Submission #773221

#	Time	Username	Problem	Language	Result	Execution time	Memory
773221		TheSahib	Password (RMI18_password)	C++14	50 / 100	436 ms	452 KiB

password

#include <bits/stdc++.h>

#define ll long long
#define pii pair<int, int>

using namespace std;

int cnt[30];

int query(string s);

string guess(int n, int s){
    for (char c = 'a'; c < 'a' + s; c++)
    {
        string a;
        for (int i = 0; i < n; i++)
        {
            a += c;
        }
        int b = query(a);
        cnt[c - 'a'] = b;
    }
    string ans = "";
    char c = 'a';
    for (; c < 'a' + s; c++)
    {
        if(cnt[c - 'a'] == 0) continue;
        while(cnt[c - 'a']--){
            ans += c;
        }
        c += 1;
        break;
    }
    
    for(; c < 'a' + s; c++){
        for(int i = 0; i <= ans.size() && cnt[c - 'a']; ++i){
            string z = ans;
            z.insert(z.begin() + i, c);
            int b = query(z);
            if(b == z.size()){
                ans = z;
                cnt[c - 'a']--;
            }
        }
    }
    return ans;
}

Compilation message (stderr)

password.cpp: In function 'std::string guess(int, int)':
password.cpp:36:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for(int i = 0; i <= ans.size() && cnt[c - 'a']; ++i){
      |                        ~~^~~~~~~~~~~~~
password.cpp:40:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |             if(b == z.size()){
      |                ~~^~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 30
• Subtask 5: 0 / 20