oj.uz

Submission #74063

# Submission time Handle Problem Language Result Execution time Memory
74063 2018-08-29T18:56:40 Z Bruteforceman Toy Train (IOI17_train) C++11
100 / 100
 708 ms 9660 KB 
#include "train.h"
#include "bits/stdc++.h"
using namespace std;
vector <int> g[5005];
vector <int> trans[5005];

int own[5005];
int charge[5005];
int n;
int m;

int out[5005];
bool take[5005];
bool del[5005];
int outdeg[5005];

vector <int> Fa(vector <int> v) {
	for(int i = 0; i < n; i++) {
		out[i] = 0;
		take[i] = false;
	}
	queue <int> q;
	for(auto i : v) {
		q.push(i);
		take[i] = true;
	}
	while(!q.empty()) {
		int i = q.front();
		q.pop();
		for(auto j : trans[i]) {
			if(del[j]) continue;
			out[j] += 1;
			if(!take[j] && own[j] == 1) {
				q.push(j);
				take[j] = true;
			}
			if(!take[j] && out[j] == outdeg[j] && own[j] == 0) {
				q.push(j);
				take[j] = true;
			}
		}
	}
	vector <int> ans;
	for(int i = 0; i < n; i++) {
		if(take[i]) {
			ans.emplace_back(i);
		}
	}
	return ans;
}	
vector <int> Fb(vector <int> v) {
	for(int i = 0; i < n; i++) {
		out[i] = 0;
		take[i] = false;
	}
	queue <int> q;
	for(auto i : v) {
		q.push(i);
		take[i] = true;
	}
	while(!q.empty()) {
		int i = q.front();
		q.pop();
		for(auto j : trans[i]) {
			if(del[j]) continue;
			out[j] += 1;
			if(!take[j] && own[j] == 0) {
				q.push(j);
				take[j] = true;
			}
			if(!take[j] && out[j] == outdeg[j] && own[j] == 1) {
				q.push(j);
				take[j] = true;
			}
		}
	}
	vector <int> ans;
	for(int i = 0; i < n; i++) {
		if(take[i]) {
			ans.emplace_back(i);
		}
	}
	return ans;
}

std::vector<int> who_wins(std::vector<int> a, std::vector<int> r, std::vector<int> u, std::vector<int> v) {
	vector <int> ans;
	n = a.size();
	m = u.size();
	ans.resize(n);

	for(int i = 0; i < n; i++) {
		own[i] = a[i];
		charge[i] = r[i];
		del[i] = false;
	}
	for(int i = 0; i < m; i++) {
		int p = u[i];
		int q = v[i];
		g[p].emplace_back(q);
		trans[q].emplace_back(p);
		++outdeg[p];
	}
	while(true) {
		vector <int> station;
		for(int i = 0; i < n; i++) {
			if(charge[i] && !del[i]) {
				station.emplace_back(i);
			}
		}
		vector <int> P = Fa(station);
		vector <int> Q;
		for(int i = 0; i < n; i++) {
			if(!take[i] && !del[i]) {
				Q.emplace_back(i);
			}
		}
		if(Q.empty()) {
			for(auto i : P) {
				ans[i] = 1;
			}
			break;
		}
		vector <int> X = Fb(Q);
		for(auto i : X) {
			ans[i] = 0;
			del[i] = true;
			for(auto j : trans[i]) {
				--outdeg[j];
			}
 		}
	}
	return ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 1272 KB Output is correct
2 Correct 10 ms 1272 KB Output is correct
3 Correct 13 ms 1472 KB Output is correct
4 Correct 9 ms 1472 KB Output is correct
5 Correct 10 ms 1472 KB Output is correct
6 Correct 9 ms 1472 KB Output is correct
7 Correct 8 ms 1472 KB Output is correct
8 Correct 10 ms 1484 KB Output is correct
9 Correct 8 ms 1484 KB Output is correct
10 Correct 10 ms 1484 KB Output is correct
11 Correct 8 ms 1492 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1492 KB Output is correct
2 Correct 3 ms 1492 KB Output is correct
3 Correct 3 ms 1492 KB Output is correct
4 Correct 2 ms 1492 KB Output is correct
5 Correct 2 ms 1492 KB Output is correct
6 Correct 3 ms 1492 KB Output is correct
7 Correct 3 ms 1492 KB Output is correct
8 Correct 3 ms 1492 KB Output is correct
9 Correct 3 ms 1492 KB Output is correct
10 Correct 4 ms 1492 KB Output is correct
11 Correct 3 ms 1492 KB Output is correct
12 Correct 2 ms 1492 KB Output is correct
13 Correct 2 ms 1492 KB Output is correct
14 Correct 3 ms 1492 KB Output is correct
15 Correct 4 ms 1492 KB Output is correct
16 Correct 2 ms 1492 KB Output is correct
17 Correct 5 ms 1492 KB Output is correct
18 Correct 3 ms 1492 KB Output is correct
19 Correct 4 ms 1492 KB Output is correct
20 Correct 4 ms 1492 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 131 ms 1996 KB Output is correct
2 Correct 258 ms 1996 KB Output is correct
3 Correct 346 ms 2020 KB Output is correct
4 Correct 14 ms 2020 KB Output is correct
5 Correct 13 ms 2020 KB Output is correct
6 Correct 15 ms 2144 KB Output is correct
7 Correct 15 ms 2344 KB Output is correct
8 Correct 15 ms 2556 KB Output is correct
9 Correct 13 ms 2764 KB Output is correct
10 Correct 16 ms 2828 KB Output is correct
11 Correct 16 ms 3076 KB Output is correct
12 Correct 13 ms 3272 KB Output is correct
13 Correct 15 ms 3528 KB Output is correct
14 Correct 12 ms 3724 KB Output is correct
15 Correct 14 ms 3944 KB Output is correct
16 Correct 13 ms 4152 KB Output is correct
17 Correct 15 ms 4360 KB Output is correct
18 Correct 525 ms 4360 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 4360 KB Output is correct
2 Correct 13 ms 4360 KB Output is correct
3 Correct 11 ms 4432 KB Output is correct
4 Correct 19 ms 4436 KB Output is correct
5 Correct 18 ms 4436 KB Output is correct
6 Correct 13 ms 4436 KB Output is correct
7 Correct 13 ms 4436 KB Output is correct
8 Correct 19 ms 4436 KB Output is correct
9 Correct 12 ms 4520 KB Output is correct
10 Correct 13 ms 4560 KB Output is correct
11 Correct 22 ms 4560 KB Output is correct
12 Correct 12 ms 4560 KB Output is correct
13 Correct 13 ms 4560 KB Output is correct
14 Correct 15 ms 4560 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 4560 KB Output is correct
2 Correct 13 ms 4560 KB Output is correct
3 Correct 18 ms 4560 KB Output is correct
4 Correct 11 ms 4560 KB Output is correct
5 Correct 3 ms 4560 KB Output is correct
6 Correct 7 ms 4560 KB Output is correct
7 Correct 8 ms 4560 KB Output is correct
8 Correct 9 ms 4560 KB Output is correct
9 Correct 8 ms 4560 KB Output is correct
10 Correct 5 ms 4560 KB Output is correct
11 Correct 8 ms 4560 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 1272 KB Output is correct
2 Correct 10 ms 1272 KB Output is correct
3 Correct 13 ms 1472 KB Output is correct
4 Correct 9 ms 1472 KB Output is correct
5 Correct 10 ms 1472 KB Output is correct
6 Correct 9 ms 1472 KB Output is correct
7 Correct 8 ms 1472 KB Output is correct
8 Correct 10 ms 1484 KB Output is correct
9 Correct 8 ms 1484 KB Output is correct
10 Correct 10 ms 1484 KB Output is correct
11 Correct 8 ms 1492 KB Output is correct
12 Correct 3 ms 1492 KB Output is correct
13 Correct 3 ms 1492 KB Output is correct
14 Correct 3 ms 1492 KB Output is correct
15 Correct 2 ms 1492 KB Output is correct
16 Correct 2 ms 1492 KB Output is correct
17 Correct 3 ms 1492 KB Output is correct
18 Correct 3 ms 1492 KB Output is correct
19 Correct 3 ms 1492 KB Output is correct
20 Correct 3 ms 1492 KB Output is correct
21 Correct 4 ms 1492 KB Output is correct
22 Correct 3 ms 1492 KB Output is correct
23 Correct 2 ms 1492 KB Output is correct
24 Correct 2 ms 1492 KB Output is correct
25 Correct 3 ms 1492 KB Output is correct
26 Correct 4 ms 1492 KB Output is correct
27 Correct 2 ms 1492 KB Output is correct
28 Correct 5 ms 1492 KB Output is correct
29 Correct 3 ms 1492 KB Output is correct
30 Correct 4 ms 1492 KB Output is correct
31 Correct 4 ms 1492 KB Output is correct
32 Correct 131 ms 1996 KB Output is correct
33 Correct 258 ms 1996 KB Output is correct
34 Correct 346 ms 2020 KB Output is correct
35 Correct 14 ms 2020 KB Output is correct
36 Correct 13 ms 2020 KB Output is correct
37 Correct 15 ms 2144 KB Output is correct
38 Correct 15 ms 2344 KB Output is correct
39 Correct 15 ms 2556 KB Output is correct
40 Correct 13 ms 2764 KB Output is correct
41 Correct 16 ms 2828 KB Output is correct
42 Correct 16 ms 3076 KB Output is correct
43 Correct 13 ms 3272 KB Output is correct
44 Correct 15 ms 3528 KB Output is correct
45 Correct 12 ms 3724 KB Output is correct
46 Correct 14 ms 3944 KB Output is correct
47 Correct 13 ms 4152 KB Output is correct
48 Correct 15 ms 4360 KB Output is correct
49 Correct 525 ms 4360 KB Output is correct
50 Correct 11 ms 4360 KB Output is correct
51 Correct 13 ms 4360 KB Output is correct
52 Correct 11 ms 4432 KB Output is correct
53 Correct 19 ms 4436 KB Output is correct
54 Correct 18 ms 4436 KB Output is correct
55 Correct 13 ms 4436 KB Output is correct
56 Correct 13 ms 4436 KB Output is correct
57 Correct 19 ms 4436 KB Output is correct
58 Correct 12 ms 4520 KB Output is correct
59 Correct 13 ms 4560 KB Output is correct
60 Correct 22 ms 4560 KB Output is correct
61 Correct 12 ms 4560 KB Output is correct
62 Correct 13 ms 4560 KB Output is correct
63 Correct 15 ms 4560 KB Output is correct
64 Correct 14 ms 4560 KB Output is correct
65 Correct 13 ms 4560 KB Output is correct
66 Correct 18 ms 4560 KB Output is correct
67 Correct 11 ms 4560 KB Output is correct
68 Correct 3 ms 4560 KB Output is correct
69 Correct 7 ms 4560 KB Output is correct
70 Correct 8 ms 4560 KB Output is correct
71 Correct 9 ms 4560 KB Output is correct
72 Correct 8 ms 4560 KB Output is correct
73 Correct 5 ms 4560 KB Output is correct
74 Correct 8 ms 4560 KB Output is correct
75 Correct 176 ms 4724 KB Output is correct
76 Correct 247 ms 5020 KB Output is correct
77 Correct 352 ms 5248 KB Output is correct
78 Correct 357 ms 5412 KB Output is correct
79 Correct 399 ms 5568 KB Output is correct
80 Correct 15 ms 5728 KB Output is correct
81 Correct 14 ms 5996 KB Output is correct
82 Correct 15 ms 6096 KB Output is correct
83 Correct 19 ms 6312 KB Output is correct
84 Correct 16 ms 6512 KB Output is correct
85 Correct 15 ms 6716 KB Output is correct
86 Correct 15 ms 7036 KB Output is correct
87 Correct 13 ms 7244 KB Output is correct
88 Correct 19 ms 7452 KB Output is correct
89 Correct 18 ms 7788 KB Output is correct
90 Correct 26 ms 7868 KB Output is correct
91 Correct 22 ms 8188 KB Output is correct
92 Correct 33 ms 8404 KB Output is correct
93 Correct 33 ms 8492 KB Output is correct
94 Correct 38 ms 8700 KB Output is correct
95 Correct 39 ms 8908 KB Output is correct
96 Correct 109 ms 8988 KB Output is correct
97 Correct 407 ms 9432 KB Output is correct
98 Correct 658 ms 9500 KB Output is correct
99 Correct 708 ms 9584 KB Output is correct
100 Correct 515 ms 9660 KB Output is correct