.png)
HSEB C PROGRAM SOLUTION
1. For any integer input through the keyboard, write a C program to find out whether it is odd or even. [HSEB 2062,2066,2068]
#include<stdio.h>
#include<conio.h>
void main()
{
int n;
printf("\nEnter any number: ");
scanf("%d",&n);
if(n%2==0)
printf("%d is Even",n);
else
printf("%d is Odd",n);
getch();
}
2. Write a C program to input cost price
(CP) and selling price (SP) and determines whether there is gain or loss. [HSEB
2066]
#include<stdio.h>
#include<conio.h>
void main()
{
float cp,sp;
clrscr();
printf("\nEnter Cost Price and Selling
Price: ");
scanf("%f%f",&cp,&sp);
if(sp>cp)
printf("Rs. %.2f is
Profit",sp-cp);
else
printf("Rs. %.2f is
Loss",cp-sp);
getch();
}
3. Write a C program that reads three
numbers and displays the largest among them. [HSEB 2065]
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,c;
clrscr();
printf("\nEnter any three numbers:
");
scanf("%d%d%d",&a,&b,&c);
if(a>b && a>c)
printf("%d is Greater",a);
else if(b>a && b>c)
printf("%d is Greater",b);
else
printf("%d is Greater",c);
getch();
}
4. Write a C program that checks whether the
numbered entered by the user is exactly divisible by 5 but not by 11.[HSEB
2065]
#include<stdio.h>
#include<conio.h>
void main()
{
int n;
clrscr();
printf("\nEnter any number: ");
scanf("%d",&n);
if(n%5==0 && n%11!=0)
printf("%d is exactly Divisible by 5
but not by 11",n);
else
printf("condition
dissatisfied");
getch();
}
5. Write a C program to find the commission
amount on the basis of sales amount as per following conditions:
Sales amount
(Rs) Commission
0-1000 5%
1001-2000 10%
>2000 12% [HSEB 2066]
#include<stdio.h>
#include<conio.h>
void main()
{
float s,ca;
clrscr();
printf("\nEnter sales amount: ");
scanf("%f",&s);
if(s>=0 && s<=1000)
ca=0.05*c;
else if(s>1000 &&
s<=2000)
ca=0.1*c;
else
ca=0.12*c;
printf("Your Commission is Rs.
%.2f",ca);
getch();
}
6. Write a program to display name of the
day on the basis of entered number 1 to 7. For example, 1 for Sunday. [HSEB
2066]
#include<stdio.h>
#include<conio.h>
void main()
{
int n;
printf("\nEnter number between 1 to 7
");
scanf("%d",&n);
switch(n)
{
case 1:
printf("\nSUNDAY");
break;
case 2:
printf("\nMONDAY");
break;
case 3:
printf("\nTUESDAY");
break;
case 4:
printf("\nWEDNESDAY");
break;
case 5:
printf("\nTHURSDAY");
break;
case 6:
printf("\nFRIDAY");
break;
case 7:
printf("\nSATURDAY");
break;
default:
printf("\n Invalid Choice");
}
getch();
}
7. Write a C program to display the sum of
‘n’ terms of even numbers. [HSEB 2063]
#include<stdio.h>
#include<conio.h>
void main()
{
int i,n,s=0,a=2;
clrscr();
printf("\nEnter how many numbers?
");
scanf("%d",&n);
for(i=0;i<n;i++)
{
s+=a;
a=a+2;
}
printf("\n Sum of %d terms of even
numbers is %d",n,s);
getch();
}
8. Write a C program to input a number and
display its multiplication table. [HSEB 2958, 2061]
#include<stdio.h>
#include<conio.h>
void main()
{
int n,i;
clrscr();
printf("\n Enter number:");
scanf("%d",&n);
for(i=1;i<=10;i++)
printf("\n%d X %d = %d",n,i,n*i);
getch();
}
9. Write a C program to read a positive
number integer less than 20 and display its multiplication table. [HSEB 2062]
#include<stdio.h>
#include<conio.h>
void main()
{
int n,i;
clrscr();
printf("\n Enter positive number less
than 20:");
scanf("%d",&n);
if(n>0 && n<20)
{
for(i=1;i<=10;i++)
printf("\n%d X %d = %d",n,i,n*i);
}
else
printf("\n Invalid number");
getch();
}
10. Write a C program to print 10 terms of any
series using FOR loop. [HSEB 2064]
#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,a=5;
clrscr();
printf("\n Enter how many
numbers?");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("%d\t",a);
a=a+5;
}
getch();
}
11. Write a C program to print 10 terms of the
following series using FOR loop, 1, 5, 9, 13 [HSEB 2063]
#include<stdio.h>
#include<conio.h>
void main()
{
int i,a=1;
clrscr();
for(i=0;i<10;i++)
{
printf("%d\t",a);
a=a+4;
}
getch();
}
12. Write a C program to read a four digit number
and display it in reverse order. [HSEB 2055]
#include<stdio.h>
#include<conio.h>
void main()
{
int c=0,n,r,s=0;
clrscr();
printf("\n Enter any 4 digit number:
");
scanf("%d",&n);
while(n!=0)
{
r=n%10;
s=s*10+r;
n=n/10;
c=c+1;
}
if(c<=4)
printf("\n Reversed number is
%d",s);
else
printf("\n It is not a 4 digit
number");
getch();
}
13. Write a C program to find the factorial of a
given positive number. [HSEB 2066]
#include<stdio.h>
#include<conio.h>
void main()
{
int n,f=1,i;
clrscr();
printf("\n Enter positive number:
");
scanf("%d",&n);
if(n<0)
printf("\n You have entered negative
number");
else if(n==0)
printf("\n Factorial of %d is
1",n);
else
{
for(i=1;i<=n;i++)
f=f*i;
printf("\n Factoria of %d is
%d",n,f);
}
getch();
}
14. Write a C program to print 10 positive
integers and their factorials. [HSEB 2062]
#include<stdio.h>
#include<conio.h>
void main()
{
int n,f=1,i;
clrscr();
printf("\n Enter positive number:
");
scanf("%d",&n);
if(n<0)
printf("\n You have entered negative
number");
else if(n==0)
printf("\n Factorial of %d is
1",n);
else
{
for(i=1;i<=n;i++)
{
printf("%d\t",i);
f=f*i;
}
printf("\n Factoria of %d is
%d",n,f);
}
getch();
}
15. Write a program to input an integer number
and check whether it is prime or not. [HSEB 2066]
#include<stdio.h>
#include<conio.h>
void main()
{
int n,c=0,i;
clrscr();
printf("\nEnter any integer number:
");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
if(n%i==0)
c=c+1;
}
if(c==2)
printf("%d is prime number",n);
else
printf("%d is not prime number",n);
getch();
}
16. Write a C program to input ‘n’ numbers and
find out the largest and smallest number. [HSEB 2062]
#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,num[100],g,s;
clrscr();
printf("\nEnter how many numbers?");
scanf("%d",&n);
printf("\nEnter %d numbers",n);
for(i=0;i<n;i++)
scanf("%d",&num[i]);
g=num[0];
s=num[0];
for(i=1;i<n;i++)
{
if (num[i]>g)
g=num[i];
if(num[i]<s)
s=num[i];
}
printf("\nThe greatest number is
%d",g);
printf("\nThe smallest number is
%d",s);
getch();
}
17. Write a program to ask any n numbers from the
user. Sort them in ascending order and display. [HSEB 2065, 2067]
#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,j,num[10],temp;
clrscr();
printf("Enter how many
numbers?");
scanf("%d",&n);
printf("\nEnter %d numbers",n);
for(i=0;i<n;i++)
scanf("%d",&num[i]);
for(i=0;i<n;i++)
{
for(j=i+1;j<n;j++)
{
if(num[i]>num[j])
{
temp=num[i];
num[i]=num[j];
num[j]=temp;
}
}
}
printf("\n The sorted numbers in
ascending order are\n");
for(i=0;i<n;i++)
printf("%d\t",num[i]);
getch();
}
18. Write a program to store ten different
constant variables in an array and print out the greatest number. [HSEB 2064]
#include<stdio.h>
#include<conio.h>
void main()
{
int i,num[10],g;
clrscr();
printf("\nEnter 10 numbers");
for(i=0;i<10;i++)
scanf("%d",&num[i]);
g=num[0];
for(i=1;i<10;i++)
{
if (num[i]>g)
g=num[i];
}
printf("\nThe greatest number is
%d",g);
getch();
}
19. Write a program to sort integer variables in
descending order. [HSEB 2063]
#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,j,num[10],temp;
clrscr();
printf("Enter how many
numbers?");
scanf("%d",&n);
printf("\nEnter %d numbers",n);
for(i=0;i<n;i++)
scanf("%d",&num[i]);
for(i=0;i<n;i++)
{
for(j=i+1;j<n;j++)
{
if(num[i]<num[j])
{
temp=num[i];
num[i]=num[j];
num[j]=temp;
}
}
}
printf("\n The sorted numbers in
ascending order are\n");
for(i=0;i<n;i++)
printf("%d\t",num[i]);
getch();
}
20. Write a C program to read salaries of 200
employees and count the number of employees getting salary between 5000 to
10000. [HSEB 2062]
#include<stdio.h>
#include<conio.h>
void main()
{
int i,c=0;
float s[200];
clrscr();
printf("\nEnter salaries for 200
employees");
for(i=0;i<200;i++)
scanf("%f",&s[i]);
for(i=0;i<200;i++)
{
if (s[i]>5000 &&
s[i]<10000)
c=c+1;
}
printf("Total number of employees
getting salary between 5000 and 10000 are %d",c);
getch();
}
21. Write a program using C language to read the
age of 100 persons and count the number of persons in the age group between 50
and 60. Use FOR and CONTINUE statement. [HSEB 2061]
#include<stdio.h>
#include<conio.h>
void main()
{
int i,c=0;
float a[100];
clrscr();
printf("\nEnter age of 100
persons");
for(i=0;i<100;i++)
scanf("%f",&a[i]);
for(i=0;i<100;i++)
{
if (a[i]>50 && a[i]<60)
c=c+1;
else
continue;
}
printf("Total number of persons aged
between 50 and 60 are %d",c);
getch();
}
22. Write a C program to read age of 40 students
and count the number of students of the age between 15 and 22. [HSEB 2063]
#include<stdio.h>
#include<conio.h>
void main()
{
int i,c=0;
float a[40];
clrscr();
printf("\nEnter age of 40
students");
for(i=0;i<40;i++)
scanf("%f",&a[i]);
for(i=0;i<40;i++)
{
if (a[i]>15 && a[i]<22)
c=c+1;
}
printf("Total number of students aged
between 15 and 21 are %d",c);
getch();
}
23. Write a program in C to store mark obtained
by ‘n’ students and count the number of students who obtained mark greater than
70. Also count the number of students who are failed. (<35) [HSEB 2066]
#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,c=0,cf=0;
float m[100];
clrscr();
printf("\nEnter how many
students?");
scanf("%d",&n);
printf("\n Enter marks for %d students:
",n);
for(i=0;i<n;i++)
scanf("%f",&m[i]);
for(i=0;i<n;i++)
if(m[i]>70)
c=c+1;
else if(m[i]<35)
cf=cf+1;
printf("\n Total no. of students scoring
more than 70 are %d ",c);
printf("\nTotal no. of students who are
fail are %d ",cf);
getch();
}
24. Write a program to read elements of the two
matrices of order 3 x 3 and perform the matrix addition. [HSEB 2065]
#include<stdio.h>
#include<conio.h>
void main()
{
int a[3][3], b[3][3],s[3][3],i,j;
clrscr();
printf("\n Enter elements for matrix
A\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\nEnter the number [%d]
[%d] ",i,j);
scanf("%d",&a[i][j]);
}
}
printf("\n Enter the elements for
matrix B\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\nEnter the number [%d]
[%d] ",i,j);
scanf("%d",&b[i][j]);
}
}
printf("\n The sum of two matrix
is\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
s[i][j]=a[i][j]+b[i][j];
}
}
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("%d\t",s[i][j]);
}
printf("\n");
}
getch();
}
25. Write a program to count the number of vowels
and consonants in a given text. [HSEB 2064, 2066]
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char str[20];
int nv=0,nc=0,i;
printf("\nEnter
any string");
gets(str);
strupr(str);
for(i=0;str[i]!='\0';i++)
{
if(str[i]=='A' ||
str[i]=='E' || str[i]=='I' || str[i]=='O' || str[i]=='U')
nv++;
else
if(str[i]>='A' && str[i]<='Z')
nc++;
}
printf("\n No.
of Vowels = %d ",nv);
printf("\n No.
of Consonants = %d ",nc);
getch();
}
26. Write a program to read a line of text and
convert it into uppercase. [HSEB 2068]
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char string[100];
printf("\nEnter any line of text in
lowercase\n");
gets(string);
strupr(string);
printf("\n Enterd text converted into
uppercase\n");
puts(string);
getch();
}
OR
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char string[100];
int i;
printf("\nEnter any line of text in
lowercase\n");
gets(string);
for(i=0;string[i]!=0;i++)
{
if(string[i]>='a' &&
string[i]<='z')
string[i]=string[i]-32;
}
printf("\n Enterd text converted into
uppercase\n");
puts(string);
getch();
}
27. Write a program to input n names and sort
them in alphabetical order. [HSEB 2062, 2068]
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char name[50][20],temp[20];
int i,n,j;
printf("\nEnter how many names: ");
scanf("%d",&n);
printf("Enter %d names\n",n);
for(i=0;i<n;i++)
scanf("%s",name[i]);
for(i=0;i<n;i++)
{
for(j=i+1;j<n;j++)
{
if(strcmp(name[i],name[j])>0)
{
strcpy(temp,name[i]);
strcpy(name[i],name[j]);
strcpy(name[j],temp);
}
}
}
printf("\nThe sorted names are\n");
for(i=0;i<n;i++)
printf("\n%s",name[i]);
getch();
}
28. Write a C Program to enter name of students
and age of ten different students in array and arrange them in descending order
according to the age and print them. [HSEB 2057]
#include<stdio.h>
#include<conio.h>
#include<string.h>
struct student
{
char name [25];
int age;
}std[10];
void main()
{
char temp[25];
int i,j,tm;
printf("Enter 10 names and age of
students\n");
for(i=0;i<10;i++)
{
scanf("%s",std[i].name);
scanf("%d",&std[i].age);
}
for(i=0;i<10;i++)
{
for(j=i+1;j<10;j++)
{
if(std[i].age<std[j].age)
{
tm=std[i].age;
std[i].age=std[j].age;
std[j].age=tm;
strcpy(temp,std[i].name);
strcpy(std[i].name,std[j].name);
strcpy(std[j].name,temp);
}
}
}
printf("\nThe sorted names and age in
descending order according to age are\n");
for(i=0;i<10;i++)
printf("\n%s\t%d",std[i].name,std[i].age);
getch();
}
29. Write a program to store name and mark of 20
students. Sort the data according to mark in descending order and display them.
[HSEB 2066]
#include<stdio.h>
#include<conio.h>
#include<string.h>
struct student
{
char name [25];
int mark;
}std[10];
void main()
{
char temp[25];
int i,j,tm;
printf("Enter names and marks for 20
students\n");
for(i=0;i<20;i++)
{
scanf("%s",std[i].name);
scanf("%d",&std[i].mark);
}
for(i=0;i<20;i++)
{
for(j=i+1;j<20;j++)
{
if(std[i].mark<std[j].mark)
{
tm=std[i].mark;
std[i].mark=std[j].mark;
std[j].mark=tm;
strcpy(temp,std[i].name);
strcpy(std[i].name,std[j].name);
strcpy(std[j].name,temp);
}
}
}
printf("\nThe sorted names and marks in
descending order according to marks are\n");
for(i=0;i<20;i++)
printf("\n%s\t%d",std[i].name,std[i].mark);
getch();
}
30. Write a C program to store Kathmandu valley’s
7 days maximum and minimum temperature (in centigrade) and calculate average,
maximum, minimum temperature using function and print 7 days temperature,
minimum, maximum and average temperature using any high level programming
language. [HSEB 2060]
#include<stdio.h>
#include<conio.h>
float maxt(float
[]);
float min(float
[]);
float avg(float
[]);
float
m[7],mi[7],a[7];
void main()
{
float maxtemp, mintemp, avgtemp;
int i;
clrscr();
maxtemp=maxt(m);
mintemp=min(mi);
avgtemp=avg(a);
printf("\n\tMax Temp\t Min Temp \t
Average Temp\n");
for(i=1;i<=7;i++)
{
printf("\nDay
%d\t%f\t%f\t%f\n",i,m[i],mi[i],a[i]);
}
printf("\n Maximum Temperature is
%f",maxtemp);
printf("\n MInimum Temperature is
%f",mintemp);
printf("\n Average Temperature is
%f",avgtemp);
getch();
}
float maxt(float m[])
{
int i;
float tm;
for(i=1;i<=7;i++)
{
printf("\nEnter maximum temperature for
day %d ", i);
scanf("%f",&m[i]);
}
tm=m[1];
for(i=2;i<=7;i++)
{
if (m[i]>tm)
tm=m[i];
}
return tm;
}
float min(float mi[])
{
int i;
float tmi;
for(i=1;i<=7;i++)
{
printf("\nEnter minimum temperature for
day %d ", i);
scanf("%f",&mi[i]);
}
tmi=mi[1];
for(i=2;i<=7;i++)
{
if (mi[i]<tmi)
tmi=mi[i];
}
return tmi;
}
float avg(float a[])
{
int i;
float ta,s;
for(i=1;i<=7;i++)
{
a[i]=(m[i]+mi[i])/2;
s=s+a[i];
}
ta=s/7;
return ta;
}
31. Write a C program to input a message from
keyboard and display the menu
a. Print the message length in terms of
characters.
b. print the message in reverse order
c. print the message in capital letters
d. copy the message from one location of
screen to another location. [HSEB
2060]
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char
msg[100],msg1[100];
int i,ch,len,j;
clrscr();
printf("\n
Enter a message:");
gets(msg);
printf("\n 1.
Print the message length in terms of characters");
printf("\n 2.
Print the message in reverse order");
printf("\n 3.
Print the message in capital letters");
printf("\n 4.
Copy the message from one location to another");
printf("\n
Enter your choice (1-4)");
scanf("%d",&ch);
switch(ch)
{
case 1:
len=0;
while(msg[len]!='\0')
len++;
printf("\n The string %s has %d
characters\n",msg,len);
break;
case 2:
len=strlen(msg);
j=0;
for(i=len-1;i>=0;i--)
msg1[j++]=msg[i];
msg[j]='\0';
strcpy(msg,msg1);
printf("\n The reversed string is
%s",msg);
break;
case 3:
for(i=0;msg[i]!='\0';i++)
{
if(msg[i]>='a' && msg[i]<='z')
msg[i]=msg[i]-32;
}
printf("\n The message in uppercase
%s",msg);
break;
case 4:
for(i=0;msg[i]!='\0';i++)
msg1[i]=msg[i];
msg1[i]='\0';
printf("The copied string is %s
",msg1);
break;
default:
printf("\n Invalid choice");
}
getch();
}
32. Write a program to find the sum of n integer
numbers using function. {HSEB 2066]
#include<stdio.h>
#include<conio.h>
int sum(int);
void main()
{
int n,a;
clrscr();
printf("\nEnter how many numbers:
");
scanf("%d",&n);
a=sum(n);
printf("\n Sum of %d numbers=
%d",n,a);
getch();
}
int sum(int n)
{
int i,s=0;
for(i=1;i<=n;i++)
s=s+i;
return s;
}
33. Write a program to calculate the factorial of
a given number using function. [HSEB 2063]
#include<stdio.h>
#include<conio.h>
int fact(int);
void main()
{
int n,a;
clrscr();
printf("\nEnter any number: ");
scanf("%d",&n);
a=fact(n);
printf("\n factorial= %d",a);
getch();
}
int fact(int n)
{
int i,f=1;
for(i=1;i<=n;i++)
f=f*i;
return f;
}
34. Write a program to calculate the factorial of
a given number using recursive function.
[HSEB 2064, 2068]
#include<stdio.h>
#include<conio.h>
int fact(int);
void main()
{
int n,a;
clrscr();
printf("\nEnter any number: ");
scanf("%d",&n);
a=fact(n);
printf("\n factorial= %d",a);
getch();
}
int fact(int n)
{
if(n<=1)
return 1;
else
return(n*fact(n-1));
}
35. Write a program using user defined function
to calculate y raise to power x.[HSEB 2067]
#include<stdio.h>
#include<conio.h>
int power(int,int);
void main()
{
int y,x,p;
printf("\n
Enter values for y and x: ");
scanf("%d%d",&y,&x);
p=power(y,x);
printf("\n y
raise to power x= %d",p);
getch();
}
int power(int y,
int x)
{
int pw=1,i;
for(i=1;i<=x;i++)
pw=pw*y;
return pw;
}
36. Write a program that reads different names
and addresses into the computer and rearrange them into alphabetical order
using the structure variables. [HSEB 2061, 2064]
#include<stdio.h>
#include<conio.h>
#include<string.h>
struct student
{
char name[30];
char add [30];
}std[100];
void main()
{
char
tname[30],tadd[30];
int i,j,n;
printf("\n
Enter how many students: ");
scanf("%d",&n);
printf("Enter
names and addresses for %d srudents: ",n);
for(i=0;i<n;i++)
scanf("%s%s",std[i].name,
std[i].add);
for(i=0;i<n;i++)
{
for(j=i+1;j<n;j++)
{
if
(strcmp(std[i].name,std[j].name)>0)
{
strcpy(tname,std[i].name);
strcpy(std[i].name,std[j].name);
strcpy(std[j].name,tname);
strcpy(tadd,std[i].add);
strcpy(std[i].add,std[j].add);
strcpy(std[j].add,tadd);
}
}
}
printf("\n
Sorted names in alphabetical order according to names are:\n");
for(i=0;i<n;i++)
printf("\n
%s\t %s",std[i].name,std[i].add);
getch();
}
37. Write a program to show data writing and
reading operation to/from a data file. [HSEB 2066]
#include<stdio.h>
#include<conio.h>
struct
{
int roll;
char name[25];
float mark;
}std;
void main()
{
int n,i;
FILE *fp;
fp=fopen("d:\\cprg\student.txt","wb");
clrscr();
printf("\n Enter how many records:
");
scanf("%d",&n);
printf("enter student number name and
marks for %d students",n);
for(i=0;i<n;i++)
{
scanf("%d%s%f",&std.roll,std.name,&std.mark);
fwrite(&std,sizeof(std),1,fp);
}
fclose(fp);
fp=fopen("d:\\cprg\student.txt","r");
printf("\nRoll\tName\tMarks
Obtained\n");
while(fread(&std,sizeof(std),1,fp))
printf("%d\t%s\t%f\n",std.roll,std.name,std.mark);
fclose(fp);
getch();
}
38. Write a program to enter name, roll-number
and marks of 10 students and store them in a file. [HSEB 2065]
# winclude<stdio.h>
#include<conio.h>
struct
{
int roll;
char name[25];
float mark;
}std;
void main()
{
int i;
FILE *fp;
fp=fopen("d:\\cprg\student.txt","wb");
clrscr();
printf("enter student roll number name
and marks for 10 students");
for(i=0;i<10;i++)
{
scanf("%d%s%f",&std.roll,std.name,&std.mark);
fwrite(&std,sizeof(std),1,fp);
}
fclose(fp);
getch();
}
39. Write a program to store std-no, name and
mark of ‘n’ students in a data file. Display the records in appropriate format
reading from the file. [HSEB 2066]
#include<stdio.h>
#include<conio.h>
struct
{
int roll;
char name[25];
float mark;
}std;
void main()
{
int n,i;
FILE *fp;
fp=fopen("d:\\cprg\student.txt","w");
clrscr();
printf("\n Enter how many records:
");
scanf("%d",&n);
printf("enter student number name and
marks for %d students",n);
for(i=0;i<n;i++)
{
scanf("%d%s%f",&std.roll,std.name,&std.mark);
fprintf(fp,"%d\t%s\t%f\n",std.roll,std.name,std.mark);
}
fclose(fp);
fp=fopen("d:\\cprg\student.txt","r");
printf("\nRoll\tName\tMarks
Obtained\n");
while(fscanf(fp,"%d%s%f",&std.roll,std.name,&std.mark)!=EOF)
printf("%d\t%s\t%f\n",std.roll,std.name,std.mark);
fclose(fp);
getch();
}
40. Write a program using C language that reads
successive records from the new data file and display each record on the screen
in an appropriate format. [HSEB 2061, 2062]
#include<stdio.h>
#include<conio.h>
struct
{
int roll;
char name[25];
float mark;
}std;
void main()
{
int n,i;
FILE *fp;
fp=fopen("d:\\cprg\student.txt","wb");
clrscr();
printf("\n Enter how many records:
");
scanf("%d",&n);
printf("enter student number name and
marks for %d students",n);
for(i=0;i<n;i++)
{
scanf("%d%s%f",&std.roll,std.name,&std.mark);
fwrite(&std,sizeof(std),1,fp);
}
fclose(fp);
fp=fopen("d:\\cprg\student.txt","r");
printf("\nRoll\tName\tMarks
Obtained\n");
while(fread(&std,sizeof(std),1,fp))
printf("%d\t%s\t%f\n",std.roll,std.name,std.mark);
fclose(fp);
getch();
}
41. Write a program to rename and delete a data
file using rename and remove command. [HSEB 2064, 2067]
#include<stdio.h>
#include<conio.h>
void main()
{
char filename[20];
char
oldfilename[20],newfilename[20];
printf("\n
Enter the file name to be removed: ");
gets(filename);
if(remove(filename)==0)
printf("File
%s is removed",filename);
else
printf("File
%s cannot be removed",filename);
printf("\n
Enter old file name: ");
gets(oldfilename);
printf("\n
Enter new file name: ");
gets(newfilename);
if(rename(oldfilename,newfilename)==0)
printf("\n
File %s is renamed to %s",oldfilename,newfilename);
else
printf("\n
file %s cannot be renamed",oldfilename);
getch();
}
42. Write
a program to open a new file and read roll-no, name, address and phone
number of students until the user says “no”, after reading the data, write it
to the file then display the content of the file. [HSEB 2068]
#include<stdio.h>
#include<conio.h>
struct
{
int roll;
char name[25];
char add[30];
long phone;
}std;
void main()
{
char ch='y';
FILE *fp;
fp=fopen("d:\\cprg\student.txt","w");
clrscr();
while(ch=='y' || ch=='Y')
{
printf("\n Enter roll number: ");
scanf("%d",&std.roll);
printf("\n Enter name: ");
scanf("%s",std.name);
printf("\n Enter address: ");
scanf("%s",std.add);
printf("\n Enter phone number: ");
scanf("%ld",&std.phone);
fprintf(fp,"%d\t%s\t%s\t%ld\n",std.roll,std.name,std.add,std.phone);
printf("DO you want to continue (Y/N)?
");
ch=getche();
}
fclose(fp);
fp=fopen("d:\\cprg\student.txt","r");
printf("\nRoll\tName\tAddress\tPhone\n");
while(fscanf(fp,"%d%s%s%ld",&std.roll,std.name,std.add,&std.phone)!=EOF)
printf("%d\t%s\t%s\t%ld\n",std.roll,std.name,std.add,std.phone);
fclose(fp);
getch();
}
C Program HSEB
Question Solved PART III
1. Write a program to read a line of text
and convert it into uppercase. [HSEB 2068]
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char string[100];
printf("\nEnter any line of text in
lowercase\n");
gets(string);
strupr(string);
printf("\n Enterd text converted into
uppercase\n");
puts(string);
getch();
}
OR
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char string[100];
int i;
printf("\nEnter any line of text in
lowercase\n");
gets(string);
for(i=0;string[i]!=0;i++)
{
if(string[i]>='a' &&
string[i]<='z')
string[i]=string[i]-32;
}
printf("\n Enterd text converted into
uppercase\n");
puts(string);
getch();
}
2. Write a program to input n names and
sort them in alphabetical order. [HSEB 2062, 2068]
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char name[50][20],temp[20];
int i,n,j;
printf("\nEnter how many names: ");
scanf("%d",&n);
printf("Enter %d names\n",n);
for(i=0;i<n;i++)
scanf("%s",name[i]);
for(i=0;i<n;i++)
{
for(j=i+1;j<n;j++)
{
if(strcmp(name[i],name[j])>0)
{
strcpy(temp,name[i]);
strcpy(name[i],name[j]);
strcpy(name[j],temp);
}
}
}
printf("\nThe sorted names are\n");
for(i=0;i<n;i++)
printf("\n%s",name[i]);
getch();
}
3. Write a C Program to enter name of
students and age of ten different students in array and arrange them in
descending order according to the age and print them. [HSEB 2057]
#include<stdio.h>
#include<conio.h>
#include<string.h>
struct student
{
char name [25];
int age;
}std[10];
void main()
{
char temp[25];
int i,j,tm;
printf("Enter 10 names and age of
students\n");
for(i=0;i<10;i++)
{
scanf("%s",std[i].name);
scanf("%d",&std[i].age);
}
for(i=0;i<10;i++)
{
for(j=i+1;j<10;j++)
{
if(std[i].age<std[j].age)
{
tm=std[i].age;
std[i].age=std[j].age;
std[j].age=tm;
strcpy(temp,std[i].name);
strcpy(std[i].name,std[j].name);
strcpy(std[j].name,temp);
}
}
}
printf("\nThe sorted names and age in
descending order according to age are\n");
for(i=0;i<10;i++)
printf("\n%s\t%d",std[i].name,std[i].age);
getch();
}
4. Write a program to store name and mark
of 20 students. Sort the data according to mark in descending order and display
them. [HSEB 2066]
#include<stdio.h>
#include<conio.h>
#include<string.h>
struct student
{
char name [25];
int mark;
}std[10];
void main()
{
char temp[25];
int i,j,tm;
printf("Enter names and marks for 20
students\n");
for(i=0;i<20;i++)
{
scanf("%s",std[i].name);
scanf("%d",&std[i].mark);
}
for(i=0;i<20;i++)
{
for(j=i+1;j<20;j++)
{
if(std[i].mark<std[j].mark)
{
tm=std[i].mark;
std[i].mark=std[j].mark;
std[j].mark=tm;
strcpy(temp,std[i].name);
strcpy(std[i].name,std[j].name);
strcpy(std[j].name,temp);
}
}
}
printf("\nThe sorted names and marks in
descending order according to marks are\n");
for(i=0;i<20;i++)
printf("\n%s\t%d",std[i].name,std[i].mark);
getch();
}
5. Write a program to find the sum of n
integer numbers using function. {HSEB 2066]
#include<stdio.h>
#include<conio.h>
int sum(int);
void main()
{
int n,a;
clrscr();
printf("\nEnter how many numbers:
");
scanf("%d",&n);
a=sum(n);
printf("\n Sum of %d numbers=
%d",n,a);
getch();
}
int sum(int n)
{
int i,s=0;
for(i=1;i<=n;i++)
s=s+i;
return s;
}
6. Write a program to calculate the
factorial of a given number using function. [HSEB 2063]
#include<stdio.h>
#include<conio.h>
int fact(int);
void main()
{
int n,a;
clrscr();
printf("\nEnter any number: ");
scanf("%d",&n);
a=fact(n);
printf("\n factorial= %d",a);
getch();
}
int fact(int n)
{
int i,f=1;
for(i=1;i<=n;i++)
f=f*i;
return f;
}
7. Write a program to calculate the
factorial of a given number using recursive
function. [HSEB 2064, 2068]
#include<stdio.h>
#include<conio.h>
int fact(int);
void main()
{
int n,a;
clrscr();
printf("\nEnter any number: ");
scanf("%d",&n);
a=fact(n);
printf("\n factorial= %d",a);
getch();
}
int fact(int n)
{
if(n<=1)
return 1;
else
return(n*fact(n-1));
}
8. Write a program using user defined
function to calculate y raise to power x.[HSEB 2067]
#include<stdio.h>
#include<conio.h>
int power(int,int);
void main()
{
int y,x,p;
printf("\n
Enter values for y and x: ");
scanf("%d%d",&y,&x);
p=power(y,x);
printf("\n y
raise to power x= %d",p);
getch();
}
int power(int y,
int x)
{
int pw=1,i;
for(i=1;i<=x;i++)
pw=pw*y;
return pw;
}
9. Write a program that reads different
names and addresses into the computer and rearrange them into alphabetical
order using the structure variables. [HSEB 2061, 2064]
#include<stdio.h>
#include<conio.h>
#include<string.h>
struct student
{
char name[30];
char add [30];
}std[100];
void main()
{
char
tname[30],tadd[30];
int i,j,n;
printf("\n
Enter how many students: ");
scanf("%d",&n);
printf("Enter
names and addresses for %d srudents: ",n);
for(i=0;i<n;i++)
scanf("%s%s",std[i].name,
std[i].add);
for(i=0;i<n;i++)
{
for(j=i+1;j<n;j++)
{
if
(strcmp(std[i].name,std[j].name)>0)
{
strcpy(tname,std[i].name);
strcpy(std[i].name,std[j].name);
strcpy(std[j].name,tname);
strcpy(tadd,std[i].add);
strcpy(std[i].add,std[j].add);
strcpy(std[j].add,tadd);
}
}
}
printf("\n
Sorted names in alphabetical order according to names are:\n");
for(i=0;i<n;i++)
printf("\n
%s\t %s",std[i].name,std[i].add);
getch();
}
10. Write a program to show data writing and
reading operation to/from a data file. [HSEB 2066]
#include<stdio.h>
#include<conio.h>
struct
{
int roll;
char name[25];
float mark;
}std;
void main()
{
int n,i;
FILE *fp;
fp=fopen("d:\\cprg\student.txt","wb");
clrscr();
printf("\n Enter how many records:
");
scanf("%d",&n);
printf("enter student number name and
marks for %d students",n);
for(i=0;i<n;i++)
{
scanf("%d%s%f",&std.roll,std.name,&std.mark);
fwrite(&std,sizeof(std),1,fp);
}
fclose(fp);
fp=fopen("d:\\cprg\student.txt","r");
printf("\nRoll\tName\tMarks
Obtained\n");
while(fread(&std,sizeof(std),1,fp))
printf("%d\t%s\t%f\n",std.roll,std.name,std.mark);
fclose(fp);
getch();
}
11. Write a program to enter name, roll-number
and marks of 10 students and store them in a file. [HSEB 2065]
#
winclude<stdio.h>
#include<conio.h>
struct
{
int roll;
char name[25];
float mark;
}std;
void main()
{
int i;
FILE *fp;
fp=fopen("d:\\cprg\student.txt","wb");
clrscr();
printf("enter student roll number name
and marks for 10 students");
for(i=0;i<10;i++)
{
scanf("%d%s%f",&std.roll,std.name,&std.mark);
fwrite(&std,sizeof(std),1,fp);
}
fclose(fp);
getch();
}
12. Write a program to store std-no, name and
mark of ‘n’ students in a data file. Display the records in appropriate format
reading from the file. [HSEB 2066]
#include<stdio.h>
#include<conio.h>
struct
{
int roll;
char name[25];
float mark;
}std;
void main()
{
int n,i;
FILE *fp;
fp=fopen("d:\\cprg\student.txt","w");
clrscr();
printf("\n Enter how many records:
");
scanf("%d",&n);
printf("enter student number name and
marks for %d students",n);
for(i=0;i<n;i++)
{
scanf("%d%s%f",&std.roll,std.name,&std.mark);
fprintf(fp,"%d\t%s\t%f\n",std.roll,std.name,std.mark);
}
fclose(fp);
fp=fopen("d:\\cprg\student.txt","r");
printf("\nRoll\tName\tMarks
Obtained\n");
while(fscanf(fp,"%d%s%f",&std.roll,std.name,&std.mark)!=EOF)
printf("%d\t%s\t%f\n",std.roll,std.name,std.mark);
fclose(fp);
getch();
}
13. Write a program using C language that reads
successive records from the new data file and display each record on the screen
in an appropriate format. [HSEB 2061, 2062]
#include<stdio.h>
#include<conio.h>
struct
{
int roll;
char name[25];
float mark;
}std;
void main()
{
int n,i;
FILE *fp;
fp=fopen("d:\\cprg\student.txt","wb");
clrscr();
printf("\n Enter how many records:
");
scanf("%d",&n);
printf("enter student number name and
marks for %d students",n);
for(i=0;i<n;i++)
{
scanf("%d%s%f",&std.roll,std.name,&std.mark);
fwrite(&std,sizeof(std),1,fp);
}
fclose(fp);
fp=fopen("d:\\cprg\student.txt","r");
printf("\nRoll\tName\tMarks
Obtained\n");
while(fread(&std,sizeof(std),1,fp))
printf("%d\t%s\t%f\n",std.roll,std.name,std.mark);
fclose(fp);
getch();
}
14. Write a program to rename and delete a data
file using rename and remove command. [HSEB 2064, 2067]
15. Write
a program to open a new file and read roll-no, name, address and phone
number of students until the user says “no”, after reading the data, write it
to the file then display the content of the file. [HSEB 2068]
#include<stdio.h>
#include<conio.h>
struct
{
int roll;
char name[25];
char add[30];
long phone;
}std;
void main()
{
char ch='y';
FILE *fp;
fp=fopen("d:\\cprg\student.txt","w");
clrscr();
while(ch=='y' || ch=='Y')
{
printf("\n Enter roll number: ");
scanf("%d",&std.roll);
printf("\n Enter name: ");
scanf("%s",std.name);
printf("\n Enter address: ");
scanf("%s",std.add);
printf("\n Enter phone number: ");
scanf("%ld",&std.phone);
fprintf(fp,"%d\t%s\t%s\t%ld\n",std.roll,std.name,std.add,std.phone);
printf("DO you want to continue (Y/N)?
");
ch=getche();
}
fclose(fp);
fp=fopen("d:\\cprg\student.txt","r");
printf("\nRoll\tName\tAddress\tPhone\n");
while(fscanf(fp,"%d%s%s%ld",&std.roll,std.name,std.add,&std.phone)!=EOF)
printf("%d\t%s\t%s\t%ld\n",std.roll,std.name,std.add,std.phone);
fclose(fp);
getch();
}
