HDU 1014 Uniform Generator

这么长的题目......就是判断两个数最大公约数是否为1......

感觉只是在考格式控制符......%10d

#include<stdio.h>int gcd(int x, int y) {  return y?gcd(y,x%y):x;}int main(void){  int n, m;  while (scanf("%d %d", &n, &m) != EOF) {    if (gcd(n, m) == 1) {      printf("%10d%10d    Good Choice\n\n", n, m);    } else {      printf("%10d%10d    Bad Choice\n\n", n, m);    }  }  return 0;}