解法：

#include<iostream>
#include<vector>
#include<string>
using namespace std;
int arr[100][100];
int main() {int n;cin >> n;getchar();vector<string> s(n);for (int i = 0; i < n; i++) {getline(cin, s[i]);}for (int i = 0; i < n; i++) {for (int j = 0; j < s[i].size(); j++) {if (s[i][j] >= '0' && s[i][j] <= '9') {arr[i][s[i][j]-'0'] = 1;}}}for (int i = 0; i < n; i++) {for (int j = 0; j < n; j++) {cout << arr[i][j];}cout << endl;}return 0;
}