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Submission #150672

# Submission time Handle Problem Language Result Execution time Memory
150672 2019-09-01T08:48:20 Z Ian and 2-bit memory(#3648, percywtc, nhho, ulna) On the Grid (FXCUP4_grid) C++17
12 / 100
 14 ms 384 KB 
#include "grid.h"
#include <bits/stdc++.h>
using namespace std;

const int TRIALS = 5;

bool check(int N, int target_stick, int target_level, vector<int> undetermined, vector<int>& determined) {
	for (int t = 0; t < TRIALS; t++) {
		vector<int> p(1, target_stick);
		random_shuffle(undetermined.begin(), undetermined.end());

		for (int elm : undetermined) {
			if (elm != target_stick) {
				p.push_back(elm);
			}
		}
		for (int elm : determined) {
			p.push_back(elm);
		}

		int verdict = PutDisks(p);
		if (verdict < target_level + N - 1) {
			return false;
		}
	}

	return true;
}

vector<int> L;

bool cmp(int u, int v) {
	return L[u] < L[v];
}

vector<int> SortDisks(int N) {
	L = vector<int>(N, 0);

	srand(882);

	for (int i = N; i >= 1; i--) {
		vector<int> determined, undetermined;
		for (int i = 0; i < N; i++) {
			if (L[i]) {
				determined.push_back(i);
			} else {
				undetermined.push_back(i);
			}
		}

		sort(determined.begin(), determined.end(), cmp);

		random_shuffle(undetermined.begin(), undetermined.end());
		for (int elm : undetermined) {
			if (check(N, elm, i, undetermined, determined)) {
				L[elm] = i;
				break;
			}
		}
	}

	return L;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 6 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 7 ms 256 KB Output is correct
5 Correct 7 ms 384 KB Output is correct
6 Correct 7 ms 384 KB Output is correct
7 Correct 7 ms 384 KB Output is correct
8 Correct 7 ms 256 KB Output is correct

Subtask #2
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 6 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 7 ms 256 KB Output is correct
5 Correct 7 ms 384 KB Output is correct
6 Correct 7 ms 384 KB Output is correct
7 Correct 7 ms 384 KB Output is correct
8 Correct 7 ms 256 KB Output is correct
9 Incorrect 14 ms 384 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #3
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 6 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 7 ms 256 KB Output is correct
5 Correct 7 ms 384 KB Output is correct
6 Correct 7 ms 384 KB Output is correct
7 Correct 7 ms 384 KB Output is correct
8 Correct 7 ms 256 KB Output is correct
9 Incorrect 14 ms 384 KB Output isn't correct
10 Halted 0 ms 0 KB -