CCF-CAP 201312-2 ISBN号码 答案

#include <iostream>

using namespace std;

int main()
{
int s[15];
char str[15];
for (int i=0,j=0;i<13;i++){
cin >> str[i];
if (str[i] != '-'){
if (str[i] == 'X')
s[j] = 10;
else
s[j]= str[i] - '0';
j++;
}
}
int su=0;
for (int i=0;i<9;i++){
su+=s[i]*(i+1);
}
int mo;
mo=su%11;
if (mo == s[9])
cout << "Right" << endl;
else {
for (int i=0;i<12;i++)
cout << str[i];
if (mo == 10)
cout << 'X' << endl;
else
cout << mo << endl;
}
return 0;
}