1061. Dating.cpp

#include <bits/stdc++.h>
using namespace std;
using gg = long long;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout << setfill('0');  //输出用字符0填充
    // ABCDEFG七个字符到星期的映射
    unordered_map<char, string> week = {
        {'A', "MON"}, {'B', "TUE"}, {'C', "WED"}, {'D', "THU"},
        {'E', "FRI"}, {'F', "SAT"}, {'G', "SUN"}};
    // 0~9、A~N到小时的映射
    unordered_map<char, gg> hour;
    for (gg i = 0; i < 24; ++i)
        hour.insert({i < 10 ? i + '0' : i - 10 + 'A', i});
    string s1, s2;
    cin >> s1 >> s2;
    for (gg i = 0, c = 0; i < min(s1.size(), s2.size()); ++i) {
        if (s1[i] == s2[i] and c == 0 and week.count(s1[i])) {
            cout << week[s1[i]] << " ";
            ++c;
        } else if (s1[i] == s2[i] and c == 1 and hour.count(s1[i])) {
            cout << setw(2) << hour[s1[i]] << ':';
            ++c;
        }
    }
    cin >> s1 >> s2;
    for (gg i = 0, c = 0; i < min(s1.size(), s2.size()); ++i) {
        if (s1[i] == s2[i] and isalpha(s1[i])) {
            cout << setw(2) << i;
            break;
        }
    }
    return 0;
}