ac的

#include <bits/stdc++.h>
using namespace std;
int main(){
    char a[10]{0,0,0,0,0,0,0,0,0,0};
    cin>>a[0]>>a[1]>>a[2]>>a[3]>>a[4]>>a[5]>>a[6]>>a[7]>>a[8]>>a[9];
    int b=0;
    int i=a[0];
    while(i!=0){
        i=a[b];
        b++;
    }
    b--;
    if(b==0)cout<<"No";
    else if(b==1)cout<<"Yes";
    else if(b==2){
        if(a[0]==a[1])cout<<"Yes";
        else cout<<"No";
    }
    else if(b==3){
        if(a[0]==a[2])cout<<"Yes";
        else cout<<"No";
    }
    else if(b==4){
        if(a[0]==a[3]&&a[1]==a[2])cout<<"Yes";
        else cout<<"No";
    }
    else if(b==5){
        if(a[0]==a[4]&&a[1]==a[3])cout<<"Yes";
        else cout<<"No";
    }
    else if(b==6){
        if(a[0]==a[5]&&a[1]==a[4]&&a[2]==a[3])cout<<"Yes";
        else cout<<"No";
    }
    else if(b==7){
        if(a[0]==a[6]&&a[1]==a[5]&&a[2]==a[4])cout<<"Yes";
        else cout<<"No";
    }
    else if(b==8){
        if(a[0]==a[7]&&a[1]==a[6]&&a[2]==a[5]&&a[3]==a[4])cout<<"Yes";
        else cout<<"No";
    }
    else if(b==9){
        if(a[0]==a[8]&&a[1]==a[7]&&a[2]==a[6]&&a[3]==a[5])cout<<"Yes";
        else cout<<"No";
    }
    else cout<<"No";
    return 0;
}

用if-else if-else
代码有点多，建议复制粘贴，适合新手，点个赞👍