链接:
http://codeforces.com/problemset/problem/570/B
http://acm.hust.edu.cn/vjudge/contest/view.action?cid=87813#problem/I
代码:
#include<stdio.h>
#include<string.h> #define N 1100 int main()
{
int n, m;
while(scanf("%d%d", &n, &m)!=EOF)
{
if(n==) ///只有1,他只能输了
{
printf("1\n");
continue;
}
if(m>n/)
printf("%d\n", m-);
else
printf("%d\n", m+);
}
return ;
}