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Submission #496286

# Submission time Handle Problem Language Result Execution time Memory
496286 2021-12-21T04:56:16 Z triplem5ds Password (RMI18_password) C++14
30 / 100
 177 ms 472 KB 
/// Zengy MANGA
#pragma GCC optimize("O3")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("avx,avx2,fma")

#include "bits/stdc++.h"

using namespace std;

#define pb push_back
#define F first
#define S second
#define f(i, a, b)  for(int i = a; i < b; i++)
#define all(a)  a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define sz(x) (int)(x).size()
#define mp(x,y) make_pair(x,y)
#define popCnt(x) (__builtin_popcountll(x))

using ll = long long;
using ii = pair<int,int>;
using ull = unsigned long long;
using db = long double;

const int N = 2e5+5, LG = 18, MOD = 998244353;
const long double PI = acos(-1);

int query(string s);

string guess(int n, int s) {
    string ans = "";
    for(char c = 'a'; c < 'a'+s; c++) {
        for(int j = 0; ans.size() != n && j <= ans.size(); j++) {
            if(query(ans.substr(0,j)+string(1,c)+ans.substr(j)) > ans.size()) {
                ans = ans.substr(0,j)+string(1,c)+ans.substr(j);
            }
        }
    }
    return ans;
}

Compilation message

password.cpp: In function 'std::string guess(int, int)':
password.cpp:33:35: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   33 |         for(int j = 0; ans.size() != n && j <= ans.size(); j++) {
      |                        ~~~~~~~~~~~^~~~
password.cpp:33:45: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |         for(int j = 0; ans.size() != n && j <= ans.size(); j++) {
      |                                           ~~^~~~~~~~~~~~~
password.cpp:34:65: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |             if(query(ans.substr(0,j)+string(1,c)+ans.substr(j)) > ans.size()) {
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 200 KB Guessed the password with 133 queries.
2 Correct 3 ms 200 KB Guessed the password with 294 queries.

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 200 KB Guessed the password with 71 queries.
2 Correct 2 ms 280 KB Guessed the password with 166 queries.
3 Runtime error 1 ms 288 KB Execution killed with signal 13
4 Halted 0 ms 0 KB -

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 340 KB Guessed the password with 4807 queries.
2 Correct 79 ms 328 KB Guessed the password with 10754 queries.
3 Correct 131 ms 348 KB Guessed the password with 14365 queries.
4 Correct 177 ms 472 KB Guessed the password with 20878 queries.

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 200 KB Guessed the password with 133 queries.
2 Correct 3 ms 200 KB Guessed the password with 294 queries.
3 Correct 2 ms 200 KB Guessed the password with 71 queries.
4 Correct 2 ms 280 KB Guessed the password with 166 queries.
5 Runtime error 1 ms 288 KB Execution killed with signal 13
6 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 200 KB Guessed the password with 133 queries.
2 Correct 3 ms 200 KB Guessed the password with 294 queries.
3 Correct 2 ms 200 KB Guessed the password with 71 queries.
4 Correct 2 ms 280 KB Guessed the password with 166 queries.
5 Runtime error 1 ms 288 KB Execution killed with signal 13
6 Halted 0 ms 0 KB -