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Submission #125166

# Submission time Handle Problem Language Result Execution time Memory
125166 2019-07-04T19:48:36 Z tmwilliamlin168 Toy Train (IOI17_train) C++14
100 / 100
 693 ms 1448 KB 
#include "train.h"
#include <bits/stdc++.h>
using namespace std;

const int mxN=5e3;
int n, w[mxN], d[mxN][2], b[mxN];
vector<int> adj[mxN];
queue<int> qu;

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
	n=a.size();
	for(int i=0; i<u.size(); ++i) {
		adj[v[i]].push_back(u[i]);
		++b[u[i]];
	}
	memset(w, -1, 4*n);
	while(1) {
		for(int i=0; i<n; ++i) {
			if(w[i]<0&&(r[i]||d[i][1]>=(a[i]?1:b[i]))) {
				w[i]=1;
				qu.push(i);
			}
		}
		while(qu.size()) {
			int u=qu.front();
			qu.pop();
			for(int v : adj[u]) {
				++d[v][1];
				if(w[v]<0&&d[v][1]>=(a[v]?1:b[v])) {
					w[v]=1;
					qu.push(v);
				}
			}
		}
		bool c=1;
		for(int i=0; i<n&&c; ++i)
			c=~w[i];
		if(c)
			break;
		for(int i=0; i<n; ++i) {
			if(w[i]<0) {
				w[i]=0;
				for(int v : adj[i])
					++d[v][0];
			}
			if(w[i]) {
				w[i]=-1;
				for(int v : adj[i])
					--d[v][1];
			}
		}
		for(int i=0; i<n; ++i) {
			if(w[i]&&d[i][0]>=(a[i]?b[i]:1)) {
				w[i]=0;
				qu.push(i);
			}
		}
		while(qu.size()) {
			int u=qu.front();
			qu.pop();
			for(int v : adj[u]) {
				++d[v][0];
				if(w[v]&&d[v][0]>=(a[v]?b[v]:1)) {
					w[v]=0;
					qu.push(v);
				}
			}
		}
	}
	return vector<int>(w, w+n);
}

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:12:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<u.size(); ++i) {
               ~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 888 KB Output is correct
2 Correct 8 ms 1016 KB Output is correct
3 Correct 7 ms 888 KB Output is correct
4 Correct 7 ms 888 KB Output is correct
5 Correct 7 ms 888 KB Output is correct
6 Correct 7 ms 888 KB Output is correct
7 Correct 6 ms 888 KB Output is correct
8 Correct 7 ms 888 KB Output is correct
9 Correct 8 ms 888 KB Output is correct
10 Correct 6 ms 888 KB Output is correct
11 Correct 6 ms 888 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 632 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 504 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 1400 KB Output is correct
2 Correct 310 ms 1400 KB Output is correct
3 Correct 438 ms 1400 KB Output is correct
4 Correct 10 ms 1400 KB Output is correct
5 Correct 11 ms 1400 KB Output is correct
6 Correct 11 ms 1404 KB Output is correct
7 Correct 10 ms 1400 KB Output is correct
8 Correct 10 ms 1400 KB Output is correct
9 Correct 9 ms 1272 KB Output is correct
10 Correct 10 ms 1272 KB Output is correct
11 Correct 10 ms 1272 KB Output is correct
12 Correct 9 ms 1272 KB Output is correct
13 Correct 10 ms 1372 KB Output is correct
14 Correct 10 ms 1272 KB Output is correct
15 Correct 10 ms 1400 KB Output is correct
16 Correct 10 ms 1400 KB Output is correct
17 Correct 10 ms 1400 KB Output is correct
18 Correct 537 ms 1144 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 1272 KB Output is correct
2 Correct 10 ms 1400 KB Output is correct
3 Correct 10 ms 1272 KB Output is correct
4 Correct 10 ms 1448 KB Output is correct
5 Correct 10 ms 1400 KB Output is correct
6 Correct 10 ms 1272 KB Output is correct
7 Correct 10 ms 1272 KB Output is correct
8 Correct 9 ms 1272 KB Output is correct
9 Correct 9 ms 1272 KB Output is correct
10 Correct 10 ms 1400 KB Output is correct
11 Correct 10 ms 1404 KB Output is correct
12 Correct 10 ms 1348 KB Output is correct
13 Correct 10 ms 1400 KB Output is correct
14 Correct 10 ms 1272 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1372 KB Output is correct
2 Correct 10 ms 1272 KB Output is correct
3 Correct 11 ms 1400 KB Output is correct
4 Correct 10 ms 1272 KB Output is correct
5 Correct 3 ms 504 KB Output is correct
6 Correct 6 ms 888 KB Output is correct
7 Correct 7 ms 1016 KB Output is correct
8 Correct 7 ms 1016 KB Output is correct
9 Correct 7 ms 1016 KB Output is correct
10 Correct 3 ms 632 KB Output is correct
11 Correct 7 ms 888 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 888 KB Output is correct
2 Correct 8 ms 1016 KB Output is correct
3 Correct 7 ms 888 KB Output is correct
4 Correct 7 ms 888 KB Output is correct
5 Correct 7 ms 888 KB Output is correct
6 Correct 7 ms 888 KB Output is correct
7 Correct 6 ms 888 KB Output is correct
8 Correct 7 ms 888 KB Output is correct
9 Correct 8 ms 888 KB Output is correct
10 Correct 6 ms 888 KB Output is correct
11 Correct 6 ms 888 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 2 ms 632 KB Output is correct
19 Correct 2 ms 504 KB Output is correct
20 Correct 2 ms 504 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 504 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 504 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 504 KB Output is correct
28 Correct 2 ms 504 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 504 KB Output is correct
32 Correct 166 ms 1400 KB Output is correct
33 Correct 310 ms 1400 KB Output is correct
34 Correct 438 ms 1400 KB Output is correct
35 Correct 10 ms 1400 KB Output is correct
36 Correct 11 ms 1400 KB Output is correct
37 Correct 11 ms 1404 KB Output is correct
38 Correct 10 ms 1400 KB Output is correct
39 Correct 10 ms 1400 KB Output is correct
40 Correct 9 ms 1272 KB Output is correct
41 Correct 10 ms 1272 KB Output is correct
42 Correct 10 ms 1272 KB Output is correct
43 Correct 9 ms 1272 KB Output is correct
44 Correct 10 ms 1372 KB Output is correct
45 Correct 10 ms 1272 KB Output is correct
46 Correct 10 ms 1400 KB Output is correct
47 Correct 10 ms 1400 KB Output is correct
48 Correct 10 ms 1400 KB Output is correct
49 Correct 537 ms 1144 KB Output is correct
50 Correct 9 ms 1272 KB Output is correct
51 Correct 10 ms 1400 KB Output is correct
52 Correct 10 ms 1272 KB Output is correct
53 Correct 10 ms 1448 KB Output is correct
54 Correct 10 ms 1400 KB Output is correct
55 Correct 10 ms 1272 KB Output is correct
56 Correct 10 ms 1272 KB Output is correct
57 Correct 9 ms 1272 KB Output is correct
58 Correct 9 ms 1272 KB Output is correct
59 Correct 10 ms 1400 KB Output is correct
60 Correct 10 ms 1404 KB Output is correct
61 Correct 10 ms 1348 KB Output is correct
62 Correct 10 ms 1400 KB Output is correct
63 Correct 10 ms 1272 KB Output is correct
64 Correct 11 ms 1372 KB Output is correct
65 Correct 10 ms 1272 KB Output is correct
66 Correct 11 ms 1400 KB Output is correct
67 Correct 10 ms 1272 KB Output is correct
68 Correct 3 ms 504 KB Output is correct
69 Correct 6 ms 888 KB Output is correct
70 Correct 7 ms 1016 KB Output is correct
71 Correct 7 ms 1016 KB Output is correct
72 Correct 7 ms 1016 KB Output is correct
73 Correct 3 ms 632 KB Output is correct
74 Correct 7 ms 888 KB Output is correct
75 Correct 199 ms 1404 KB Output is correct
76 Correct 339 ms 1400 KB Output is correct
77 Correct 471 ms 1388 KB Output is correct
78 Correct 482 ms 1400 KB Output is correct
79 Correct 469 ms 1400 KB Output is correct
80 Correct 11 ms 1272 KB Output is correct
81 Correct 10 ms 1272 KB Output is correct
82 Correct 11 ms 1272 KB Output is correct
83 Correct 11 ms 1276 KB Output is correct
84 Correct 11 ms 1272 KB Output is correct
85 Correct 11 ms 1272 KB Output is correct
86 Correct 11 ms 1272 KB Output is correct
87 Correct 10 ms 1260 KB Output is correct
88 Correct 14 ms 1372 KB Output is correct
89 Correct 11 ms 1272 KB Output is correct
90 Correct 19 ms 1272 KB Output is correct
91 Correct 17 ms 1400 KB Output is correct
92 Correct 31 ms 1400 KB Output is correct
93 Correct 31 ms 1372 KB Output is correct
94 Correct 31 ms 1272 KB Output is correct
95 Correct 35 ms 1272 KB Output is correct
96 Correct 109 ms 1400 KB Output is correct
97 Correct 431 ms 1400 KB Output is correct
98 Correct 693 ms 1400 KB Output is correct
99 Correct 669 ms 1332 KB Output is correct
100 Correct 561 ms 1016 KB Output is correct