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Submission #439456

# Submission time Handle Problem Language Result Execution time Memory
439456 2021-06-30T03:54:04 Z flappybird Toy Train (IOI17_train) C++14
100 / 100
 695 ms 1856 KB 
#include "train.h"

#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx,avx2,fma")

using namespace std;
typedef int ll;

#define MAX 6000

vector<ll> A, s;
ll N, M;
vector<ll> adj[MAX], rev[MAX], deg, d;
ll mp[MAX][MAX];

std::vector<int> who_wins(std::vector<int> a, std::vector<int> r, std::vector<int> u, std::vector<int> v) {
	ll i;
	A = a;
	N = a.size();
	M = u.size();
	vector<ll> res, ans;
	ans.resize(N);
	for (i = 0; i < N; i++) if (r[i]) s.push_back(i);
	for (i = 0; i < M; i++) adj[u[i]].push_back(v[i]), rev[v[i]].push_back(u[i]);
	d.resize(N);
	deg.resize(N);
	res.resize(N);
	ll T;
	for (T = 1; T <= N; T++) {
		bool chk = true;
		for (i = 0; i < N; i++) {
			res[i] = 0;
			d[i] = 0;
			deg[i] = 0;
			if (ans[i]) continue;
			for (auto x : adj[i]) {
				if (ans[x]) continue;
				d[i]++;
				deg[i]++;
			}
		}
		queue<ll> q;
		for (auto st : s) {
			if (ans[st]) continue;
			q.push(st);
			res[st] = 1;
		}
		ll j;
		while (!q.empty()) {
			ll t = q.front();
			q.pop();
			for (auto x : rev[t]) {
				if (ans[x]) continue;
				if (res[x]) continue;
				deg[x]--;
				if (a[x]) q.push(x), res[x] = 1;
				else if (deg[x] <= 0) q.push(x), res[x] = 1;
			}
		}
		//impossible
		deg = d;
		vector<ll> imp;
		for (i = 0; i < N; i++) if (!res[i]) imp.push_back(i);
		while (!q.empty()) q.pop();
		for (auto st : imp) {
			if (ans[st]) continue;
			q.push(st);
			ans[st] = 1;
			chk = false;
		}
		while (!q.empty()) {
			ll t = q.front();
			q.pop();
			for (auto x : rev[t]) {
				if (ans[x]) continue;
				deg[x]--;
				if (!a[x]) q.push(x), ans[x] = 1, chk = false;
				else if (deg[x] <= 0) q.push(x), ans[x] = 1, chk = false;
			}
		}
		if (chk) break;
	}
	for (i = 0; i < N; i++) ans[i] = !ans[i];
	return ans;
}

Compilation message

train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:51:6: warning: unused variable 'j' [-Wunused-variable]
   51 |   ll j;
      |      ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1228 KB Output is correct
2 Correct 7 ms 1228 KB Output is correct
3 Correct 8 ms 1232 KB Output is correct
4 Correct 7 ms 1228 KB Output is correct
5 Correct 6 ms 1228 KB Output is correct
6 Correct 6 ms 1228 KB Output is correct
7 Correct 7 ms 1228 KB Output is correct
8 Correct 7 ms 1100 KB Output is correct
9 Correct 6 ms 1100 KB Output is correct
10 Correct 6 ms 1172 KB Output is correct
11 Correct 5 ms 1172 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 588 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 588 KB Output is correct
4 Correct 1 ms 588 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 588 KB Output is correct
7 Correct 1 ms 588 KB Output is correct
8 Correct 1 ms 588 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 588 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 168 ms 1548 KB Output is correct
2 Correct 317 ms 1528 KB Output is correct
3 Correct 439 ms 1688 KB Output is correct
4 Correct 14 ms 1484 KB Output is correct
5 Correct 11 ms 1484 KB Output is correct
6 Correct 11 ms 1560 KB Output is correct
7 Correct 10 ms 1484 KB Output is correct
8 Correct 10 ms 1484 KB Output is correct
9 Correct 9 ms 1484 KB Output is correct
10 Correct 9 ms 1464 KB Output is correct
11 Correct 9 ms 1484 KB Output is correct
12 Correct 11 ms 1356 KB Output is correct
13 Correct 10 ms 1428 KB Output is correct
14 Correct 9 ms 1484 KB Output is correct
15 Correct 10 ms 1536 KB Output is correct
16 Correct 9 ms 1484 KB Output is correct
17 Correct 10 ms 1496 KB Output is correct
18 Correct 472 ms 1268 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 1364 KB Output is correct
2 Correct 12 ms 1300 KB Output is correct
3 Correct 10 ms 1484 KB Output is correct
4 Correct 10 ms 1512 KB Output is correct
5 Correct 11 ms 1484 KB Output is correct
6 Correct 10 ms 1484 KB Output is correct
7 Correct 10 ms 1484 KB Output is correct
8 Correct 10 ms 1484 KB Output is correct
9 Correct 11 ms 1392 KB Output is correct
10 Correct 12 ms 1432 KB Output is correct
11 Correct 12 ms 1484 KB Output is correct
12 Correct 10 ms 1516 KB Output is correct
13 Correct 10 ms 1416 KB Output is correct
14 Correct 10 ms 1356 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1416 KB Output is correct
2 Correct 10 ms 1540 KB Output is correct
3 Correct 10 ms 1612 KB Output is correct
4 Correct 9 ms 1604 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 7 ms 1228 KB Output is correct
7 Correct 8 ms 1168 KB Output is correct
8 Correct 8 ms 1356 KB Output is correct
9 Correct 6 ms 1240 KB Output is correct
10 Correct 3 ms 716 KB Output is correct
11 Correct 6 ms 1228 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1228 KB Output is correct
2 Correct 7 ms 1228 KB Output is correct
3 Correct 8 ms 1232 KB Output is correct
4 Correct 7 ms 1228 KB Output is correct
5 Correct 6 ms 1228 KB Output is correct
6 Correct 6 ms 1228 KB Output is correct
7 Correct 7 ms 1228 KB Output is correct
8 Correct 7 ms 1100 KB Output is correct
9 Correct 6 ms 1100 KB Output is correct
10 Correct 6 ms 1172 KB Output is correct
11 Correct 5 ms 1172 KB Output is correct
12 Correct 1 ms 588 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 460 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 588 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 588 KB Output is correct
23 Correct 1 ms 588 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 588 KB Output is correct
26 Correct 1 ms 588 KB Output is correct
27 Correct 1 ms 588 KB Output is correct
28 Correct 1 ms 588 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 168 ms 1548 KB Output is correct
33 Correct 317 ms 1528 KB Output is correct
34 Correct 439 ms 1688 KB Output is correct
35 Correct 14 ms 1484 KB Output is correct
36 Correct 11 ms 1484 KB Output is correct
37 Correct 11 ms 1560 KB Output is correct
38 Correct 10 ms 1484 KB Output is correct
39 Correct 10 ms 1484 KB Output is correct
40 Correct 9 ms 1484 KB Output is correct
41 Correct 9 ms 1464 KB Output is correct
42 Correct 9 ms 1484 KB Output is correct
43 Correct 11 ms 1356 KB Output is correct
44 Correct 10 ms 1428 KB Output is correct
45 Correct 9 ms 1484 KB Output is correct
46 Correct 10 ms 1536 KB Output is correct
47 Correct 9 ms 1484 KB Output is correct
48 Correct 10 ms 1496 KB Output is correct
49 Correct 472 ms 1268 KB Output is correct
50 Correct 9 ms 1364 KB Output is correct
51 Correct 12 ms 1300 KB Output is correct
52 Correct 10 ms 1484 KB Output is correct
53 Correct 10 ms 1512 KB Output is correct
54 Correct 11 ms 1484 KB Output is correct
55 Correct 10 ms 1484 KB Output is correct
56 Correct 10 ms 1484 KB Output is correct
57 Correct 10 ms 1484 KB Output is correct
58 Correct 11 ms 1392 KB Output is correct
59 Correct 12 ms 1432 KB Output is correct
60 Correct 12 ms 1484 KB Output is correct
61 Correct 10 ms 1516 KB Output is correct
62 Correct 10 ms 1416 KB Output is correct
63 Correct 10 ms 1356 KB Output is correct
64 Correct 11 ms 1416 KB Output is correct
65 Correct 10 ms 1540 KB Output is correct
66 Correct 10 ms 1612 KB Output is correct
67 Correct 9 ms 1604 KB Output is correct
68 Correct 2 ms 596 KB Output is correct
69 Correct 7 ms 1228 KB Output is correct
70 Correct 8 ms 1168 KB Output is correct
71 Correct 8 ms 1356 KB Output is correct
72 Correct 6 ms 1240 KB Output is correct
73 Correct 3 ms 716 KB Output is correct
74 Correct 6 ms 1228 KB Output is correct
75 Correct 270 ms 1832 KB Output is correct
76 Correct 349 ms 1748 KB Output is correct
77 Correct 488 ms 1856 KB Output is correct
78 Correct 520 ms 1744 KB Output is correct
79 Correct 481 ms 1768 KB Output is correct
80 Correct 11 ms 1612 KB Output is correct
81 Correct 11 ms 1748 KB Output is correct
82 Correct 12 ms 1612 KB Output is correct
83 Correct 11 ms 1664 KB Output is correct
84 Correct 13 ms 1616 KB Output is correct
85 Correct 11 ms 1724 KB Output is correct
86 Correct 14 ms 1740 KB Output is correct
87 Correct 10 ms 1740 KB Output is correct
88 Correct 15 ms 1744 KB Output is correct
89 Correct 11 ms 1720 KB Output is correct
90 Correct 20 ms 1736 KB Output is correct
91 Correct 18 ms 1740 KB Output is correct
92 Correct 30 ms 1736 KB Output is correct
93 Correct 33 ms 1612 KB Output is correct
94 Correct 33 ms 1720 KB Output is correct
95 Correct 33 ms 1612 KB Output is correct
96 Correct 113 ms 1592 KB Output is correct
97 Correct 439 ms 1732 KB Output is correct
98 Correct 685 ms 1684 KB Output is correct
99 Correct 695 ms 1732 KB Output is correct
100 Correct 491 ms 1496 KB Output is correct