oj.uz

Submission #296278

# Submission time Handle Problem Language Result Execution time Memory
296278 2020-09-10T13:08:38 Z b00n0rp Toy Train (IOI17_train) C++17
100 / 100
 1388 ms 110580 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;
	}
	for(auto x:tot){
		if(!outdeg[x]) 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 8 ms 1408 KB Output is correct
2 Correct 9 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 8 ms 1408 KB Output is correct
7 Correct 6 ms 1280 KB Output is correct
8 Correct 8 ms 1664 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 512 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 1 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 327 ms 31096 KB Output is correct
2 Correct 609 ms 53368 KB Output is correct
3 Correct 797 ms 66136 KB Output is correct
4 Correct 12 ms 1792 KB Output is correct
5 Correct 14 ms 1792 KB Output is correct
6 Correct 14 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 11 ms 1664 KB Output is correct
12 Correct 10 ms 1664 KB Output is correct
13 Correct 12 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 1664 KB Output is correct
18 Correct 951 ms 100252 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 1664 KB Output is correct
2 Correct 10 ms 1664 KB Output is correct
3 Correct 11 ms 1664 KB Output is correct
4 Correct 11 ms 1776 KB Output is correct
5 Correct 12 ms 1780 KB Output is correct
6 Correct 11 ms 1760 KB Output is correct
7 Correct 11 ms 1764 KB Output is correct
8 Correct 11 ms 1664 KB Output is correct
9 Correct 10 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 12 ms 1792 KB Output is correct
14 Correct 11 ms 1664 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 13 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 10 ms 1664 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 5 ms 1280 KB Output is correct
7 Correct 7 ms 1212 KB Output is correct
8 Correct 8 ms 1280 KB Output is correct
9 Correct 7 ms 1280 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 8 ms 1408 KB Output is correct
2 Correct 9 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 8 ms 1408 KB Output is correct
7 Correct 6 ms 1280 KB Output is correct
8 Correct 8 ms 1664 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 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
21 Correct 1 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 327 ms 31096 KB Output is correct
33 Correct 609 ms 53368 KB Output is correct
34 Correct 797 ms 66136 KB Output is correct
35 Correct 12 ms 1792 KB Output is correct
36 Correct 14 ms 1792 KB Output is correct
37 Correct 14 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 11 ms 1664 KB Output is correct
43 Correct 10 ms 1664 KB Output is correct
44 Correct 12 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 1664 KB Output is correct
49 Correct 951 ms 100252 KB Output is correct
50 Correct 9 ms 1664 KB Output is correct
51 Correct 10 ms 1664 KB Output is correct
52 Correct 11 ms 1664 KB Output is correct
53 Correct 11 ms 1776 KB Output is correct
54 Correct 12 ms 1780 KB Output is correct
55 Correct 11 ms 1760 KB Output is correct
56 Correct 11 ms 1764 KB Output is correct
57 Correct 11 ms 1664 KB Output is correct
58 Correct 10 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 12 ms 1792 KB Output is correct
63 Correct 11 ms 1664 KB Output is correct
64 Correct 13 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 10 ms 1664 KB Output is correct
68 Correct 1 ms 640 KB Output is correct
69 Correct 5 ms 1280 KB Output is correct
70 Correct 7 ms 1212 KB Output is correct
71 Correct 8 ms 1280 KB Output is correct
72 Correct 7 ms 1280 KB Output is correct
73 Correct 2 ms 768 KB Output is correct
74 Correct 7 ms 1280 KB Output is correct
75 Correct 467 ms 53112 KB Output is correct
76 Correct 613 ms 53368 KB Output is correct
77 Correct 818 ms 65912 KB Output is correct
78 Correct 817 ms 66040 KB Output is correct
79 Correct 820 ms 65944 KB Output is correct
80 Correct 15 ms 1792 KB Output is correct
81 Correct 12 ms 1664 KB Output is correct
82 Correct 14 ms 1792 KB Output is correct
83 Correct 14 ms 1792 KB Output is correct
84 Correct 15 ms 1920 KB Output is correct
85 Correct 13 ms 1792 KB Output is correct
86 Correct 15 ms 1920 KB Output is correct
87 Correct 11 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 2432 KB Output is correct
91 Correct 23 ms 2552 KB Output is correct
92 Correct 49 ms 4216 KB Output is correct
93 Correct 47 ms 3832 KB Output is correct
94 Correct 43 ms 3704 KB Output is correct
95 Correct 48 ms 4088 KB Output is correct
96 Correct 179 ms 13560 KB Output is correct
97 Correct 851 ms 64504 KB Output is correct
98 Correct 1224 ms 91256 KB Output is correct
99 Correct 1388 ms 110580 KB Output is correct
100 Correct 913 ms 100252 KB Output is correct