!=  Relational Operators in C, Checks if the values of two operands are equal or not. If values are not equal then the condition becomes true.

C Programming Language Operators and Enums in C Language (Article) Operators and Enums in C Language (Program)

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Program:

#include"stdio.h"
void main()
{
   int a = 21;
   int b = 10;
   int c ;

   if( a != b ) {
      printf("a is not equal to b \n" );
   }
   else {
      printf("a is equal to b \n" );
   }
}

Output:

a is not equal to b
Press any key to continue . . .

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