oj.uz

Submission #291116

# Submission time Handle Problem Language Result Execution time Memory
291116 2020-09-04T17:15:37 Z shayan_p Toy Train (IOI17_train) C++17
11 / 100
 338 ms 1696 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;


    ///// 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;
	}
    }

	
    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;
		}
	    }
	}
    }
    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 122 ms 1528 KB Output is correct
2 Correct 226 ms 1528 KB Output is correct
3 Correct 338 ms 1528 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 10 ms 1280 KB Output is correct
2 Correct 12 ms 1536 KB Output is correct
3 Correct 10 ms 1664 KB Output is correct
4 Correct 11 ms 1664 KB Output is correct
5 Correct 12 ms 1664 KB Output is correct
6 Correct 13 ms 1664 KB Output is correct
7 Correct 12 ms 1656 KB Output is correct
8 Correct 10 ms 1664 KB Output is correct
9 Correct 12 ms 1536 KB Output is correct
10 Correct 12 ms 1664 KB Output is correct
11 Correct 12 ms 1664 KB Output is correct
12 Correct 12 ms 1696 KB Output is correct
13 Correct 12 ms 1664 KB Output is correct
14 Correct 11 ms 1536 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 12 ms 1444 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 -