0分！

A_liusizhe @ 2024-08-15 08:43:56

#include <bits/stdc++.h>
using namespace std;
char a[12],ans1,ans2;
int sum;
int main() {
    cin>>a>>ans1;
    for(int i=1; i<=a.length(); i++) sum+=((int)a[i]-48)*i;
    ans2=(char)sum%11+'0';
    if(ans2==(char)('0'+10)) ans2='X';
    if(ans1==ans2) cout<<"Right";
    else
        cout<<a[1]<<'-'<<a[2]<<a[3]<<a[4]<<'-'<<a[5]<<a[6]<<a[7]<<a[8]<<a[9]<<'-'<<ans2;
    return 0;
}

by medal_dreams @ 2024-08-15 08:51:01

如果直接输入不应该从0开始遍历吗 @A_liusizhe

by medal_dreams @ 2024-08-15 08:58:38

你的代码改好了，应该是：

#include <bits/stdc++.h>
using namespace std;
char a[12],ans1,ans2;
int sum;
int main() {
    cin>>a;
    int k=strlen(a);
    int p=1;
    ans1=a[k-1];
    for(int i=0; i<k-1; i++) 
    if(isdigit(a[i]))
    sum+=(a[i]-'0')*p,p++;
    ans2=sum%11+'0';
    if(ans2==(char)('0'+10)) 
    ans2='X';
    if(ans1==ans2) 
    cout<<"Right";
    else
    {
        for(int i=0;i<k-1;i++)
        {
            cout<<a[i];
        }
        cout<<ans2;
    }

    return 0;
}
``` @[A_liusizhe](/user/1266815)

by medal_dreams @ 2024-08-15 09:00:24

求关

by A_liusizhe @ 2024-08-15 09:23:34

@medal_dreams 谢谢

by medal_dreams @ 2024-08-15 09:29:18

@A_liusizhe 不客气