Submission #309224

# Submission time Handle Problem Language Result Execution time Memory
309224 2020-10-02T22:33:54 Z sofapuden Mecho (IOI09_mecho) C++14
20 / 100
813 ms 65540 KB
#include <bits/stdc++.h>

using namespace std;

#define f first
#define s second

int n, k;
bool ok = 0;

pair<int,int> sta, en;

vector<string> G;
vector<vector<int>> V;
vector<vector<int>> vis;

queue<pair<pair<int,int>,int>> Q;

auto cmp = [](pair<pair<int,int>,pair<int,int>> l, pair<pair<int,int>,pair<int,int>> r){
	if(l.f.f != r.f.f)return l.f.f < r.f.f;
	return l.f.s > r.f.s;
};
priority_queue<pair<pair<int,int>,pair<int,int>>, vector<pair<pair<int,int>,pair<int,int>>>, decltype(cmp)> PQ(cmp);

void fin(pair<pair<int,int>,pair<int,int>> now){
	if(vis[now.s.f][now.s.s] < now.f.s)return;
	vis[now.s.f][now.s.s] = now.f.s;
	if(now.s == en){cout << now.f.f << "\n";ok = 1;return;}
	if(now.s.f != n-1){
		if(V[now.s.f+1][now.s.s] > now.f.s/k+now.f.s/k-1){
			PQ.push({{min(V[now.s.f+1][now.s.s]-now.f.s/k-1,now.f.f), now.f.s+1},{now.s.f+1,now.s.s}});
		}
	}
	if(now.s.s != n-1){
		if(V[now.s.f][now.s.s+1] > now.f.s/k+now.f.s/k-1){
			PQ.push({{min(V[now.s.f][now.s.s+1]-now.f.s/k-1,now.f.f), now.f.s+1},{now.s.f,now.s.s+1}});
		}
	}
	
	if(now.s.f != 0){
		if(V[now.s.f-1][now.s.s] > now.f.s/k+now.f.s/k-1){
			PQ.push({{min(V[now.s.f-1][now.s.s]-now.f.s/k-1,now.f.f), now.f.s+1},{now.s.f-1,now.s.s}});
		}
	}
	
	if(now.s.s != 0){
		if(V[now.s.f][now.s.s-1] > (now.f.s/k)+now.f.s/k-1){
			PQ.push({{min(V[now.s.f][now.s.s-1]-now.f.s/k-1,now.f.f), now.f.s+1},{now.s.f,now.s.s-1}});
		}
	}

			
}
	
	
	

void search(pair<pair<int,int>,int> now){
	if(now.f.f < 0 || now.f.s < 0 || now.f.f >= n || now.f.s >= n)return;
	if(V[now.f.f][now.f.s] != -1)return;
	V[now.f.f][now.f.s] = now.s;
	Q.push({{now.f.f-1,now.f.s},now.s+1});
	Q.push({{now.f.f+1,now.f.s},now.s+1});
	Q.push({{now.f.f,now.f.s-1},now.s+1});
	Q.push({{now.f.f,now.f.s+1},now.s+1});
}

int main(){ 
	cin >> n >> k;
	G.resize(n);
	V.resize(n, vector<int> (n,-1));
	vis.resize(n, vector<int> (n, 100000));
	
	for(auto &x : G)cin >> x;
	for(int i = 0; i < n; ++i){
		for(int j = 0; j < n; ++j){
			if(G[i][j] == 'T')V[i][j] = -2;
			if(G[i][j] == 'M')sta = {i,j};
			if(G[i][j] == 'D'){en = {i,j};V[i][j] = 100000;}
			if(G[i][j] == 'H')Q.push({{i,j},0});
		}
	}
	while(!Q.empty()){
		auto x = Q.front();
		Q.pop();
		search(x);
	}
	//for(int i = 0; i < n; ++i){
		//for(int j = 0; j < n; ++j){
			//cout << V[i][j] << " ";
		//}
		//cout << "\n";
	//}
	PQ.push({{V[sta.f][sta.s]-1, 0},sta});
	while(!PQ.empty()){
		auto x = PQ.top();
		PQ.pop();
		//cout << x.f.f << " " << x.f.s << " " << x.s.f << " " << x.s.s << "\n";
		fin(x);
		if(ok)break;
	}
	if(!ok)cout << -1 << "\n";
}
	
	
	
# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 256 KB Output isn't correct
2 Incorrect 0 ms 256 KB Output isn't correct
3 Incorrect 0 ms 256 KB Output isn't correct
4 Incorrect 0 ms 256 KB Output isn't correct
5 Correct 0 ms 256 KB Output is correct
6 Incorrect 0 ms 256 KB Output isn't correct
7 Runtime error 486 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
8 Correct 0 ms 256 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Runtime error 709 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
14 Runtime error 645 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
15 Incorrect 1 ms 256 KB Output isn't correct
16 Correct 0 ms 256 KB Output is correct
17 Incorrect 0 ms 384 KB Output isn't correct
18 Correct 1 ms 256 KB Output is correct
19 Incorrect 0 ms 384 KB Output isn't correct
20 Correct 1 ms 384 KB Output is correct
21 Incorrect 1 ms 384 KB Output isn't correct
22 Correct 1 ms 384 KB Output is correct
23 Incorrect 1 ms 384 KB Output isn't correct
24 Correct 1 ms 384 KB Output is correct
25 Incorrect 1 ms 384 KB Output isn't correct
26 Correct 1 ms 384 KB Output is correct
27 Incorrect 1 ms 384 KB Output isn't correct
28 Correct 1 ms 384 KB Output is correct
29 Incorrect 1 ms 384 KB Output isn't correct
30 Correct 1 ms 384 KB Output is correct
31 Incorrect 1 ms 384 KB Output isn't correct
32 Correct 1 ms 384 KB Output is correct
33 Incorrect 12 ms 1536 KB Output isn't correct
34 Correct 13 ms 1408 KB Output is correct
35 Runtime error 419 ms 65536 KB Execution killed with signal 9 (could be triggered by violating memory limits)
36 Incorrect 15 ms 1792 KB Output isn't correct
37 Correct 16 ms 1792 KB Output is correct
38 Runtime error 428 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
39 Incorrect 20 ms 2176 KB Output isn't correct
40 Correct 21 ms 2304 KB Output is correct
41 Runtime error 432 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
42 Incorrect 26 ms 2688 KB Output isn't correct
43 Correct 25 ms 2816 KB Output is correct
44 Runtime error 437 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
45 Incorrect 34 ms 3328 KB Output isn't correct
46 Correct 30 ms 3200 KB Output is correct
47 Runtime error 456 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
48 Incorrect 39 ms 3832 KB Output isn't correct
49 Correct 35 ms 3712 KB Output is correct
50 Runtime error 453 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
51 Incorrect 45 ms 4348 KB Output isn't correct
52 Incorrect 43 ms 4344 KB Output isn't correct
53 Runtime error 458 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
54 Incorrect 55 ms 4864 KB Output isn't correct
55 Incorrect 52 ms 4864 KB Output isn't correct
56 Runtime error 476 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
57 Incorrect 62 ms 5368 KB Output isn't correct
58 Incorrect 63 ms 5504 KB Output isn't correct
59 Runtime error 488 ms 65536 KB Execution killed with signal 9 (could be triggered by violating memory limits)
60 Incorrect 70 ms 6264 KB Output isn't correct
61 Incorrect 74 ms 6136 KB Output isn't correct
62 Runtime error 501 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
63 Incorrect 78 ms 6144 KB Output isn't correct
64 Correct 132 ms 6144 KB Output is correct
65 Correct 133 ms 6136 KB Output is correct
66 Incorrect 98 ms 6136 KB Output isn't correct
67 Correct 94 ms 6144 KB Output is correct
68 Incorrect 88 ms 6392 KB Output isn't correct
69 Correct 98 ms 6424 KB Output is correct
70 Incorrect 82 ms 6392 KB Output isn't correct
71 Incorrect 78 ms 6392 KB Output isn't correct
72 Correct 80 ms 6392 KB Output is correct
73 Runtime error 474 ms 65536 KB Execution killed with signal 9 (could be triggered by violating memory limits)
74 Runtime error 705 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
75 Runtime error 596 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
76 Runtime error 616 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
77 Runtime error 813 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
78 Runtime error 693 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
79 Runtime error 698 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
80 Runtime error 701 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
81 Runtime error 708 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
82 Runtime error 694 ms 65536 KB Execution killed with signal 9 (could be triggered by violating memory limits)
83 Runtime error 745 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
84 Runtime error 693 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
85 Runtime error 718 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
86 Runtime error 770 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
87 Runtime error 675 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
88 Runtime error 491 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
89 Runtime error 704 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
90 Runtime error 502 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
91 Runtime error 494 ms 65536 KB Execution killed with signal 9 (could be triggered by violating memory limits)
92 Runtime error 498 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)