【1035 20 字符串】 Password

传送门

题意

给定 \(n\) ，然后给定 \(n\) 组账号密码，将密码中的特殊字符替换替换规则如下

• \(1 \sim @\)
• \(0 \sim \%\)
• \(l \sim L\)
• $O \sim o $

如果修改过，将修改过的账号密码输出，如果没修改过输出特定的字符串

数据范围

\(n\leq 1000\)

题解

• 读题不仔细容易忽略的两个点
  • 只修改一个时，英文要用单数形式
  • 只需对密码做修改，账号不做修改

Code

#include <bits/stdc++.h>
using namespace std;


int main() {
	int n; cin >> n;
	int m = 0;
	vector<pair<string, string>> ans;
	for (int i = 0; i < n; i++) {
		string name, pwd; cin >> name >> pwd;
		bool modify = 0;
 		for (int j = 0; j < pwd.size(); j++) {
			if (pwd[j] == '1') pwd[j] = '@', modify = 1;
			if (pwd[j] == 'l') pwd[j] = 'L', modify = 1;
			if (pwd[j] == '0') pwd[j] = '%', modify = 1;
			if (pwd[j] == 'O') pwd[j] = 'o', modify = 1;
 		}
 		if (modify) ans.push_back({name, pwd});
	}
	if (not ans.size()) {
		if (n == 1) cout << "There is " << n << " account and no account is modified";
		else cout << "There are " << n << " accounts and no account is modified";
	} else {
		cout << ans.size() << endl;
		for (int i = 0; i < ans.size(); i++) {
			if (i) cout << endl;
			cout << ans[i].first << ' ' << ans[i].second;
		}
	}
}