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📂 ぶんかつ

💡 に答える

💻 コード#コード#

#include <bits/stdc++.h>

using namespace std;

bool solution(vector<string> phone_book) {
    sort(phone_book.begin(), phone_book.end());
    for (int i = 0; i < phone_book.size() - 1; i++) {
        if (phone_book[i] == phone_book[i + 1].substr(0, phone_book[i].length()))
            return false;
    }
    return true;
}

import java.util.*;

class Solution {
    public boolean solution(String[] phone_book) {
        Arrays.sort(phone_book);
        for (int i = 0; i < phone_book.length - 1; i++) {
            if (phone_book[i + 1].startsWith(phone_book[i]))
                return false;
        }
        return true;
    }
}