oj.uz

Submission #1093794

# Submission time Handle Problem Language Result Execution time Memory
1093794 2024-09-27T13:58:48 Z Abito Maze (JOI23_ho_t3) C++17
8 / 100
 98 ms 45924 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
//#define int long long
#define ll long long
typedef unsigned long long ull;
using namespace std;
const int N=1300;
int n,m,k,sx,sy,ex,ey,mvx[]={1,0,-1,0},mvy[]={0,1,0,-1};
bool ok(int x,int y){
	return x>=1 && x<=n && y>=1 && y<=m;
}
int32_t main(){
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
	cin>>n>>m>>k>>sx>>sy>>ex>>ey;
	int dis[n+2][m+2],p[n+2][m+2];
	char a[n+2][m+2];
	bool vis[n+2][m+2];
	for (int i=1;i<=n;i++){
		for (int j=1;j<=m;j++){
			vis[i][j]=0;
			dis[i][j]=INT_MAX;
			p[i][j]=0;
			cin>>a[i][j];
		}
	}
	if ((2*k+1)*(2*k+1)<=N){
		deque<pair<int,int>> dq;
		dq.push_front({sx,sy});
		dis[sx][sy]=0;
		while (!dq.empty()){
			int x=dq.front().F,y=dq.front().S;
			dq.pop_front();
			if (vis[x][y]) continue;
			//cout<<x<<' '<<y<<' '<<dis[x][y]<<endl;
			vis[x][y]=1;
			for (int i=0;i<4;i++){
				int nx=mvx[i]+x,ny=mvy[i]+y;
				if (!ok(nx,ny) || a[x][y]!='.') continue;
				if (dis[nx][ny]>dis[x][y]){
					dis[nx][ny]=dis[x][y];
					dq.push_front({nx,ny});
				}
			}
			for (int i=max(1,x-k);i<=min(n,x+k);i++){
				for (int j=max(1,y-k);j<=min(m,y+k);j++){
					if (i==x-k && j==y-k) continue;
					if (i==x-k && j==y+k) continue;
					if (i==x+k && j==y-k) continue;
					if (i==x+k && j==y+k) continue;
					if (dis[i][j]>dis[x][y]+1){
						dis[i][j]=dis[x][y]+1;
						dq.push_back({i,j});
					}
				}
			}
		}
	}
	else{
		vector<pair<int,int>> q;
		dis[sx][sy]=0;
		vis[sx][sy]=1;
		q.pb({sx,sy});
		for (int t=0;t<INT_MAX;t++){
			for (int i=0;i<q.size();i++){
				int x=q[i].F,y=q[i].S;
				dis[x][y]=t;
				for (int j=0;j<4;j++){
					int nx=x+mvx[j],ny=y+mvy[j];
					if (vis[nx][ny] || !ok(nx,ny)) continue;
					dis[nx][ny]=t;
					vis[nx][ny]=1;
					q.pb({nx,ny});
				}
			}
			//for (auto u:q) cout<<u.F<<' '<<u.S<<"	";
			//cout<<endl;
			if (vis[ex][ey]) break;
			for (int i=0;i<=n+100;i++) for (int j=0;j<=m+100;j++) p[i][j]=0;
			for (int i=0;i<q.size();i++){
				int x=q[i].F,y=q[i].S;
				p[max(1,x-k)][max(1,y-k)]++;
				p[max(1,x-k)][min(m,y+k)+1]--;
				p[min(n,x+k)+1][max(1,y-k)]--;
				p[min(n,x+k)+1][min(m,y+k)+1]--;
				if (x-k>=1 && y-k>=1){
					p[x-k][y-k]--;
					p[x-k+1][y-k]++;
					p[x-k][y-k+1]++;
					p[x-k+1][y-k+1]--;
				}
				if (x-k>=1 && y+k<=m){
					p[x-k][y+k]--;
					p[x-k+1][y+k]++;
					p[x-k][y+k+1]++;
					p[x-k+1][y+k+1]--;
				}
				if (x+k<=n && y-k>=1){
					p[x+k][y-k]--;
					p[x+k+1][y-k]++;
					p[x+k][y-k+1]++;
					p[x+k+1][y-k+1]--;
				}
				if (x+k<=n && y+k<=m){
					p[x+k][y+k]--;
					p[x+k+1][y+k]++;
					p[x+k][y+k+1]++;
					p[x+k+1][y+k+1]--;
				}
			}
			for (int i=1;i<=n;i++){
				for (int j=1;j<=m;j++){
					p[i][j]+=p[i-1][j]+p[i][j-1]-p[i-1][j-1];
					if (p[i][j]>0 && !vis[i][j]) q.pb({i,j}),vis[i][j]=1;
					//cout<<p[i][j]<<' ';
				}//cout<<endl;
			}//cout<<endl;
		}
	}
	cout<<dis[ex][ey]<<endl;
	return 0;
}

Compilation message

Main.cpp: In function 'int32_t main()':
Main.cpp:73:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |    for (int i=0;i<q.size();i++){
      |                 ~^~~~~~~~~
Main.cpp:88:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |    for (int i=0;i<q.size();i++){
      |                 ~^~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 4 ms 860 KB Output is correct
20 Correct 2 ms 1856 KB Output is correct
21 Correct 3 ms 1364 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 4 ms 1108 KB Output is correct
24 Correct 3 ms 2264 KB Output is correct
25 Correct 3 ms 2276 KB Output is correct
26 Correct 4 ms 1152 KB Output is correct
27 Correct 4 ms 1116 KB Output is correct
28 Correct 3 ms 1116 KB Output is correct
29 Correct 7 ms 1884 KB Output is correct
30 Correct 3 ms 1628 KB Output is correct
31 Correct 8 ms 2712 KB Output is correct
32 Correct 9 ms 2096 KB Output is correct
33 Correct 7 ms 1884 KB Output is correct
34 Correct 7 ms 4956 KB Output is correct
35 Correct 5 ms 4956 KB Output is correct
36 Correct 9 ms 2076 KB Output is correct
37 Correct 9 ms 1880 KB Output is correct
38 Correct 9 ms 2004 KB Output is correct
39 Correct 76 ms 16472 KB Output is correct
40 Correct 10 ms 2396 KB Output is correct
41 Correct 9 ms 5976 KB Output is correct
42 Correct 11 ms 2648 KB Output is correct
43 Correct 11 ms 5212 KB Output is correct
44 Correct 40 ms 10688 KB Output is correct
45 Correct 38 ms 12124 KB Output is correct
46 Correct 77 ms 22868 KB Output is correct
47 Correct 92 ms 16476 KB Output is correct
48 Correct 90 ms 16620 KB Output is correct
49 Correct 61 ms 45924 KB Output is correct
50 Correct 57 ms 45924 KB Output is correct
51 Correct 95 ms 16724 KB Output is correct
52 Correct 92 ms 16720 KB Output is correct
53 Correct 98 ms 16468 KB Output is correct

Subtask #2
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 372 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Incorrect 0 ms 348 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Incorrect 0 ms 348 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 372 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Incorrect 0 ms 348 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 372 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Incorrect 0 ms 348 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 4 ms 860 KB Output is correct
20 Correct 2 ms 1856 KB Output is correct
21 Correct 3 ms 1364 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 4 ms 1108 KB Output is correct
24 Correct 3 ms 2264 KB Output is correct
25 Correct 3 ms 2276 KB Output is correct
26 Correct 4 ms 1152 KB Output is correct
27 Correct 4 ms 1116 KB Output is correct
28 Correct 3 ms 1116 KB Output is correct
29 Correct 7 ms 1884 KB Output is correct
30 Correct 3 ms 1628 KB Output is correct
31 Correct 8 ms 2712 KB Output is correct
32 Correct 9 ms 2096 KB Output is correct
33 Correct 7 ms 1884 KB Output is correct
34 Correct 7 ms 4956 KB Output is correct
35 Correct 5 ms 4956 KB Output is correct
36 Correct 9 ms 2076 KB Output is correct
37 Correct 9 ms 1880 KB Output is correct
38 Correct 9 ms 2004 KB Output is correct
39 Correct 76 ms 16472 KB Output is correct
40 Correct 10 ms 2396 KB Output is correct
41 Correct 9 ms 5976 KB Output is correct
42 Correct 11 ms 2648 KB Output is correct
43 Correct 11 ms 5212 KB Output is correct
44 Correct 40 ms 10688 KB Output is correct
45 Correct 38 ms 12124 KB Output is correct
46 Correct 77 ms 22868 KB Output is correct
47 Correct 92 ms 16476 KB Output is correct
48 Correct 90 ms 16620 KB Output is correct
49 Correct 61 ms 45924 KB Output is correct
50 Correct 57 ms 45924 KB Output is correct
51 Correct 95 ms 16724 KB Output is correct
52 Correct 92 ms 16720 KB Output is correct
53 Correct 98 ms 16468 KB Output is correct
54 Correct 0 ms 344 KB Output is correct
55 Correct 0 ms 344 KB Output is correct
56 Correct 0 ms 344 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 344 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 372 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Incorrect 0 ms 348 KB Output isn't correct
67 Halted 0 ms 0 KB -

Subtask #7
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 4 ms 860 KB Output is correct
20 Correct 2 ms 1856 KB Output is correct
21 Correct 3 ms 1364 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 4 ms 1108 KB Output is correct
24 Correct 3 ms 2264 KB Output is correct
25 Correct 3 ms 2276 KB Output is correct
26 Correct 4 ms 1152 KB Output is correct
27 Correct 4 ms 1116 KB Output is correct
28 Correct 3 ms 1116 KB Output is correct
29 Correct 7 ms 1884 KB Output is correct
30 Correct 3 ms 1628 KB Output is correct
31 Correct 8 ms 2712 KB Output is correct
32 Correct 9 ms 2096 KB Output is correct
33 Correct 7 ms 1884 KB Output is correct
34 Correct 7 ms 4956 KB Output is correct
35 Correct 5 ms 4956 KB Output is correct
36 Correct 9 ms 2076 KB Output is correct
37 Correct 9 ms 1880 KB Output is correct
38 Correct 9 ms 2004 KB Output is correct
39 Correct 76 ms 16472 KB Output is correct
40 Correct 10 ms 2396 KB Output is correct
41 Correct 9 ms 5976 KB Output is correct
42 Correct 11 ms 2648 KB Output is correct
43 Correct 11 ms 5212 KB Output is correct
44 Correct 40 ms 10688 KB Output is correct
45 Correct 38 ms 12124 KB Output is correct
46 Correct 77 ms 22868 KB Output is correct
47 Correct 92 ms 16476 KB Output is correct
48 Correct 90 ms 16620 KB Output is correct
49 Correct 61 ms 45924 KB Output is correct
50 Correct 57 ms 45924 KB Output is correct
51 Correct 95 ms 16724 KB Output is correct
52 Correct 92 ms 16720 KB Output is correct
53 Correct 98 ms 16468 KB Output is correct
54 Correct 0 ms 344 KB Output is correct
55 Correct 0 ms 344 KB Output is correct
56 Correct 0 ms 344 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 344 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 372 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Incorrect 0 ms 348 KB Output isn't correct
67 Halted 0 ms 0 KB -

Subtask #8
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 4 ms 860 KB Output is correct
20 Correct 2 ms 1856 KB Output is correct
21 Correct 3 ms 1364 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 4 ms 1108 KB Output is correct
24 Correct 3 ms 2264 KB Output is correct
25 Correct 3 ms 2276 KB Output is correct
26 Correct 4 ms 1152 KB Output is correct
27 Correct 4 ms 1116 KB Output is correct
28 Correct 3 ms 1116 KB Output is correct
29 Correct 7 ms 1884 KB Output is correct
30 Correct 3 ms 1628 KB Output is correct
31 Correct 8 ms 2712 KB Output is correct
32 Correct 9 ms 2096 KB Output is correct
33 Correct 7 ms 1884 KB Output is correct
34 Correct 7 ms 4956 KB Output is correct
35 Correct 5 ms 4956 KB Output is correct
36 Correct 9 ms 2076 KB Output is correct
37 Correct 9 ms 1880 KB Output is correct
38 Correct 9 ms 2004 KB Output is correct
39 Correct 76 ms 16472 KB Output is correct
40 Correct 10 ms 2396 KB Output is correct
41 Correct 9 ms 5976 KB Output is correct
42 Correct 11 ms 2648 KB Output is correct
43 Correct 11 ms 5212 KB Output is correct
44 Correct 40 ms 10688 KB Output is correct
45 Correct 38 ms 12124 KB Output is correct
46 Correct 77 ms 22868 KB Output is correct
47 Correct 92 ms 16476 KB Output is correct
48 Correct 90 ms 16620 KB Output is correct
49 Correct 61 ms 45924 KB Output is correct
50 Correct 57 ms 45924 KB Output is correct
51 Correct 95 ms 16724 KB Output is correct
52 Correct 92 ms 16720 KB Output is correct
53 Correct 98 ms 16468 KB Output is correct
54 Correct 0 ms 344 KB Output is correct
55 Correct 0 ms 344 KB Output is correct
56 Correct 0 ms 344 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 344 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 372 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Incorrect 0 ms 348 KB Output isn't correct
67 Halted 0 ms 0 KB -