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if else statement

Statements under if executes only, when the given condition is true.

Otherwise, the statements under else will be executed.


When we need to decide either this or that in programming, we should go for if-else statement.

Like,

positive or negative

prime or composite

odd or even etc.



Syntax

Example

if(condition)
{
    //statements
}
else
{
    //statements 
}

Pictorial Explanation

if else statement in c



Sample Program

Get a number from user and say whether it is zero or non-zero number.

Example

#include<stdio.h>
int main()
{
    int num;
 
    scanf("%d",&num);
 
    if(num == 0) 
        printf("Zero");
    else
        printf("Non-zero");
  
    return 0;
}





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