oj.uz

Submission #834317

# Submission time Handle Problem Language Result Execution time Memory
834317 2023-08-22T12:59:56 Z KoD Toy Train (IOI17_train) C++17
100 / 100
 698 ms 1320 KB 
#include "train.h"

#include <array>
#include <algorithm>
#include <numeric>
#include <utility>
#include <iterator>
#include <iostream>
#include <cassert>
#include <tuple>
#include <string>
#include <set>
#include <vector>
#include <queue>
#include <map>

using std::array;
using std::tuple;
using std::pair;
using std::vector;
using std::string;

using ll = long long;
constexpr int inf = (1 << 30) - 1;
constexpr ll infll = (1ll << 62) - 1;

template <class T> bool setmin(T& x, const T& y) { return x > y && (x = y, true); }
template <class T> bool setmax(T& x, const T& y) { return x < y && (x = y, true); }

template <class F> struct make_fixed : private F {
    explicit make_fixed(F&& f) : F(std::forward<F>(f)) {}
    template <class... Args> decltype(auto) operator()(Args&&... args) const {
        return F::operator()(*this, std::forward<Args>(args)...);
    }
};

vector<int> who_wins(vector<int> A, vector<int> R, vector<int> U, vector<int> V) {
	const int N = (int)A.size();
	const int M = (int)U.size();
	vector<int> ans(N);
	vector<char> alive(N, true);
	vector<vector<int>> rG(N);
	for (int i = 0; i < M; ++i) {
		rG[V[i]].push_back(U[i]);
	}
	const auto bfs = [&](vector<int> set, int type) {
		vector<int> deg(N);
		for (int i = 0; i < M; ++i) {
			int u = U[i], v = V[i];
			if (alive[u] && alive[v]) {
				deg[u] += 1;
			}
		}
		vector<char> reach(N);
		std::queue<int> que;
		for (const int u : set) {
			reach[u] = true;
			que.push(u);
		}
		while (!que.empty()) {
			const int u = que.front();
			que.pop();
			for (const int v : rG[u]) {
				if (!alive[v] || reach[v]) continue;
				if (A[v] == type) {
					reach[v] = true;
					que.push(v);
				} else if (--deg[v] == 0) {
					reach[v] = true;
					que.push(v);
				}
			}
		}
		return reach;
	};
	while (std::any_of(alive.begin(), alive.end(), [](bool b) { return b; })) {
		vector<int> s;
		for (int i = 0; i < N; ++i) {
			if (alive[i] && R[i]) {
				s.push_back(i);
			}
		}
		auto s2 = bfs(std::move(s), 1);
		vector<int> t;
		for (int i = 0; i < N; ++i) {
			if (alive[i] && !s2[i]) {
				t.push_back(i);
			}
		}
		if (t.empty()) {
			for (int i = 0; i < N; ++i) {
				if (alive[i]) {
					ans[i] = 1;
					alive[i] = false;
				}
			}
			break;
		}
		auto t2 = bfs(std::move(t), 0);
		for (int i = 0; i < N; ++i) {
			if (t2[i]) {
				alive[i] = false;
			}
		}
	}
	return ans;
}

#ifndef EVAL
#include "grader.cpp"
#endif

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 724 KB Output is correct
2 Correct 5 ms 724 KB Output is correct
3 Correct 4 ms 772 KB Output is correct
4 Correct 4 ms 724 KB Output is correct
5 Correct 3 ms 724 KB Output is correct
6 Correct 3 ms 724 KB Output is correct
7 Correct 3 ms 724 KB Output is correct
8 Correct 3 ms 724 KB Output is correct
9 Correct 5 ms 724 KB Output is correct
10 Correct 3 ms 724 KB Output is correct
11 Correct 3 ms 724 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 1084 KB Output is correct
2 Correct 141 ms 1084 KB Output is correct
3 Correct 181 ms 1104 KB Output is correct
4 Correct 5 ms 980 KB Output is correct
5 Correct 8 ms 1100 KB Output is correct
6 Correct 7 ms 980 KB Output is correct
7 Correct 6 ms 1044 KB Output is correct
8 Correct 5 ms 1108 KB Output is correct
9 Correct 6 ms 984 KB Output is correct
10 Correct 5 ms 980 KB Output is correct
11 Correct 6 ms 980 KB Output is correct
12 Correct 4 ms 980 KB Output is correct
13 Correct 6 ms 980 KB Output is correct
14 Correct 7 ms 980 KB Output is correct
15 Correct 5 ms 980 KB Output is correct
16 Correct 5 ms 980 KB Output is correct
17 Correct 6 ms 980 KB Output is correct
18 Correct 350 ms 884 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 980 KB Output is correct
2 Correct 5 ms 980 KB Output is correct
3 Correct 5 ms 976 KB Output is correct
4 Correct 5 ms 980 KB Output is correct
5 Correct 6 ms 980 KB Output is correct
6 Correct 6 ms 996 KB Output is correct
7 Correct 5 ms 968 KB Output is correct
8 Correct 5 ms 980 KB Output is correct
9 Correct 5 ms 980 KB Output is correct
10 Correct 6 ms 1088 KB Output is correct
11 Correct 6 ms 1004 KB Output is correct
12 Correct 7 ms 1060 KB Output is correct
13 Correct 6 ms 1100 KB Output is correct
14 Correct 6 ms 980 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 1004 KB Output is correct
2 Correct 5 ms 1032 KB Output is correct
3 Correct 6 ms 984 KB Output is correct
4 Correct 5 ms 988 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 3 ms 724 KB Output is correct
7 Correct 3 ms 724 KB Output is correct
8 Correct 4 ms 704 KB Output is correct
9 Correct 4 ms 716 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 3 ms 596 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 724 KB Output is correct
2 Correct 5 ms 724 KB Output is correct
3 Correct 4 ms 772 KB Output is correct
4 Correct 4 ms 724 KB Output is correct
5 Correct 3 ms 724 KB Output is correct
6 Correct 3 ms 724 KB Output is correct
7 Correct 3 ms 724 KB Output is correct
8 Correct 3 ms 724 KB Output is correct
9 Correct 5 ms 724 KB Output is correct
10 Correct 3 ms 724 KB Output is correct
11 Correct 3 ms 724 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 70 ms 1084 KB Output is correct
33 Correct 141 ms 1084 KB Output is correct
34 Correct 181 ms 1104 KB Output is correct
35 Correct 5 ms 980 KB Output is correct
36 Correct 8 ms 1100 KB Output is correct
37 Correct 7 ms 980 KB Output is correct
38 Correct 6 ms 1044 KB Output is correct
39 Correct 5 ms 1108 KB Output is correct
40 Correct 6 ms 984 KB Output is correct
41 Correct 5 ms 980 KB Output is correct
42 Correct 6 ms 980 KB Output is correct
43 Correct 4 ms 980 KB Output is correct
44 Correct 6 ms 980 KB Output is correct
45 Correct 7 ms 980 KB Output is correct
46 Correct 5 ms 980 KB Output is correct
47 Correct 5 ms 980 KB Output is correct
48 Correct 6 ms 980 KB Output is correct
49 Correct 350 ms 884 KB Output is correct
50 Correct 4 ms 980 KB Output is correct
51 Correct 5 ms 980 KB Output is correct
52 Correct 5 ms 976 KB Output is correct
53 Correct 5 ms 980 KB Output is correct
54 Correct 6 ms 980 KB Output is correct
55 Correct 6 ms 996 KB Output is correct
56 Correct 5 ms 968 KB Output is correct
57 Correct 5 ms 980 KB Output is correct
58 Correct 5 ms 980 KB Output is correct
59 Correct 6 ms 1088 KB Output is correct
60 Correct 6 ms 1004 KB Output is correct
61 Correct 7 ms 1060 KB Output is correct
62 Correct 6 ms 1100 KB Output is correct
63 Correct 6 ms 980 KB Output is correct
64 Correct 7 ms 1004 KB Output is correct
65 Correct 5 ms 1032 KB Output is correct
66 Correct 6 ms 984 KB Output is correct
67 Correct 5 ms 988 KB Output is correct
68 Correct 1 ms 344 KB Output is correct
69 Correct 3 ms 724 KB Output is correct
70 Correct 3 ms 724 KB Output is correct
71 Correct 4 ms 704 KB Output is correct
72 Correct 4 ms 716 KB Output is correct
73 Correct 1 ms 348 KB Output is correct
74 Correct 3 ms 596 KB Output is correct
75 Correct 122 ms 1096 KB Output is correct
76 Correct 167 ms 1200 KB Output is correct
77 Correct 200 ms 1320 KB Output is correct
78 Correct 199 ms 1320 KB Output is correct
79 Correct 199 ms 1312 KB Output is correct
80 Correct 7 ms 1208 KB Output is correct
81 Correct 6 ms 1244 KB Output is correct
82 Correct 6 ms 1212 KB Output is correct
83 Correct 8 ms 1208 KB Output is correct
84 Correct 7 ms 1280 KB Output is correct
85 Correct 7 ms 1248 KB Output is correct
86 Correct 8 ms 1248 KB Output is correct
87 Correct 5 ms 1212 KB Output is correct
88 Correct 9 ms 1244 KB Output is correct
89 Correct 7 ms 1208 KB Output is correct
90 Correct 14 ms 1204 KB Output is correct
91 Correct 14 ms 1240 KB Output is correct
92 Correct 25 ms 1208 KB Output is correct
93 Correct 24 ms 1252 KB Output is correct
94 Correct 30 ms 1236 KB Output is correct
95 Correct 30 ms 1224 KB Output is correct
96 Correct 80 ms 1192 KB Output is correct
97 Correct 457 ms 1296 KB Output is correct
98 Correct 662 ms 1260 KB Output is correct
99 Correct 698 ms 1264 KB Output is correct
100 Correct 329 ms 1016 KB Output is correct