B2074 计算星期几 - 洛谷

代码区：

#include<algorithm>
#include<iostream>
#include<unordered_map>
#include<string>
using namespace std;
int main() {unordered_map<int, string> m = { { 1,"Monday" },{2,"Tuesday"},{3,"Wednesday"},{4,"Thursday"},{5,"Friday"},{6,"Saturday"},{0,"Sunday"}};int a, b;cin >> a >> b;int t = 1;int sum = 0;for (int i = 1; i <= b; i++) {sum = t * a % 7;t = t * a % 7;}auto it= m.find(sum%7);if ( it != m.end()) {cout << it->second;}return 0;}

欢迎各位读者提出意见。

（菜菜奋斗小日记）