题目描述

基本字符串

C++ 代码

#include <vector>
#include <iostream>
using namespace std;
vector<pair<string, string>> s;
int n, cnt;
int main()
{
    cin >> n;
    for (int i = 0; i < n; i ++)
    {
        bool flag = false;
        string a, b;
        cin >> a >> b;
        for (auto & c : b)
            if (c == '1') c = '@', flag = true;
            else if (c == '0') c = '%', flag = true;
            else if (c == 'l') c = 'L', flag = true;
            else if (c == 'O') c = 'o', flag = true;
        cnt += flag;
        if (flag) s.push_back({a, b});
    }
    if (cnt)
    {
        cout << cnt << endl;
        for (auto i : s)
            cout << i.first << " " << i.second << endl;
    }
    else if (n == 1) puts("There is 1 account and no account is modified");
    else cout << "There are " << n << " accounts and no account is modified";
}