C语言嵌套if语句

#include <stdio.h>

int main () {

   /* local variable definition */
   int a = 100;
   int b = 200;

   /* check the boolean condition */
   if( a == 100 ) {

      /* if condition is true then check the following */
      if( b == 200 ) {
         /* if condition is true then print the following */
         printf("Value of a is 100 and b is 200/n" );
      }
   }

   printf("Exact value of a is : %d/n", a );
   printf("Exact value of b is : %d/n", b );

   return 0;
}