易百教程

#include <stdio.h>

int main() {

   int a, b, c;

   a = 10;
   b = 20;

   c = a + b;   
   printf( "Value of c = %d\n", c);

   c = a - b;   
   printf( "Value of c = %d\n", c);

   c = a * b;   
   printf( "Value of c = %d\n", c);

   c = b / a;   
   printf( "Value of c = %d\n", c);

   c = b % a;   
   printf( "Value of c = %d\n", c);
}