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Submission #296281

# Submission time Handle Problem Language Result Execution time Memory
296281 2020-09-10T13:10:38 Z b00n0rp Toy Train (IOI17_train) C++17
100 / 100
 1348 ms 110692 KB 
#include "train.h"
#include<bits/stdc++.h>
using namespace std;

#define vi vector<int>
#define pb push_back
#define REP(i,n) for(int i = 0; i < n; i++)
#define FOR(i,a,b) for(int i = a; i < b; i++)

const int MAXN = 5005;

int n,m;
int outdeg[MAXN];
vi adj[MAXN],rev[MAXN];
vi U,V;
vi ans;

vi charging,own;

vi f(vi tot,vi sub,int type){
	for(auto x:tot){
		outdeg[x] = adj[x].size();
		if(own[x] == type) outdeg[x] = 1;
	}
	queue<int> q;
	for(auto x:sub){
		outdeg[x] = 0;
		q.push(x);
	}
	while(!q.empty()){
		int u = q.front();
		q.pop();
		for(auto v:rev[u]){
			outdeg[v]--;
			if(!outdeg[v]){
				sub.pb(v);
				q.push(v);
			}
		}
	}
	return sub;
}

void solve(vi gg){
	bitset<MAXN> w;
	vi ch,win,lose,nwin,nlose;
	for(auto x:gg){
		w[x] = 1;
		if(charging[x]) ch.pb(x);
		rev[x].clear();
		adj[x].clear();
	}
	REP(i,m){
		if(w[U[i]] and w[V[i]]){
			adj[U[i]].pb(V[i]);
			rev[V[i]].pb(U[i]);
		}
	}
	win = f(gg,ch,1);

	if(win.size() == gg.size()){
		for(auto x:gg) ans[x] = 1;
		return;
	}
	w.reset();
	for(auto x:win) w[x] = 1;
	for(auto x:gg){
		if(!w[x]) nwin.pb(x);
	}
	lose = f(gg,nwin,0);
	w.reset();
	for(auto x:lose){
		w[x] = 1;
		ans[x] = 0;
	}
	for(auto x:gg){
		if(!w[x]) nlose.pb(x);
	}
	solve(nlose);
}

vi who_wins(vi a, vi r, vi u, vi v){
	U = u;
	V = v;
	charging = r;
	own = a;
	n = a.size();
	m = u.size();
	REP(i,m){
		adj[u[i]].pb(v[i]);
		rev[v[i]].pb(u[i]);
	}
	ans.resize(n);
	vi gg;
	REP(i,n) gg.pb(i);
	solve(gg);
	return ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 1408 KB Output is correct
2 Correct 8 ms 1664 KB Output is correct
3 Correct 8 ms 1536 KB Output is correct
4 Correct 8 ms 1536 KB Output is correct
5 Correct 7 ms 1408 KB Output is correct
6 Correct 7 ms 1408 KB Output is correct
7 Correct 6 ms 1280 KB Output is correct
8 Correct 8 ms 1568 KB Output is correct
9 Correct 7 ms 1408 KB Output is correct
10 Correct 6 ms 1316 KB Output is correct
11 Correct 5 ms 1280 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 0 ms 512 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 1 ms 512 KB Output is correct
17 Correct 1 ms 512 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 512 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 324 ms 31236 KB Output is correct
2 Correct 571 ms 53396 KB Output is correct
3 Correct 786 ms 65864 KB Output is correct
4 Correct 12 ms 1792 KB Output is correct
5 Correct 13 ms 1792 KB Output is correct
6 Correct 13 ms 1792 KB Output is correct
7 Correct 11 ms 1664 KB Output is correct
8 Correct 11 ms 1776 KB Output is correct
9 Correct 10 ms 1664 KB Output is correct
10 Correct 11 ms 1664 KB Output is correct
11 Correct 12 ms 1664 KB Output is correct
12 Correct 10 ms 1664 KB Output is correct
13 Correct 11 ms 1664 KB Output is correct
14 Correct 11 ms 1664 KB Output is correct
15 Correct 11 ms 1664 KB Output is correct
16 Correct 11 ms 1664 KB Output is correct
17 Correct 11 ms 1792 KB Output is correct
18 Correct 892 ms 100348 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1664 KB Output is correct
2 Correct 11 ms 1664 KB Output is correct
3 Correct 11 ms 1664 KB Output is correct
4 Correct 13 ms 1776 KB Output is correct
5 Correct 11 ms 1748 KB Output is correct
6 Correct 11 ms 1792 KB Output is correct
7 Correct 11 ms 1664 KB Output is correct
8 Correct 10 ms 1664 KB Output is correct
9 Correct 11 ms 1664 KB Output is correct
10 Correct 11 ms 1788 KB Output is correct
11 Correct 11 ms 1792 KB Output is correct
12 Correct 11 ms 1788 KB Output is correct
13 Correct 11 ms 1792 KB Output is correct
14 Correct 14 ms 1664 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1792 KB Output is correct
2 Correct 11 ms 1664 KB Output is correct
3 Correct 12 ms 1792 KB Output is correct
4 Correct 11 ms 1664 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 6 ms 1280 KB Output is correct
7 Correct 7 ms 1280 KB Output is correct
8 Correct 7 ms 1280 KB Output is correct
9 Correct 7 ms 1312 KB Output is correct
10 Correct 2 ms 768 KB Output is correct
11 Correct 7 ms 1280 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 1408 KB Output is correct
2 Correct 8 ms 1664 KB Output is correct
3 Correct 8 ms 1536 KB Output is correct
4 Correct 8 ms 1536 KB Output is correct
5 Correct 7 ms 1408 KB Output is correct
6 Correct 7 ms 1408 KB Output is correct
7 Correct 6 ms 1280 KB Output is correct
8 Correct 8 ms 1568 KB Output is correct
9 Correct 7 ms 1408 KB Output is correct
10 Correct 6 ms 1316 KB Output is correct
11 Correct 5 ms 1280 KB Output is correct
12 Correct 1 ms 640 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 1 ms 512 KB Output is correct
17 Correct 1 ms 512 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 0 ms 512 KB Output is correct
22 Correct 1 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 1 ms 512 KB Output is correct
25 Correct 1 ms 512 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 512 KB Output is correct
30 Correct 1 ms 512 KB Output is correct
31 Correct 1 ms 512 KB Output is correct
32 Correct 324 ms 31236 KB Output is correct
33 Correct 571 ms 53396 KB Output is correct
34 Correct 786 ms 65864 KB Output is correct
35 Correct 12 ms 1792 KB Output is correct
36 Correct 13 ms 1792 KB Output is correct
37 Correct 13 ms 1792 KB Output is correct
38 Correct 11 ms 1664 KB Output is correct
39 Correct 11 ms 1776 KB Output is correct
40 Correct 10 ms 1664 KB Output is correct
41 Correct 11 ms 1664 KB Output is correct
42 Correct 12 ms 1664 KB Output is correct
43 Correct 10 ms 1664 KB Output is correct
44 Correct 11 ms 1664 KB Output is correct
45 Correct 11 ms 1664 KB Output is correct
46 Correct 11 ms 1664 KB Output is correct
47 Correct 11 ms 1664 KB Output is correct
48 Correct 11 ms 1792 KB Output is correct
49 Correct 892 ms 100348 KB Output is correct
50 Correct 12 ms 1664 KB Output is correct
51 Correct 11 ms 1664 KB Output is correct
52 Correct 11 ms 1664 KB Output is correct
53 Correct 13 ms 1776 KB Output is correct
54 Correct 11 ms 1748 KB Output is correct
55 Correct 11 ms 1792 KB Output is correct
56 Correct 11 ms 1664 KB Output is correct
57 Correct 10 ms 1664 KB Output is correct
58 Correct 11 ms 1664 KB Output is correct
59 Correct 11 ms 1788 KB Output is correct
60 Correct 11 ms 1792 KB Output is correct
61 Correct 11 ms 1788 KB Output is correct
62 Correct 11 ms 1792 KB Output is correct
63 Correct 14 ms 1664 KB Output is correct
64 Correct 12 ms 1792 KB Output is correct
65 Correct 11 ms 1664 KB Output is correct
66 Correct 12 ms 1792 KB Output is correct
67 Correct 11 ms 1664 KB Output is correct
68 Correct 1 ms 640 KB Output is correct
69 Correct 6 ms 1280 KB Output is correct
70 Correct 7 ms 1280 KB Output is correct
71 Correct 7 ms 1280 KB Output is correct
72 Correct 7 ms 1312 KB Output is correct
73 Correct 2 ms 768 KB Output is correct
74 Correct 7 ms 1280 KB Output is correct
75 Correct 464 ms 53240 KB Output is correct
76 Correct 597 ms 53224 KB Output is correct
77 Correct 797 ms 65992 KB Output is correct
78 Correct 795 ms 65996 KB Output is correct
79 Correct 794 ms 66000 KB Output is correct
80 Correct 12 ms 1792 KB Output is correct
81 Correct 12 ms 1780 KB Output is correct
82 Correct 13 ms 1792 KB Output is correct
83 Correct 14 ms 1888 KB Output is correct
84 Correct 15 ms 1920 KB Output is correct
85 Correct 12 ms 1792 KB Output is correct
86 Correct 14 ms 1920 KB Output is correct
87 Correct 12 ms 1664 KB Output is correct
88 Correct 17 ms 2048 KB Output is correct
89 Correct 12 ms 1792 KB Output is correct
90 Correct 25 ms 2424 KB Output is correct
91 Correct 26 ms 2560 KB Output is correct
92 Correct 47 ms 4344 KB Output is correct
93 Correct 44 ms 3832 KB Output is correct
94 Correct 44 ms 3704 KB Output is correct
95 Correct 47 ms 4088 KB Output is correct
96 Correct 172 ms 13560 KB Output is correct
97 Correct 817 ms 64608 KB Output is correct
98 Correct 1261 ms 91164 KB Output is correct
99 Correct 1348 ms 110692 KB Output is correct
100 Correct 902 ms 100344 KB Output is correct