oj.uz

Submission #761357

# Submission time Handle Problem Language Result Execution time Memory
761357 2023-06-19T14:31:59 Z minhcool Toy Train (IOI17_train) C++17
26 / 100
 203 ms 15576 KB 
#ifndef local
#include "train.h"
#endif
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std;

//#define int long long
#define fi first
#define se second
#define pb push_back
#define mp make_pair

typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;

const int N = 3e5 + 5;

const int oo = 1e18 + 7, mod = 1e9 + 7;

int n, a[N];

mt19937 rng(1);

int rnd(int l, int r){
	int temp = rng() % (r - l + 1);
	return abs(temp) + l;
}

vector<int> Adj[N], Adj2[N];

bool out[N];

int deg[N], deg2[N];

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]].pb(U[i]);
		Adj2[U[i]].pb(V[i]);
		//Adj[U[i]].pb(V[i]);
	}
	for(int i = 0; i < n; i++) deg2[i] = Adj2[i].size();
	while(1){
		vector<bool> vis(n + 1);
		for(int i = 0; i < n; i++){
			if(out[i]) continue;
			vis[i] = r[i];
			deg[i] = 0;
		}
		queue<int> q;
		for(int i = 0; i < n; i++){
			if(out[i]) continue;
			if(r[i]) q.push(i);
		}
		while(!q.empty()){
			int u = q.front();
		//	cout << u << "\n";
			vis[u] = 1;
			q.pop();
			for(auto v : Adj[u]){
				if(r[v]) continue;
				if(out[v]) continue;
				deg[v]++;
				if(a[v] == 1 && deg[v] == 1) q.push(v);
				if(a[v] == 0 && deg[v] == deg2[v]) q.push(v);		
			}
			//vis[u] = 1;
			//for(auto v : Adj[u]){
			//	if(vis[v] || out[v]) continue;
			//	q.push(v);
			//}
		}
		//cout << "\n";
		for(int i = 0; i < n; i++){
			if(!out[i] && !vis[i]) q.push(i);
			vis[i] = deg[i] = 0;
		}
		while(!q.empty()){
			int u = q.front();
			//cout << "OK " << u << "\n";
			vis[u] = 1;
			q.pop();
			for(auto v : Adj[u]){
				if(vis[v]) continue;
				if(out[v]) continue;
				deg[v]++;
				if(a[v] == 0 && deg[v] == 1) q.push(v);
				if(a[v] == 1 && deg[v] == deg2[v]) q.push(v);		
			}	
		}
		//exit(0);
		int cnt = 0;
		for(int i = 0; i < n; i++){
			if(out[i] || !vis[i]) continue;
		//	cout << i << "\n";
			out[i] = 1;
			for(auto it : Adj[i]) deg2[it]--;
			cnt++;
		}
		if(!cnt) break;
	}	
	vector<int> ans;
	for(int i = 0; i < n; i++) ans.pb(!out[i]);
	return ans;
}

//#define local
#ifdef local
void process(){
	int n, m;
	cin >> n >> m;
	vector<int> v1, v2;
	v1.resize(n), v2.resize(n);
	vector<int> v3, v4;
	for(int i = 0; i < n; i++) cin >> v1[i];
	for(int i = 0; i < n; i++) cin >> v2[i];
	for(int i = 0; i < m; i++){
		int x, y;
		cin >> x >> y;
		v3.pb(x), v4.pb(y);
	}
	vector<int> v = who_wins(v1, v2, v3, v4);
	for(int i = 0; i < n; i++) cout << v[i] << " ";
	cout << "\n";
}

signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	process();
}
#endif

Compilation message

train.cpp:21:21: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   21 | const int oo = 1e18 + 7, mod = 1e9 + 7;
      |                ~~~~~^~~
train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:40:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |  for(int i = 0; i < U.size(); i++){
      |                 ~~^~~~~~~~~~
train.cpp:79:20: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   79 |    vis[i] = deg[i] = 0;
      |             ~~~~~~~^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 14932 KB Output is correct
2 Correct 11 ms 15060 KB Output is correct
3 Correct 11 ms 15056 KB Output is correct
4 Correct 11 ms 15068 KB Output is correct
5 Correct 11 ms 15108 KB Output is correct
6 Correct 13 ms 15048 KB Output is correct
7 Correct 11 ms 14984 KB Output is correct
8 Correct 10 ms 15060 KB Output is correct
9 Correct 10 ms 15060 KB Output is correct
10 Correct 11 ms 15004 KB Output is correct
11 Correct 11 ms 15060 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 7 ms 14332 KB Output is correct
4 Correct 7 ms 14420 KB Output is correct
5 Correct 7 ms 14292 KB Output is correct
6 Correct 7 ms 14420 KB Output is correct
7 Correct 8 ms 14380 KB Output is correct
8 Correct 7 ms 14404 KB Output is correct
9 Correct 7 ms 14420 KB Output is correct
10 Correct 8 ms 14408 KB Output is correct
11 Correct 7 ms 14420 KB Output is correct
12 Correct 7 ms 14420 KB Output is correct
13 Correct 8 ms 14420 KB Output is correct
14 Correct 7 ms 14420 KB Output is correct
15 Correct 7 ms 14420 KB Output is correct
16 Correct 7 ms 14420 KB Output is correct
17 Correct 7 ms 14420 KB Output is correct
18 Correct 7 ms 14432 KB Output is correct
19 Correct 7 ms 14400 KB Output is correct
20 Correct 7 ms 14420 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 15320 KB Output is correct
2 Correct 151 ms 15512 KB Output is correct
3 Correct 203 ms 15500 KB Output is correct
4 Correct 13 ms 15444 KB Output is correct
5 Incorrect 13 ms 15444 KB 3rd lines differ - on the 854th token, expected: '1', found: '0'
6 Halted 0 ms 0 KB -

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 15112 KB Output is correct
2 Correct 12 ms 15308 KB Output is correct
3 Correct 16 ms 15444 KB Output is correct
4 Correct 13 ms 15576 KB Output is correct
5 Correct 14 ms 15444 KB Output is correct
6 Correct 13 ms 15444 KB Output is correct
7 Correct 15 ms 15444 KB Output is correct
8 Correct 12 ms 15444 KB Output is correct
9 Correct 12 ms 15332 KB Output is correct
10 Correct 13 ms 15444 KB Output is correct
11 Correct 12 ms 15448 KB Output is correct
12 Correct 13 ms 15444 KB Output is correct
13 Correct 13 ms 15444 KB Output is correct
14 Correct 12 ms 15408 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 12 ms 15316 KB 3rd lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 14932 KB Output is correct
2 Correct 11 ms 15060 KB Output is correct
3 Correct 11 ms 15056 KB Output is correct
4 Correct 11 ms 15068 KB Output is correct
5 Correct 11 ms 15108 KB Output is correct
6 Correct 13 ms 15048 KB Output is correct
7 Correct 11 ms 14984 KB Output is correct
8 Correct 10 ms 15060 KB Output is correct
9 Correct 10 ms 15060 KB Output is correct
10 Correct 11 ms 15004 KB Output is correct
11 Correct 11 ms 15060 KB Output is correct
12 Correct 7 ms 14420 KB Output is correct
13 Correct 8 ms 14420 KB Output is correct
14 Correct 7 ms 14332 KB Output is correct
15 Correct 7 ms 14420 KB Output is correct
16 Correct 7 ms 14292 KB Output is correct
17 Correct 7 ms 14420 KB Output is correct
18 Correct 8 ms 14380 KB Output is correct
19 Correct 7 ms 14404 KB Output is correct
20 Correct 7 ms 14420 KB Output is correct
21 Correct 8 ms 14408 KB Output is correct
22 Correct 7 ms 14420 KB Output is correct
23 Correct 7 ms 14420 KB Output is correct
24 Correct 8 ms 14420 KB Output is correct
25 Correct 7 ms 14420 KB Output is correct
26 Correct 7 ms 14420 KB Output is correct
27 Correct 7 ms 14420 KB Output is correct
28 Correct 7 ms 14420 KB Output is correct
29 Correct 7 ms 14432 KB Output is correct
30 Correct 7 ms 14400 KB Output is correct
31 Correct 7 ms 14420 KB Output is correct
32 Correct 76 ms 15320 KB Output is correct
33 Correct 151 ms 15512 KB Output is correct
34 Correct 203 ms 15500 KB Output is correct
35 Correct 13 ms 15444 KB Output is correct
36 Incorrect 13 ms 15444 KB 3rd lines differ - on the 854th token, expected: '1', found: '0'
37 Halted 0 ms 0 KB -