oj.uz

Submission #252612

# Submission time Handle Problem Language Result Execution time Memory
252612 2020-07-25T22:11:07 Z super_j6 Dango Maker (JOI18_dango_maker) C++14
33 / 100
 128 ms 47616 KB 
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <string.h>
#include <random>
#include <chrono>
#include <vector>
#include <array>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<int, int>
#define f first
#define s second

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int mxn = 3000, k = 4, mxt = 20000, w = 3;
const char c[w + k] = {'R', 'G', 'W', '/', '|', '\\', '-'};
typedef pair<array<pi, w>, int> T;
int n, m;
int a[mxn][mxn], vis[mxn][mxn];
vector<T> v;
int dx[2 * k] = {1, 1, 1, 0, -1, -1, -1, 0};
int dy[2 * k] = {-1, 0, 1, 1, 1, 0, -1, -1};

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n >> m;
	
	for(int i = 0; i < n; i++)
	for(int j = 0; j < m; j++){
		char x;
		cin >> x;
		a[i][j] = find(c, c + w, x) - c;
	} 
	
	for(int i = 0; i < n; i++)
	for(int j = 0; j < m; j++){
		if(!~-a[i][j]){
			for(int p = k + 1; p < 2 * k; p += 2){
				v.push_back(T());
				v.back().f[1] = {i, j}, v.back().s = w + p % k; 
				for(int l = 0; l < 2; l++){
					int x = i + dx[(p + l * k) % (2 * k)], y = j + dy[(p + l * k) % (2 * k)];
					if(x >= 0 && y >= 0 && x < n && y < m && a[x][y] == 2 * l){
						v.back().f[2 * l] = {x, y};
					}else{
						v.pop_back();
						break;
					}
				}
			}
		}
	}
	
	int ret = 0;
	if(v.empty()) goto hell;
	memset(vis, -1, sizeof(vis));
	for(int t = 0, tt = 0; t < mxt; t += tt){
		int it = uniform_int_distribution<int>(0, v.size() - 1)(rng);
		
		int x = -1;
		for(pi i : v[it].f){
			if(~vis[i.f][i.s]){
				if(!~x) x = vis[i.f][i.s];
				else x = -2;
			}
		}
		
		if(x != -2 && x != it){
			if(~x){
				for(pi i : v[x].f)  vis[i.f][i.s] = -1;
				a[v[x].f[1].f][v[x].f[1].s] = 1;
			}
			for(pi i : v[it].f) vis[i.f][i.s] = it;
			a[v[it].f[1].f][v[it].f[1].s] = v[it].s;
			
			ret += !~x;
			if(tt && !~x) t = 0;
		}else if(!tt){
			tt = 1;
		}
	}
	
	hell:
	cout << ret << endl;
  	/*
	for(int i = 0; i < n; i++){
		for(int j = 0; j < m; j++) cout << c[a[i][j]];
		cout << endl;
	}
    */

	return 0;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 20 ms 35584 KB Output is correct
7 Correct 20 ms 35584 KB Output is correct
8 Correct 20 ms 35584 KB Output is correct
9 Correct 20 ms 35584 KB Output is correct
10 Correct 19 ms 35584 KB Output is correct
11 Correct 20 ms 35576 KB Output is correct
12 Correct 20 ms 35576 KB Output is correct
13 Correct 20 ms 35584 KB Output is correct
14 Correct 19 ms 35584 KB Output is correct
15 Correct 19 ms 35576 KB Output is correct
16 Correct 20 ms 35584 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 20 ms 35584 KB Output is correct
7 Correct 20 ms 35584 KB Output is correct
8 Correct 20 ms 35584 KB Output is correct
9 Correct 20 ms 35584 KB Output is correct
10 Correct 19 ms 35584 KB Output is correct
11 Correct 20 ms 35576 KB Output is correct
12 Correct 20 ms 35576 KB Output is correct
13 Correct 20 ms 35584 KB Output is correct
14 Correct 19 ms 35584 KB Output is correct
15 Correct 19 ms 35576 KB Output is correct
16 Correct 20 ms 35584 KB Output is correct
17 Correct 21 ms 35576 KB Output is correct
18 Correct 20 ms 35584 KB Output is correct
19 Correct 19 ms 35584 KB Output is correct
20 Correct 20 ms 35584 KB Output is correct
21 Correct 19 ms 35584 KB Output is correct
22 Correct 24 ms 35584 KB Output is correct
23 Correct 19 ms 35584 KB Output is correct
24 Correct 19 ms 35584 KB Output is correct
25 Correct 0 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 21 ms 35584 KB Output is correct
28 Correct 20 ms 35584 KB Output is correct
29 Correct 20 ms 35584 KB Output is correct
30 Correct 19 ms 35576 KB Output is correct
31 Correct 19 ms 35584 KB Output is correct
32 Correct 19 ms 35584 KB Output is correct
33 Correct 22 ms 35712 KB Output is correct
34 Correct 19 ms 35584 KB Output is correct
35 Correct 19 ms 35584 KB Output is correct
36 Correct 19 ms 35584 KB Output is correct
37 Correct 20 ms 35584 KB Output is correct
38 Correct 21 ms 35584 KB Output is correct
39 Correct 22 ms 35584 KB Output is correct
40 Correct 20 ms 35584 KB Output is correct
41 Correct 21 ms 35576 KB Output is correct
42 Correct 20 ms 35584 KB Output is correct
43 Correct 20 ms 35584 KB Output is correct
44 Correct 20 ms 35576 KB Output is correct
45 Correct 19 ms 35584 KB Output is correct
46 Correct 19 ms 35576 KB Output is correct
47 Correct 19 ms 35584 KB Output is correct
48 Correct 19 ms 35584 KB Output is correct
49 Correct 19 ms 35584 KB Output is correct
50 Correct 19 ms 35584 KB Output is correct
51 Correct 25 ms 35584 KB Output is correct
52 Correct 19 ms 35584 KB Output is correct
53 Correct 19 ms 35584 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 20 ms 35584 KB Output is correct
7 Correct 20 ms 35584 KB Output is correct
8 Correct 20 ms 35584 KB Output is correct
9 Correct 20 ms 35584 KB Output is correct
10 Correct 19 ms 35584 KB Output is correct
11 Correct 20 ms 35576 KB Output is correct
12 Correct 20 ms 35576 KB Output is correct
13 Correct 20 ms 35584 KB Output is correct
14 Correct 19 ms 35584 KB Output is correct
15 Correct 19 ms 35576 KB Output is correct
16 Correct 20 ms 35584 KB Output is correct
17 Correct 21 ms 35576 KB Output is correct
18 Correct 20 ms 35584 KB Output is correct
19 Correct 19 ms 35584 KB Output is correct
20 Correct 20 ms 35584 KB Output is correct
21 Correct 19 ms 35584 KB Output is correct
22 Correct 24 ms 35584 KB Output is correct
23 Correct 19 ms 35584 KB Output is correct
24 Correct 19 ms 35584 KB Output is correct
25 Correct 0 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 21 ms 35584 KB Output is correct
28 Correct 20 ms 35584 KB Output is correct
29 Correct 20 ms 35584 KB Output is correct
30 Correct 19 ms 35576 KB Output is correct
31 Correct 19 ms 35584 KB Output is correct
32 Correct 19 ms 35584 KB Output is correct
33 Correct 22 ms 35712 KB Output is correct
34 Correct 19 ms 35584 KB Output is correct
35 Correct 19 ms 35584 KB Output is correct
36 Correct 19 ms 35584 KB Output is correct
37 Correct 20 ms 35584 KB Output is correct
38 Correct 21 ms 35584 KB Output is correct
39 Correct 22 ms 35584 KB Output is correct
40 Correct 20 ms 35584 KB Output is correct
41 Correct 21 ms 35576 KB Output is correct
42 Correct 20 ms 35584 KB Output is correct
43 Correct 20 ms 35584 KB Output is correct
44 Correct 20 ms 35576 KB Output is correct
45 Correct 19 ms 35584 KB Output is correct
46 Correct 19 ms 35576 KB Output is correct
47 Correct 19 ms 35584 KB Output is correct
48 Correct 19 ms 35584 KB Output is correct
49 Correct 19 ms 35584 KB Output is correct
50 Correct 19 ms 35584 KB Output is correct
51 Correct 25 ms 35584 KB Output is correct
52 Correct 19 ms 35584 KB Output is correct
53 Correct 19 ms 35584 KB Output is correct
54 Correct 20 ms 35592 KB Output is correct
55 Correct 25 ms 47616 KB Output is correct
56 Correct 22 ms 35832 KB Output is correct
57 Correct 28 ms 43776 KB Output is correct
58 Incorrect 128 ms 46820 KB Output isn't correct
59 Halted 0 ms 0 KB -