NOIP2017初赛阅读程序写结果第4题题解

NOIP2017初赛阅读程序写结果第4题题解

#include<iostream> using namespace std; int main() { int n, m; cin >> n >> m; int x = 1; int y = 1; int dx = 1; int dy = 1; int cnt = 0; while (cnt != 2) { cnt = 0; x = x + dx; y = y + dy; if (x == 1 || x == n) { ++cnt; dx = -dx; } if (y == 1 || y == m) { ++cnt; dy = -dy; } } cout << x << " " << y << endl; return 0; }

输入 1：4 3
输出 1：_________
输入 2：2017 1014
输出 2：_________

1.我们称一次

cnt = 0; x = x + dx; y = y + dy; if (x == 1 || x == n) { ++cnt; dx =1234567