PAT甲题题解-1061. Dating (20)-字符串处理，水水

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <string.h>
using namespace std;
const int maxn=100;
char s1[maxn],s2[maxn],s3[maxn],s4[maxn];
int a,b,c;
char week[7][10]={"MON","TUE","WED","THU","FRI","SAT","SUN"};
int main()
{
    scanf("%s %s %s %s",s1,s2,s3,s4);
    int len1=strlen(s1);
    int len2=strlen(s2);
    int l12=min(len1,len2);
    int len3=strlen(s3);
    int len4=strlen(s4);
    int l34=min(len3,len4);
    int idx=0;
    for(int i=0;i<l12;i++){
        if(s1[i]==s2[i] && s1[i]>='A' && s1[i]<='G'){
            a=s1[i]-'A';
            idx=i;
            break;
        }
    }
    for(int i=idx+1;i<l12;i++){
        if(s1[i]==s2[i]){
            if(s1[i]>='A' && s1[i]<='N'){
                b=s1[i]-'A'+10;
                break;
            }
            else if(s1[i]>='0' && s1[i]<='9'){
                b=s1[i]-'0';
                break;
            }
        }
    }
    for(int i=0;i<l34;i++){
        if(s3[i]==s4[i] && ((s3[i]>='A'&&s3[i]<='Z')||(s3[i]>='a'&&s3[i]<='z'))){
            c=i;
            break;
        }
    }
    printf("%s %02d:%02d",week[a],b,c);
    return 0;
}