@[xieyuanxi](/user/1011874) 不难，可以自己理解一下
```
#include<bits/stdc++.h>
using namespace std;
string s;
long long cnt,v;
int main(){
cin>>s;
for(int i=0;i<s.length()-1;i++){
if(s[i]>='0' && s[i]<='9'){
v++;
cnt+=(s[i]-'0')*v;
}
}
if(cnt%11==s[s.length()-1]-'0' || (cnt%11==10 && s[s.length()-1]=='X')) cout<<"Right";
else{
for(int i=0;i<s.length()-1;i++){
cout<<s[i];
}
if(cnt%11==10){
cout<<'X';
return 0;
}
cout<<cnt%11;
}
return 0;
}
```
求关！！！
by liu_le_chen @ 2023-09-14 21:35:14
接楼上，确实。
```cpp
#include <bits/stdc++.h>
using namespace std;
int main() {
char s[20];
cin >> s;
int len = strlen(s), cnt = 0, k = 1;
for (int i = 0; i < len - 2; i++) {
if (s[i] != '-') {
cnt += k * (s[i] - '0');
k++;
}
}
cnt %= 11;
char c = cnt + '0';
if (cnt == 10) {
c = 'X';
}
if (s[len - 1] == c) {
cout << "Right";
} else {
s[len - 1] = 0;
cout << s;
cout << c;
}
return 0;
}
```
by AK_CSPj @ 2023-09-14 21:51:19
ok，把条件判断改了ac了，wssb
by GuiyuanCo @ 2023-09-14 21:52:50
@[GuiyuanCo](/user/1011874) 可以问一下是什么条件吗 aaaa还是过不去不知道为什么
by rrrstj @ 2024-04-14 02:06:16
@[GuiyuanCo](/user/1011874) ```cpp
```
#include<iostream>
#include<cstring>
using namespace std;
int main(){
string c;
cin>>c;
int len = c.length();
int count = 0;
int j = 1;
for(int i = 0; i < len-2; i++){
if(c[i] == '-'){
continue;
}
else {
count += (c[i] - '0')*j;
j++;
}
}
count = count%11;
if((c[len-1] == 'X' && count == 10)){
cout<<"Right"<<endl;
}
else if(c[len-1]-'0'== count) {
cout<<"Right"<<endl;
}
else if(count == 10){
c[len-1] = 'X';
}
else {
c[len-1] = count +'0';
cout<<c<<endl;
}
return 0;
}
by rrrstj @ 2024-04-14 02:08:59