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Submission #332529

# Submission time Handle Problem Language Result Execution time Memory
332529 2020-12-02T19:27:21 Z xt0r3 Password (RMI18_password) C++14
40 / 100
 102 ms 620 KB 
#include<bits/stdc++.h>
using namespace std;

int query(string str);

string merge(vector<string>& sol, int lo, int hi){
	if(lo == hi) return sol[lo];
	int mi = (lo + hi) / 2;
	string s1 = merge(sol, lo, mi), s2 = merge(sol, mi + 1, hi), res = "";
	int curr = 0, dex = 0;
	while(curr < (int)s1.size() && dex < (int)s2.size()){
		if(query(res + s2[dex] + s1.substr(curr)) == (int)res.size() + (int)s1.size() - curr + 1) res += s2[dex++];
		else res += s1[curr++];
	}
	return res + s1.substr(curr) + s2.substr(dex);
}

string guess(int n, int s){
	vector<string> sol(26, "");
	for(int i = 0; i < s; i++){
        string ss(n, 'a' + i);
		sol[i].assign(query(ss), 'a' + i);
	}
	return merge(sol, 0, s - 1);
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Guessed the password with 60 queries.
2 Runtime error 1 ms 364 KB Execution killed with signal 13 (could be triggered by violating memory limits)

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Guessed the password with 48 queries.
2 Correct 1 ms 364 KB Guessed the password with 116 queries.
3 Correct 2 ms 364 KB Guessed the password with 91 queries.
4 Correct 5 ms 364 KB Guessed the password with 198 queries.

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 420 KB Guessed the password with 3455 queries.
2 Correct 49 ms 364 KB Guessed the password with 5024 queries.
3 Correct 78 ms 492 KB Guessed the password with 6353 queries.
4 Correct 102 ms 620 KB Guessed the password with 8694 queries.

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Guessed the password with 60 queries.
2 Runtime error 1 ms 364 KB Execution killed with signal 13 (could be triggered by violating memory limits)

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Guessed the password with 60 queries.
2 Runtime error 1 ms 364 KB Execution killed with signal 13 (could be triggered by violating memory limits)