5

Conditional instructions

The modulo operator and conditions  |  Boolean expressions

compare.c
  1. #include <stdlib.h>
  2. #include <stdio.h>
  3.  
  4. int main() {
  5.     int i1, i2;
  6.  
  7.     printf( "Enter 2 integers: " );
  8.  
  9.     if ( scanf("%d %d", &i1, &i2 ) == 2 )
  10.         if ( i1 < i2 )
  11.             printf("%d < %d\n", i1, i2 );
  12.         else if ( i1 > i2 )
  13.             printf("%d > %d\n", i1, i2 );
  14.         else
  15.             printf("%d = %d\n", i1, i2 );
  16.  
  17.     exit( 0 );
  18. }
$ gcc -o compare compare.c
$ ./compare
Enter 2 integers: 1 2
1 < 2
$ ./compare
Enter 2 integers: -1 -2
-1 > -2
$ ./compare
Enter 2 integers: 0 0
0 = 0

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