LYDSY 1432
题目大意
暂无
题目解法
暂无
RTFC
#include <cstdio>
int main()
{
int n, k;
scanf("%d%d", &n, &k);
printf("%d", (n == 1) ? 1 : (k < n - k + 1 ? k : n - k + 1) << 1);
}
暂无
暂无
#include <cstdio>
int main()
{
int n, k;
scanf("%d%d", &n, &k);
printf("%d", (n == 1) ? 1 : (k < n - k + 1 ? k : n - k + 1) << 1);
}