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Submission #838531

# Submission time Handle Problem Language Result Execution time Memory
838531 2023-08-27T10:41:47 Z thimote75 Toy Train (IOI17_train) C++14
5 / 100
 1294 ms 1620 KB 
#include "train.h"
#include <bits/stdc++.h>

using namespace std;

using idata = vector<int>;
using bdata = vector<bool>;
using igrid = vector<idata>;

idata controller, charger;
int N, M;

igrid roads;

idata visited; int stage = 1;
idata depth;
bdata status;

pair<int, bool> dfs (int node, int _depth) {
	if (visited[node] == stage) return { depth[node], status[node] };
	depth  [node] = _depth;
	status [node] = false;
	visited[node] = stage;

	int gdepth   = controller[node] == 1 ? 1e9 : -1;
	bool rstatus = controller[node] == 0;
	for (int next : roads[node]) {
		pair<int, bool> ldata = dfs(next, _depth + 1);

		if (charger[node] && ldata.first <= depth[node]) ldata.second = true;

		if (controller[node] == 1) {
			gdepth   = min(gdepth, ldata.first);
			rstatus |= ldata.second;
		} else {
			gdepth   = max(gdepth, ldata.first);
			rstatus &= ldata.second;
		}
	}

	status[node] = rstatus;

	return { gdepth, rstatus };
}

idata who_wins(idata _controller, idata _charger, idata u, idata v) {
	N = _controller.size(); M = u.size();

	controller = _controller;
	charger    = _charger;

	roads.resize(N);

	for (int i = 0; i < M; i ++)
		roads[u[i]].push_back(v[i]);

	visited.resize(N);
	depth  .resize(N);
	status.resize(N);

	idata answer(N, false);
	for (int i = 0; i < N; i ++) {
		answer[i] = dfs(i, 0).second;
		stage ++;
	}

	return answer;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 316 ms 1364 KB Output is correct
2 Correct 77 ms 1108 KB Output is correct
3 Correct 32 ms 980 KB Output is correct
4 Correct 12 ms 912 KB Output is correct
5 Correct 6 ms 852 KB Output is correct
6 Correct 5 ms 852 KB Output is correct
7 Correct 4 ms 852 KB Output is correct
8 Correct 3 ms 852 KB Output is correct
9 Correct 3 ms 852 KB Output is correct
10 Correct 3 ms 724 KB Output is correct
11 Correct 2 ms 724 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB 3rd lines differ - on the 2nd token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 200 ms 1620 KB Output is correct
2 Correct 200 ms 1568 KB Output is correct
3 Correct 215 ms 1492 KB Output is correct
4 Correct 1281 ms 1408 KB Output is correct
5 Incorrect 916 ms 1336 KB 3rd lines differ - on the 11th token, expected: '0', found: '1'
6 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 914 ms 1212 KB 3rd lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1294 ms 1364 KB 3rd lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 316 ms 1364 KB Output is correct
2 Correct 77 ms 1108 KB Output is correct
3 Correct 32 ms 980 KB Output is correct
4 Correct 12 ms 912 KB Output is correct
5 Correct 6 ms 852 KB Output is correct
6 Correct 5 ms 852 KB Output is correct
7 Correct 4 ms 852 KB Output is correct
8 Correct 3 ms 852 KB Output is correct
9 Correct 3 ms 852 KB Output is correct
10 Correct 3 ms 724 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Incorrect 1 ms 212 KB 3rd lines differ - on the 2nd token, expected: '1', found: '0'
13 Halted 0 ms 0 KB -