Program to check weather given number is equal to 10 or not (program to illustrate if
else statement)
#include
main()
{
int num;
printf("enter num");
scanf("%d",&num);
if(num==10)
{
printf("equal");
}
else
{
printf("not equal")
}
return 0;
}
Output:
Program to check given number is odd or even
#include
void main()
{
int ival,reaminder;
printf("enter an integer");
scanf("%d",&ival);
rem=ival%2;
if(rem==0)
printf("%d is an even",ival);
else
printf("%d is an odd",ival);
}
Output:
Program to illustrate if else statement
#include
main()
{
int age;
printf("input ur age");
scanf("%d",&age);
if(age>=18)
{
printf("you can vote");
}
else
{
printf(" you are not eligible");
}
}
Output:
Program to illustrate if else statement
#include
main()
{
int grade;
printf("enter grade");
scanf("%d",&grade);
if(grade<=10)
{
printf("you didnt score well");
}
else
{
printf("you done well")'
}
}
Output:
Program to illustrate nested if( program to compare to numbers )
#include
main()
{
int var1,var2;
printf("input the value of var1 and var2");
scanf("%d%d",&var1,&var2);
if(var1!=var2)
{
printf("var1 is not equal to var2");
if(var1>var2)
{
printf("var1 is greater than var2");
}
else
{
printf("var2 is greater than var1");
}
}
else
{
printf("var1 is equal to var2");
}
}
Output:
Program to check username and password enterd by user is correct or not
#include
main()
{
char username;
int psw;
clrscr();
print("username and psw");
scanf("%c %d",&username,&psw);
if(username=='a')
{
if(psw==123)
{
printf("login succesfull");
}
else
{
printf("password is incorrect");
}
}
else
{
printf("username is incorrect");
}
getch();
}
Output:
Program to illustate ternary operator( program to print minimum number )
#include
main()
{
int min,x,y;
printf("enter x and y");
scanf("%d%d",&x,&y);
min=x<=y?x:y;
printf(" n small number is %d",min);
return 0;
}
Output:
Program to print sum of digitd of integers
#include
main()
{
long num,temp,digit,sum=0;
printf("enter the num");
scanf("%ld",&num);
temp=num;
while(num>0)
{
digit=num%10;
sum=sum+digit;
num/=10;
}
printf("given num =%ld\n",temp);
printf("sum of the digits %ld=%ld\n",temp,sum);
}
Output:
Program to check wether given number is palindrome or not
#include
main()
{
long num,rev=0,temp,rem;
printf("enter the num");
scanf("%ld",&num);
temp=num;
while(num>0)
{
rem=num%10;
rev=rev*10+rem;
num/=10;
}
printf("given num =%d",temp);
printf("given num =%d",rev);
if(temp==rev)
printf("num is palindrome");
else
printf("not palindrome");
}
Output:
Program to add three numbers
#include
int main()
{
int a,b,c,sum;
printf("enter the values of a,b and c");
scanf("%d %d %d",&a,&b,&c);
sum=a+b+c;
printf("sum=%d",sum);
return 0;
}
Output:
Program to find area of rectangle
#include
int main()
{
int b,h,area;
printf("enter the values of breadth and height\n");
scanf("%d %d",&b,&h);
area=b*h;
printf("area=%d",area);
return 0;
}
Output:
Program to illustrate initializtion of variable and print the same
#include
main()
{
int a=1,b=2,c=3,d=4,e=5,f=6,g=7,h=8,i=9;
printf("%d,%d,%d\n",a,b,c);
printf("%d,%d,%d\n",d,e,f);
printf("%d,%d,%d\n",g,h,i);
return 0;
}
Output:
Program to illustrate pow() function
#include
main()
{
int a,b,n,e;
printf("enter the values of a,b,n\n");
scanf("%d %d %d",&a,&b,&n);
e=pow(a,10)/pow(b,n)*n;
printf("the answer is=%d",e);
return 0;
}
Output:
Program to swap two numbers without using temp variable
#include
int main()
{
int a=10,b=20;
printf("a=%d,b=%d\n",a,b);
a=a+b;
b=a-b;
a=a-b;
printf("a=%d,b=%d",a,b);
return 0;
}
Output:
Program to swap two numbers without using temp variable
#include
main()
{
int a=10,b=5;printf("a=%d,b=%d\n",a,b);
a=a*b;
b=a/b;
a=a/b;
printf("a=%d,b=%d\n",a,b);
return 0;
}
Output:
Program to swap two numbers with using temp variable
#include
main()
{
int a,b,temp;
printf("enter the value of a,b\n");
scanf("%d %d",&a,&b);
printf("before swapping value of a=%d and b=%d\n",a,b);
temp=a;
a=b;
b=temp;
printf("after swapping value of a=%d\t b=%d\n",a,b);
return 0;
}
Output:
Program to find square root of a given number using builtin function
#include
#include
int main()
{
int a,sqrt_root;
printf("enter the value of a\n");
scanf("%d",&a);
sqrt_root=sqrt(a);
printf("square root of %d=%d\n",a,sqrt_root);
return 0;
}
Output:
Program to illustrate sizeof()
#include
int main()
{
int a,z[10];
float b;
double c;
char d;
printf("Size of int: %d bytes\n",sizeof(a));
printf("Size of float: %d bytes\n",sizeof(b));
printf("Size of double: %d bytes\n",sizeof(c));
printf("Size of char: %d byte\n",sizeof(d));
printf("Size of array: %d byte\n",sizeof(z));
return 0;
}
Output:
Program to demonstrate the working of break statement in C programming
#include
int main ()
{
/* local variable definition */
int a = 10;
/* while loop execution */
while( a < 20 )
{
printf("value of a: %d\n", a);
a++;
if( a > 15)
{
/* terminate the loop using break statement */
break;
}
}
return 0;
}
Output:
C program to demonstrate the working of break statement by terminating a loop, if
user inputs negative number
# include
int main()
{
float num,average,sum;
int i,n;
printf("Maximum no. of inputs\n");
scanf("%d",&n);
for(i=1;i<=n;++i)
{
printf("Enter n%d: ",i);
scanf("%f",&num);
if(num<0.0)
break; //for loop breaks if num<0.0
sum=sum+num;
}
average=sum/(i-1);
printf("Average=%.2f",average);
return 0;
}
Output:
Program to demonstrate the working of continue statement in C programming
#include
main()
{
int x ;
for ( x=0 ; x=100 ; x++)
{
if (x%2) continue;
printf("%d\n" , x);
}
}
Output:
Program to demonstrate the working of continue statement in C programming
# include
int main()
{
int i,num,product;
for(i=1,product=1;i<=4;++i)
{
printf("Enter num%d:",i);
scanf("%d",&num);
if(num==0)
continue; / *In this program, when num equals to zero, it skips the statement
product*=num and continue the loop. */
product*=num;
}
printf("product=%d",product);
return 0;
}
Output:
Program to demonstrate the working of goto statement in C programming
#include
int main ()
{
/* local variable definition */
int a = 10;
/* do loop execution */
LOOP:do
{
if( a == 15)
{
/* skip the iteration */
a = a + 1;
goto LOOP;
}
printf("value of a: %d\n", a);
a++;
}while( a < 20 );
return 0;
}
Output:
ISE Dept., CIT, Gubbi. Page
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