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Submission #674446

# Submission time Handle Problem Language Result Execution time Memory
674446 2022-12-24T09:03:24 Z QwertyPi Mouse (info1cup19_mouse) C++14
13 / 100
 18 ms 208 KB 
#include <bits/stdc++.h>
using namespace std;

#ifndef TEST
#include "grader.h"
int query(vector<int> q);
#else
vector<int> p;

int qc = 0;
int query(vector<int> q){
	qc++;
	int cnt = 0;
	int n = p.size();
	for(int i = 0; i < n; i++){
		if(p[i] == q[i]) cnt++;
	}
	return cnt;
}
#endif

void solve(int N){
	vector<int> a;
	mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
	for(int i = 1; i <= N; i++){
		a.push_back(i);
	}
	for(int i = 0; i < N; i++){
		swap(a[i], a[rng() % (i + 1)]);
	}
	int qry = 0;
	for(int i = 0; i < N; i++){
		for(int j = i + 1; j < N; j++){
			swap(a[i], a[j]);
			int new_qry = query(a);
			if(new_qry == N) return;
			if(new_qry < qry) swap(a[i], a[j]);
			else qry = new_qry;
		}
	}
}

#ifdef TEST
int main(){
	int N; cin >> N; p.resize(N);
	for(int i = 0; i < N; i++) cin >> p[i];
	solve(N);
	cout << qc << endl;
}
#endif

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Correct! Number of queries: 8
2 Correct 0 ms 208 KB Correct! Number of queries: 4
3 Correct 0 ms 208 KB Correct! Number of queries: 14
4 Correct 1 ms 208 KB Correct! Number of queries: 17
5 Correct 1 ms 208 KB Correct! Number of queries: 20
6 Correct 1 ms 208 KB Correct! Number of queries: 15

Subtask #2
0.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Correct! Number of queries: 8
2 Correct 0 ms 208 KB Correct! Number of queries: 4
3 Correct 0 ms 208 KB Correct! Number of queries: 14
4 Correct 1 ms 208 KB Correct! Number of queries: 17
5 Correct 1 ms 208 KB Correct! Number of queries: 20
6 Correct 1 ms 208 KB Correct! Number of queries: 15
7 Correct 13 ms 208 KB Correct! Number of queries: 1200
8 Correct 16 ms 208 KB Correct! Number of queries: 1200
9 Correct 13 ms 208 KB Correct! Number of queries: 1000
10 Correct 18 ms 208 KB Correct! Number of queries: 1200
11 Correct 9 ms 208 KB Correct! Number of queries: 900
12 Correct 13 ms 208 KB Correct! Number of queries: 1200
13 Correct 7 ms 208 KB Correct! Number of queries: 1100
14 Incorrect 17 ms 208 KB Unexpected end of file - int32 expected
15 Halted 0 ms 0 KB -

Subtask #3
0.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Correct! Number of queries: 8
2 Correct 0 ms 208 KB Correct! Number of queries: 4
3 Correct 0 ms 208 KB Correct! Number of queries: 14
4 Correct 1 ms 208 KB Correct! Number of queries: 17
5 Correct 1 ms 208 KB Correct! Number of queries: 20
6 Correct 1 ms 208 KB Correct! Number of queries: 15
7 Correct 13 ms 208 KB Correct! Number of queries: 1200
8 Correct 16 ms 208 KB Correct! Number of queries: 1200
9 Correct 13 ms 208 KB Correct! Number of queries: 1000
10 Correct 18 ms 208 KB Correct! Number of queries: 1200
11 Correct 9 ms 208 KB Correct! Number of queries: 900
12 Correct 13 ms 208 KB Correct! Number of queries: 1200
13 Correct 7 ms 208 KB Correct! Number of queries: 1100
14 Incorrect 17 ms 208 KB Unexpected end of file - int32 expected
15 Halted 0 ms 0 KB -