oj.uz

Submission #291117

# Submission time Handle Problem Language Result Execution time Memory
291117 2020-09-04T17:19:56 Z shayan_p Toy Train (IOI17_train) C++17
11 / 100
 245 ms 1528 KB 
#include<bits/stdc++.h>
#include "train.h"

#define F first
#define S second
#define PB push_back
#define sz(s) (int(s.size()))
#define bit(n, k) (((n)>>(k))&1)

using namespace std;

typedef pair<int, int> pii;
typedef long long ll;

const int maxn = 5010, inf = 1e9 + 10, mod = 1e9 + 7;

bool who[maxn], del[maxn], pwr[maxn];
vector<int> v[maxn], rv[maxn];
int n;

int d[maxn];

bool iter(){    
    for(int i = 0; i < n; i++){
	d[i] = sz(v[i]);
    }
    queue<int> q;
    for(int i = 0; i < n; i++){
	if(pwr[i] && !del[i]){
	    q.push(i);
	}
    }
    while(sz(q)){
	int u = q.front();
	q.pop();
	d[u] = -1;
	for(int y : rv[u]){
	    if(!del[y] && who[y] && d[y] >= 0)
		q.push(y);
	    if(!del[y] && !who[y] && --d[y] == 0)
		q.push(y);
	}
    }
    bool yes = 0;	
    for(int i = 0; i < n; i++){
	if(!del[i] && d[i] >= 0)
	    del[i] = 1, yes = 1;
    }
    for(int i = 0; i < n; i++){
	if(pwr[i] && !del[i]){
	    bool any = 0, all = 1;
	    for(int x : v[i])
		any|= del[x], all&= del[x];
	    if(who[i]){
		if(all){
		    del[i] = 1;
		    yes = 1;
		}
	    }
	    else{
		if(any){
		    del[i] = 1;
		    yes = 1;
		}
	    }
	}
    }

    ///// chert
    for(int i = 0; i < n; i++){
	if(!del[i]){
	    bool any = 0;
	    for(int x : v[i])
		any|= del[x];
	    if(any)
		del[i] = 1, yes = 1;
	}
    }

    return yes;
}

vector<int> who_wins(vector<int> _a, vector<int> _r, vector<int> e1, vector<int> e2){
    ::n = sz(_a);
    for(int i = 0; i < n; i++){
	who[i] = _a[i];
	pwr[i] = _r[i];
    }
    for(int i = 0; i < sz(e1); i++){
	v[e1[i]].PB(e2[i]);
	rv[e2[i]].PB(e1[i]);
    }
    int DID = 0;
    while(DID <= 5){
	DID+= !iter();
    }
    vector<int> ans;
    for(int i = 0; i < n; i++){
	ans.PB(!del[i]);
    }
    return ans;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 1152 KB 3rd lines differ - on the 14th token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 512 KB 3rd lines differ - on the 2nd token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 114 ms 1528 KB Output is correct
2 Correct 169 ms 1528 KB Output is correct
3 Correct 245 ms 1488 KB Output is correct
4 Incorrect 12 ms 1408 KB 3rd lines differ - on the 1st token, expected: '1', found: '0'
5 Halted 0 ms 0 KB -

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1280 KB Output is correct
2 Correct 12 ms 1404 KB Output is correct
3 Correct 13 ms 1408 KB Output is correct
4 Correct 12 ms 1408 KB Output is correct
5 Correct 12 ms 1408 KB Output is correct
6 Correct 13 ms 1408 KB Output is correct
7 Correct 13 ms 1408 KB Output is correct
8 Correct 10 ms 1408 KB Output is correct
9 Correct 11 ms 1408 KB Output is correct
10 Correct 12 ms 1408 KB Output is correct
11 Correct 13 ms 1408 KB Output is correct
12 Correct 13 ms 1408 KB Output is correct
13 Correct 12 ms 1408 KB Output is correct
14 Correct 12 ms 1408 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 11 ms 1448 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 Incorrect 8 ms 1152 KB 3rd lines differ - on the 14th token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -