Aritmetikai mûveletek

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
    int a,b;
    char sz[10],*token,op[5];

    while ( gets(sz) )
    {



    token = strtok(sz," ");
    a= atoi(token);

    token = strtok(NULL," ");
    strcpy(op,token);

    token = strtok(NULL," ");
    b= atoi(token);

    if ( a == 0 || b == 0 ) break;

    if ( !strcmp(op,"+") ) printf("%d\n",a+b);
    else if ( !strcmp(op,"/") ) printf("%d\n",a/b);
    else if ( !strcmp(op,"*") ) printf("%d\n",a*b);
    else if ( !strcmp(op,"-") ) printf("%d\n",a-b);
    else if ( !strcmp(op,"%") ) printf("%d\n",a%b);


    }

    return 0;
}