oj.uz

Submission #1093795

# Submission time Handle Problem Language Result Execution time Memory
1093795 2024-09-27T14:00:20 Z Abito Maze (JOI23_ho_t3) C++17
8 / 100
 101 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=0;i<n+2;i++){
		for (int j=0;j<m+2;j++){
			vis[i][j]=0;
			dis[i][j]=INT_MAX;
			p[i][j]=0;
			if (i && i<=n && j && j<=m) 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+2;i++) for (int j=0;j<m+2;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 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 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 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 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 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 3 ms 1628 KB Output is correct
21 Correct 5 ms 1116 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 3 ms 1116 KB Output is correct
24 Correct 4 ms 2136 KB Output is correct
25 Correct 3 ms 2140 KB Output is correct
26 Correct 5 ms 1152 KB Output is correct
27 Correct 4 ms 980 KB Output is correct
28 Correct 3 ms 1116 KB Output is correct
29 Correct 7 ms 1884 KB Output is correct
30 Correct 4 ms 1628 KB Output is correct
31 Correct 8 ms 2648 KB Output is correct
32 Correct 10 ms 1880 KB Output is correct
33 Correct 7 ms 1884 KB Output is correct
34 Correct 7 ms 4860 KB Output is correct
35 Correct 7 ms 4956 KB Output is correct
36 Correct 9 ms 2140 KB Output is correct
37 Correct 9 ms 1884 KB Output is correct
38 Correct 8 ms 2100 KB Output is correct
39 Correct 101 ms 16472 KB Output is correct
40 Correct 11 ms 2396 KB Output is correct
41 Correct 9 ms 6232 KB Output is correct
42 Correct 12 ms 2652 KB Output is correct
43 Correct 14 ms 5408 KB Output is correct
44 Correct 42 ms 10864 KB Output is correct
45 Correct 41 ms 12124 KB Output is correct
46 Correct 75 ms 22956 KB Output is correct
47 Correct 93 ms 16472 KB Output is correct
48 Correct 78 ms 16464 KB Output is correct
49 Correct 68 ms 45924 KB Output is correct
50 Correct 66 ms 45904 KB Output is correct
51 Correct 96 ms 16868 KB Output is correct
52 Correct 91 ms 16724 KB Output is correct
53 Correct 73 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 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 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 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 1 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 1 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 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 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 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 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 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 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 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 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 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 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 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 3 ms 1628 KB Output is correct
21 Correct 5 ms 1116 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 3 ms 1116 KB Output is correct
24 Correct 4 ms 2136 KB Output is correct
25 Correct 3 ms 2140 KB Output is correct
26 Correct 5 ms 1152 KB Output is correct
27 Correct 4 ms 980 KB Output is correct
28 Correct 3 ms 1116 KB Output is correct
29 Correct 7 ms 1884 KB Output is correct
30 Correct 4 ms 1628 KB Output is correct
31 Correct 8 ms 2648 KB Output is correct
32 Correct 10 ms 1880 KB Output is correct
33 Correct 7 ms 1884 KB Output is correct
34 Correct 7 ms 4860 KB Output is correct
35 Correct 7 ms 4956 KB Output is correct
36 Correct 9 ms 2140 KB Output is correct
37 Correct 9 ms 1884 KB Output is correct
38 Correct 8 ms 2100 KB Output is correct
39 Correct 101 ms 16472 KB Output is correct
40 Correct 11 ms 2396 KB Output is correct
41 Correct 9 ms 6232 KB Output is correct
42 Correct 12 ms 2652 KB Output is correct
43 Correct 14 ms 5408 KB Output is correct
44 Correct 42 ms 10864 KB Output is correct
45 Correct 41 ms 12124 KB Output is correct
46 Correct 75 ms 22956 KB Output is correct
47 Correct 93 ms 16472 KB Output is correct
48 Correct 78 ms 16464 KB Output is correct
49 Correct 68 ms 45924 KB Output is correct
50 Correct 66 ms 45904 KB Output is correct
51 Correct 96 ms 16868 KB Output is correct
52 Correct 91 ms 16724 KB Output is correct
53 Correct 73 ms 16468 KB Output is correct
54 Correct 0 ms 344 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 0 ms 348 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 1 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 348 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 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 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 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 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 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 3 ms 1628 KB Output is correct
21 Correct 5 ms 1116 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 3 ms 1116 KB Output is correct
24 Correct 4 ms 2136 KB Output is correct
25 Correct 3 ms 2140 KB Output is correct
26 Correct 5 ms 1152 KB Output is correct
27 Correct 4 ms 980 KB Output is correct
28 Correct 3 ms 1116 KB Output is correct
29 Correct 7 ms 1884 KB Output is correct
30 Correct 4 ms 1628 KB Output is correct
31 Correct 8 ms 2648 KB Output is correct
32 Correct 10 ms 1880 KB Output is correct
33 Correct 7 ms 1884 KB Output is correct
34 Correct 7 ms 4860 KB Output is correct
35 Correct 7 ms 4956 KB Output is correct
36 Correct 9 ms 2140 KB Output is correct
37 Correct 9 ms 1884 KB Output is correct
38 Correct 8 ms 2100 KB Output is correct
39 Correct 101 ms 16472 KB Output is correct
40 Correct 11 ms 2396 KB Output is correct
41 Correct 9 ms 6232 KB Output is correct
42 Correct 12 ms 2652 KB Output is correct
43 Correct 14 ms 5408 KB Output is correct
44 Correct 42 ms 10864 KB Output is correct
45 Correct 41 ms 12124 KB Output is correct
46 Correct 75 ms 22956 KB Output is correct
47 Correct 93 ms 16472 KB Output is correct
48 Correct 78 ms 16464 KB Output is correct
49 Correct 68 ms 45924 KB Output is correct
50 Correct 66 ms 45904 KB Output is correct
51 Correct 96 ms 16868 KB Output is correct
52 Correct 91 ms 16724 KB Output is correct
53 Correct 73 ms 16468 KB Output is correct
54 Correct 0 ms 344 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 0 ms 348 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 1 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 348 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 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 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 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 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 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 3 ms 1628 KB Output is correct
21 Correct 5 ms 1116 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 3 ms 1116 KB Output is correct
24 Correct 4 ms 2136 KB Output is correct
25 Correct 3 ms 2140 KB Output is correct
26 Correct 5 ms 1152 KB Output is correct
27 Correct 4 ms 980 KB Output is correct
28 Correct 3 ms 1116 KB Output is correct
29 Correct 7 ms 1884 KB Output is correct
30 Correct 4 ms 1628 KB Output is correct
31 Correct 8 ms 2648 KB Output is correct
32 Correct 10 ms 1880 KB Output is correct
33 Correct 7 ms 1884 KB Output is correct
34 Correct 7 ms 4860 KB Output is correct
35 Correct 7 ms 4956 KB Output is correct
36 Correct 9 ms 2140 KB Output is correct
37 Correct 9 ms 1884 KB Output is correct
38 Correct 8 ms 2100 KB Output is correct
39 Correct 101 ms 16472 KB Output is correct
40 Correct 11 ms 2396 KB Output is correct
41 Correct 9 ms 6232 KB Output is correct
42 Correct 12 ms 2652 KB Output is correct
43 Correct 14 ms 5408 KB Output is correct
44 Correct 42 ms 10864 KB Output is correct
45 Correct 41 ms 12124 KB Output is correct
46 Correct 75 ms 22956 KB Output is correct
47 Correct 93 ms 16472 KB Output is correct
48 Correct 78 ms 16464 KB Output is correct
49 Correct 68 ms 45924 KB Output is correct
50 Correct 66 ms 45904 KB Output is correct
51 Correct 96 ms 16868 KB Output is correct
52 Correct 91 ms 16724 KB Output is correct
53 Correct 73 ms 16468 KB Output is correct
54 Correct 0 ms 344 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 0 ms 348 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 1 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 348 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 -