PAT 甲级 1061 Dating

PAT 甲级 1061 Dating

注意不能用isupper，因为不是所有大写字母都有效。

#include<bits/stdc++.h>
using namespace std;
map<char, string> which_day_in_a_week{
    
    
    {
    
    'A',"MON"},{
    
    'B',"TUE"},{
    
    'C',"WED"},{
    
    'D',"THU"},{
    
    'E',"FRI"},{
    
    'F',"SAT"},{
    
    'G',"SUN"}
};
map<char, string> hh{
    
    
    {
    
    '0',"00"},{
    
    '1',"01"},{
    
    '2',"02"},{
    
    '3',"03"},{
    
    '4',"04"},{
    
    '5',"05"},{
    
    '6',"06"},
    {
    
    '7',"07"},{
    
    '8',"08"},{
    
    '9',"09"},{
    
    'A',"10"},{
    
    'B',"11"},{
    
    'C',"12"},{
    
    'D',"13"},
    {
    
    'E',"14"},{
    
    'F',"15"},{
    
    'G',"16"},{
    
    'H',"17"},{
    
    'I',"18"},{
    
    'J',"19"},{
    
    'K',"20"},
    {
    
    'L',"21"},{
    
    'M',"22"},{
    
    'N',"23"}
};
 
int main()
{
    
    
#ifdef LOCAL
    freopen("input.txt", "r", stdin);//freopen("output.txt", "w", stdout);
#endif
    string s1, s2, s3, s4; cin >> s1 >> s2 >> s3 >> s4;
    int sz1 = (s1.size() < s2.size() ? s1.size() : s2.size());
    int i = 0;
    //星期
    for (i = 0; i < sz1; ++i) {
    
    
        if (s1[i] == s2[i] && s1[i] >= 'A'&&s1[i] <= 'G') {
    
    
            cout << which_day_in_a_week[s1[i]] << " ";
            break;
        }
    }
    //小时
    ++i;
    for (; i < sz1; ++i) {
    
    
        if (s1[i] == s2[i] && (isdigit(s1[i]) || (s1[i] >= 'A' && s1[i] <= 'N'))) {
    
    
            cout << hh[s1[i]] << ":";
                break;
        }
    }
    //分钟
    int sz2 = (s3.size() < s4.size() ? s3.size() : s4.size());
    for (int i = 0; i < sz2; ++i) {
    
    
        if (s3[i] == s4[i] && isalpha(s3[i])) {
    
    
            printf("%02d\n", i);
            break;
        }
    }
}