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NAME-DIVYANSHU KUMAR
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CLASS ROLL NO.-1921027
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COLLEGE ROLL NO.-1905326
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BRANCH- INFORMATION TECHNOLOGY
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SECTION- A1
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SUBMITTED TO- RANJODH MA'AM
Q1.Program to add two numbers.
#include <stdio.h>
int main()
{
int x, y, z;
printf("Enter two numbers to add\n");
scanf("%d%d", &x, &y);
z = x + y;
printf("Sum of the numbers = %d\n", z);
return 0;
}OUTPUT
Enter two numbers to add:
7
9
Sum of the numbers = 16
Q2.Display college address using puts.
#include<stdio.h>
int main()
{
puts("Principal");
puts("Panth Rattan Shiri Gurcharan Singh Tohra Complex");
puts("Guru Nanak Dev Engineering College");
puts("Gill Park");
puts("Ludhiana - 141006");
puts("India");
}OUTPUT
Principal
Panth Rattan Shiri Gurcharan Singh Tohra Complex
Guru Nanak Dev Engineering College
Gill Park
Ludhiana - 141006
India
Q3.Program to write N number times "I will switch off lights, fans and Ac when leaving room".
#include<stdio.h>
int main()
{
int a;
printf("ENTER THE NUMBER:");
scanf("%d",&a);
for ( int i = 1; i <= a; i++ )
printf(" \nI will switch off lights, fans and AC when leaving room");
}OUTPUT
ENTER THE NUMBER :6
I will switch off lights, fans and AC when leaving room
I will switch off lights, fans and AC when leaving room
I will switch off lights, fans and AC when leaving room
I will switch off lights, fans and AC when leaving room
I will switch off lights, fans and AC when leaving room
I will switch off lights, fans and AC when leaving room
Q4.Convert temperature from Farenheit to Centigrade scale.
#include<stdio.h>
int main()
{
printf("Enter temperature in fahrenheit:");
float f,c=0;
scanf("%f",&f);
c=(5.0/9)*(f-32.0);
printf("Temperature in centigrade:%f\n",c);
} OUTPUT
Enter temperature in fahrenheit:56
Temperature in centigrade:13.333333
Q5.Check whether the number is even or odd.
#include<stdio.h>
int main()
{
int i;
printf("Enter the Number:");
scanf("%d",&i);
if (i%2==0)
printf("Number is Even\n");
else
printf("Number is Odd\n");
} OUTPUT
Enter the Number:7
Number is Odd
Enter the Number:4
Number is Even
*Q6.Print half pyramid using .
#include<stdio.h>
int main()
{
int n,i,j;
printf("Enter desired number");
scanf("%d",&n);
for (i=1;i<=n;i++)
{
for(j=1;j<=i;j++)
{
printf("*");
}
printf("\n");
}
}OUTPUT
Enter desired number7
*
**
***
****
*****
******
*******
*Q7.Finds the factorial of a number .
#include <stdio.h>
int main()
{
int c, n, f = 1;
printf("Enter a number to calculate its factorial\n");
scanf("%d", &n);
for (c = 1; c <= n; c++)
f = f * c;
printf("Factorial of %d = %d\n", n, f);
return 0;
}OUTPUT
Enter a number to calculate its factorial
6
Factorial of 6 = 720
Q8.Display the table of user's choice.
#include<stdio.h>
int main()
{
printf("Enter Number");
int n;
scanf("%d",&n);
int i;
for(i=1;i<=10;i++)
{
printf("%d x %d = %d\n",n,i,n*i);
}
}OUTPUT
Enter Number3
3 x 1 = 3
3 x 2 = 6
3 x 3 = 9
3 x 4 = 12
3 x 5 = 15
3 x 6 = 18
3 x 7 = 21
3 x 8 = 24
3 x 9 = 27
3 x 10 = 30
Q9.Display the table of two desired number.
#include<stdio.h>
int main()
{
printf("Enter 1st Number");
int n1;
scanf("%d",&n1);
printf("Enter 2nd Number");
int n2;
scanf("%d",&n2);
int i,j;
for(j=n1;j<=n2;j++)
{
for(i=1;i<=10;i++)
{
printf("%d x %d = %d\n",j,i,j*i);
}
}
}OUTPUT
Enter 1st Number8
Enter 2nd Number9
8 x 1 = 8
8 x 2 = 16
8 x 3 = 24
8 x 4 = 32
8 x 5 = 40
8 x 6 = 48
8 x 7 = 56
8 x 8 = 64
8 x 9 = 72
8 x 10 = 80
9 x 1 = 9
9 x 2 = 18
9 x 3 = 27
9 x 4 = 36
9 x 5 = 45
9 x 6 = 54
9 x 7 = 63
9 x 8 = 72
9 x 9 = 81
9 x 10 = 90
Q10. Check whether the number is prime or composite.
#include <stdio.h>
int main()
int n, i, flag = 0;
printf("Enter a positive integer: ");
scanf("%d", &n);
for (i = 2; i < n / 2; ++i)
if (n % i == 0)
flag = 1;
break;
}
}
if (n == 1)
{
printf("1 is neither prime nor composite.");
}
else {
if (flag == 0)
printf("%d is a prime number.", n);
else
printf("%d is composite.", n);
}
return 0;
}OUTPUT
Enter a positive integer: 29
29 is a prime number.
Q11.Find the factorial of a number using recursion.
#include <stdio.h>
long int multiplyNumbers(int n);
int main()
{
int n;
printf("Enter a positive integer: ");
scanf("%d", &n);
printf("Factorial of %d = %ld", n, multiplyNumbers(n));
return 0;
}
long int multiplyNumbers(int n)
{ if (n >= 1)
return n*multiplyNumbers(n-1);
else return 1;
}OUTPUT
Enter a positive integer: 5
Factorial of 5 = 120
Q12.Takes two integers, operands and one operator from user, performs the operation and then print the result.
#include<stdio.h>
int main()
{
char o;
printf("Select an operator:");
scanf("%c",&o);
int a,b;
printf("Enter first number:");
scanf("%d",&a);
printf("Enter second nember:");
scanf("%d",&b);
switch(o)
{
case '+':
printf("Sum is %d",a+b);
break;
case '-':
printf("Difference is %d",a-b);
break;
case '*':
printf("Product is %d",a*b);
break;
case '/':
printf("Quotient is %d",a/b);
break;
case '%':
printf("Remainder is %d",a%b);
break;
default:
printf("Invalid Entry");
}
}OUTPUT
Select an operator:*
Enter first number:5
Enter second nember:8
Product is 40
Q13.Program to reverse a number.
#include <stdio.h>
int main()
{
int n, reversedNumber = 0, remainder;
printf("Enter an integer: ");
scanf("%d", &n);
while(n != 0)
{
remainder = n%10;
reversedNumber = reversedNumber*10 + remainder;
n /= 10;
}
printf("Reversed Number = %d", reversedNumber);
return 0;
}OUTPUT
Enter an integer: 3111998
Reversed Number = 8991113
Q14.Find the greatest number a the entered number.
#include <stdio.h>
int main()
{
int i, n;
float arr[100];
printf("Enter the number of elements (1 to 100): ");
scanf("%d", &n);
for (i = 0; i < n; ++i)
printf("Enter number%d: ", i + 1);
scanf("%f", &arr[i]);
}
for (i = 1; i < n; ++i)
{
if (arr[0] < arr[i])
arr[0] = arr[i];
}
printf("Largest element = %.2f", arr[0]);
return 0;
}OUTPUT
Enter the number of elements (1 to 100): 5
Enter number1: 34.5
Enter number2: 2.4
Enter number3: -35.5
Enter number4: 38.7
Enter number5: 24.5
Largest element = 38.70
Q15.Find the even numbers using array.
#include<stdio.h>
int main()
{
int a[10],i;
printf("\n\t\t\t\tFIND EVEN NUMBER USING ARRAY= ");
for(i=0;i<=9;i++)
{
printf("\nENTER THE NUMBER %d=",i+1);
scanf("%d",&a[i]);
}
printf("EVEN NUMBERS Are =");
for(i=0;i<=9;i++)
{
if(a[i]%2==0)
{
printf("\n%d\n",a[i]);
}
}
}==++OUTPUT++==
ENTER THE NUMBER 1=4
ENTER THE NUMBER 2=7
ENTER THE NUMBER 3=8
ENTER THE NUMBER 4=3
ENTER THE NUMBER 5=9
ENTER THE NUMBER 6=2
ENTER THE NUMBER 7=0
ENTER THE NUMBER 8=1
ENTER THE NUMBER 9=3
ENTER THE NUMBER 10=2
EVEN NUMBERS Are =
4
8
2
0
2
Q16.Program to check whether the number is positive or negative
#include <stdio.h>
int main() {
double num;
printf("Enter a number: ");
scanf("%lf", &num);
if (num <= 0.0) {
if (num == 0.0)
printf("You entered 0.");
else
printf("You entered a negative number.");
}
else
printf("You entered a positive number.");
return 0;
}OUTPUT
Enter a number: 9
You entered a positive number
Enter a number: -4
You entered a negative number.
Q17.Simple calculator using switch and break statement.
#include <stdio.h>
int main() {
char operator;
double first, second;
printf("Enter an operator (+, -, *,): ");
scanf("%c", &operator);
printf("Enter two operands: ");
scanf("%lf %lf", &first, &second);
switch (operator)
{
case '+':
printf("%.1lf + %.1lf = %.1lf", first, second, first + second);
break;
case '-':
printf("%.1lf - %.1lf = %.1lf", first, second, first - second);
break;
case '*':
printf("%.1lf * %.1lf = %.1lf", first, second, first * second);
break;
case '/':
printf("%.1lf / %.1lf = %.1lf", first, second, first / second);
break;
printf("Error! operator is not correct");
}
return 0;
}OUTPUT
Enter an operator (+, -, *,): +
Enter two operands: 2
5
2.0 + 5.0 = 7.0
Q18.Program to find total experience of employs.
#include<stdio.h>
void main()
{
int n;
printf("Enter the number of employees\n");
scanf("%d",&n);
int a[n];
for(int i=1;i<=n;i++)
{
printf("Enter e%d experience:", i);
scanf("%d",&a[i]);
}
int sum=0;
for (int j=1;j<=n;j++)
{
sum+=a[j];
}
printf("\n Total experience of employees is : %d\n", sum);
}OUTPUT
Enter the number of employees
6
Enter e1 experience:8
Enter e2 experience:6
Enter e3 experience:4
Enter e4 experience:5
Enter e5 experience:8
Enter e6 experience:9
Total experience of employees is : 40
Q19.Program for matrix multiplication.
#include<stdio.h>
int main(){
int a[10][10],b[10][10],mul[10][10],r,c,i,j,k;
printf("enter the number of row=");
scanf("%d",&r);
printf("enter the number of column=");
scanf("%d",&c);
printf("enter the first matrix element=\n");
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("enter the second matrix element=\n");
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
{
scanf("%d",&b[i][j]);
}
}
printf("multiply of the matrix=\n");
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
{
mul[i][j]=0;
for(k=0;k<c;k++)
{
mul[i][j]+=a[i][k]*b[k][j];
}
}
}
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
{
printf("%d\t",mul[i][j]);
}
printf("\n");
}
return 0;
}OUTPUT
enter the number of row=3
enter the number of column=2
enter the first matrix element=
3
9
7
4
7
9
enter the second matrix element=
4
7
8
6
5
3
multiply of the matrix=
84 75
60 73
100 103
Q20.Print inverted half pyramid using * and numbers.
#include<stdio.h>
int main() {
int i, j, rows;
printf("Enter number of rows: ");
scanf("%d", &rows);
for (i=rows; i>=1; --i)
{
for (j=1; j<=i; ++j)
{
printf("* ");
}
printf("\n");
}
return 0;
}OUTPUT
Enter number of rows: 8
* * * * * * * *
* * * * * * *
* * * * * *
* * * * *
* * * *
* * *
* *
*