oj.uz

Submission #933358

# Submission time Handle Problem Language Result Execution time Memory
933358 2024-02-25T14:49:13 Z pcc Maze (JOI23_ho_t3) C++14
24 / 100
 618 ms 260044 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pll pair<ll,ll>
#define pii pair<int,int>
#define fs first
#define sc second
#define tlll tuple<ll,ll,ll>
#define int ll

struct node{
	int lvl,r,c,d;
	node(){lvl = r = c = d = 0;}
	node(int lv,int rr,int cc,int dd):lvl(lv),r(rr),c(cc),d(dd){}
	bool operator<(node b)const{
		return d<b.d;
	}
	bool operator>(node b)const{
		return d>b.d;
	}
};

int R,C,N;
vector<string> arr;
vector<vector<int>> dist[5];
pii s,e;

deque<node> dq;

pii dir[] = {{0,1},{0,-1},{1,0},{-1,0}};
pii dir2[] = {{1,1},{1,-1},{-1,-1},{-1,1}};

inline void add(int lvl,int r,int c,int d){
	if(lvl>4||r<0||c<0||r>=R||c>=C)return;
	//cout<<lvl<<','<<r<<' '<<c<<' '<<d<<endl;
	if(dist[lvl][r][c] != -1&&dist[lvl][r][c]<=d)return;
	dist[lvl][r][c] = d;
	if(dq.empty()||dq.back().d<=d)dq.push_back(node(lvl,r,c,d));
	else dq.push_front(node(lvl,r,c,d));
}

void add_center(int r,int c,int d){//extend radius of N*2-1 square
	pii row = {max((int)0,r-N+1),min(r+N-1,R-1)};
	pii col = {max((int)0,c-N+1),min(c+N-1,C-1)};
	for(int i = 0;i<4;i++){
		int nr = r-dir2[i].fs*(N-1),nc = c-dir2[i].sc*(N-1);
		if(nr>=0&&nr<R&&nc>=0&&nc<C)add(i,nr,nc,d);
		else {
			nr = max((int)0,nr),nr = min(nr,R-1),nc = max((int)0,nc),nc = min(nc,C-1);
			int er,ec;
			if(dir2[i].fs>0)er = (nr+N*2-2)/(N*2+1)*(N*2+1);
			else er = nr/(N*2+1)*(N*2+1);
			if(dir2[i].sc>0)ec = (nc+N*2-2)/(N*2+1)*(N*2+1);
			else ec = nc/(N*2+1)*(N*2+1);
			er = min(er,R-1),ec = min(ec,C-1);
			if(row.fs<=er&&er<=row.sc&&col.fs<=ec&&ec<=col.sc)add(i,nr,nc,d);
		}
	}
	return;
}

void BFS(pii s){
	add(4,s.fs,s.sc,0);
	dist[4][s.fs][s.sc] = 0;
	while(!dq.empty()){
		auto now = dq.front();
		dq.pop_front();
		//cout<<now.lvl<<','<<now.r<<' '<<now.c<<':'<<now.d<<":"<<dist[now.lvl][now.r][now.c]<<endl;
		assert(dist[now.lvl][now.r][now.c]<=now.d);
		if(dist[now.lvl][now.r][now.c] != now.d)continue;
		if(now.lvl == 4){
			add_center(now.r,now.c,now.d+1);
			for(auto &d:dir){
				int nr = d.fs+now.r,nc = d.sc+now.c;
				//cout<<nr<<','<<nc<<endl;
				if(nr>=0&&nc>=0&&nr<R&&nc<C){
					add_center(nr,nc,now.d+1);
					add(4,nr,nc,now.d+(arr[nr][nc] == '#'));
				}
			}
		}
		else{
			add(4,now.r,now.c,now.d);
			int nr = now.r+dir2[now.lvl].fs,nc = now.c+dir2[now.lvl].sc;
			if(nr>=0&&nr<R&&now.r%(N*2-1) != 0)add(now.lvl,nr,now.c,now.d);
			if(nc>=0&&nc<C&&now.c%(N*2-1) != 0)add(now.lvl,now.r,nc,now.d);
		}
	}
	return;
}

main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>R>>C>>N;
	arr = vector<string>(R);
	dist[0] = dist[1] = dist[2] = dist[3] = dist[4] = vector<vector<int>>(R,vector<int>(C,-1));
	cin>>s.fs>>s.sc>>e.fs>>e.sc;
	s.fs--,s.sc--,e.fs--,e.sc--;
	for(auto &i:arr)cin>>i;
	BFS(s);
	cout<<dist[4][e.fs][e.sc];
}

Compilation message

Main.cpp:93:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   93 | main(){
      | ^~~~

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 1 ms 604 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 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 1 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 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 16 ms 2980 KB Output is correct
20 Correct 12 ms 2396 KB Output is correct
21 Correct 22 ms 10984 KB Output is correct
22 Correct 17 ms 3164 KB Output is correct
23 Correct 15 ms 2908 KB Output is correct
24 Correct 12 ms 3164 KB Output is correct
25 Correct 10 ms 3164 KB Output is correct
26 Correct 17 ms 4184 KB Output is correct
27 Correct 17 ms 3788 KB Output is correct
28 Correct 16 ms 3164 KB Output is correct
29 Correct 38 ms 6624 KB Output is correct
30 Correct 14 ms 2984 KB Output is correct
31 Correct 53 ms 26648 KB Output is correct
32 Correct 44 ms 7000 KB Output is correct
33 Correct 37 ms 6488 KB Output is correct
34 Correct 27 ms 7260 KB Output is correct
35 Correct 27 ms 7260 KB Output is correct
36 Correct 43 ms 8760 KB Output is correct
37 Correct 42 ms 7516 KB Output is correct
38 Correct 42 ms 7032 KB Output is correct
39 Correct 476 ms 61428 KB Output is correct
40 Correct 46 ms 7260 KB Output is correct
41 Correct 32 ms 9052 KB Output is correct
42 Correct 61 ms 9232 KB Output is correct
43 Correct 54 ms 10844 KB Output is correct
44 Correct 200 ms 30520 KB Output is correct
45 Correct 205 ms 33112 KB Output is correct
46 Correct 618 ms 259192 KB Output is correct
47 Correct 455 ms 62036 KB Output is correct
48 Correct 490 ms 61324 KB Output is correct
49 Correct 278 ms 70740 KB Output is correct
50 Correct 253 ms 70748 KB Output is correct
51 Correct 506 ms 69612 KB Output is correct
52 Correct 480 ms 64060 KB Output is correct
53 Correct 433 ms 62520 KB Output is correct

Subtask #2
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 424 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 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 Incorrect 1 ms 348 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 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 1 ms 604 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 356 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 500 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 14 ms 2160 KB Output is correct
26 Correct 20 ms 9308 KB Output is correct
27 Correct 22 ms 10984 KB Output is correct
28 Correct 20 ms 3472 KB Output is correct
29 Correct 26 ms 3932 KB Output is correct
30 Correct 22 ms 4696 KB Output is correct
31 Correct 21 ms 3056 KB Output is correct
32 Correct 21 ms 4460 KB Output is correct
33 Correct 20 ms 3416 KB Output is correct
34 Correct 51 ms 16440 KB Output is correct
35 Correct 68 ms 26668 KB Output is correct
36 Correct 49 ms 8024 KB Output is correct
37 Correct 53 ms 9300 KB Output is correct
38 Correct 71 ms 11308 KB Output is correct
39 Correct 182 ms 74016 KB Output is correct
40 Correct 491 ms 121508 KB Output is correct
41 Correct 597 ms 260044 KB Output is correct
42 Correct 508 ms 84488 KB Output is correct
43 Correct 543 ms 90700 KB Output is correct
44 Correct 588 ms 109904 KB Output is correct
45 Correct 520 ms 79996 KB Output is correct
46 Correct 528 ms 78676 KB Output is correct

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 424 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 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 Incorrect 1 ms 348 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 424 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 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 Incorrect 1 ms 348 KB Output isn't correct
18 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 1 ms 604 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 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 1 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 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 16 ms 2980 KB Output is correct
20 Correct 12 ms 2396 KB Output is correct
21 Correct 22 ms 10984 KB Output is correct
22 Correct 17 ms 3164 KB Output is correct
23 Correct 15 ms 2908 KB Output is correct
24 Correct 12 ms 3164 KB Output is correct
25 Correct 10 ms 3164 KB Output is correct
26 Correct 17 ms 4184 KB Output is correct
27 Correct 17 ms 3788 KB Output is correct
28 Correct 16 ms 3164 KB Output is correct
29 Correct 38 ms 6624 KB Output is correct
30 Correct 14 ms 2984 KB Output is correct
31 Correct 53 ms 26648 KB Output is correct
32 Correct 44 ms 7000 KB Output is correct
33 Correct 37 ms 6488 KB Output is correct
34 Correct 27 ms 7260 KB Output is correct
35 Correct 27 ms 7260 KB Output is correct
36 Correct 43 ms 8760 KB Output is correct
37 Correct 42 ms 7516 KB Output is correct
38 Correct 42 ms 7032 KB Output is correct
39 Correct 476 ms 61428 KB Output is correct
40 Correct 46 ms 7260 KB Output is correct
41 Correct 32 ms 9052 KB Output is correct
42 Correct 61 ms 9232 KB Output is correct
43 Correct 54 ms 10844 KB Output is correct
44 Correct 200 ms 30520 KB Output is correct
45 Correct 205 ms 33112 KB Output is correct
46 Correct 618 ms 259192 KB Output is correct
47 Correct 455 ms 62036 KB Output is correct
48 Correct 490 ms 61324 KB Output is correct
49 Correct 278 ms 70740 KB Output is correct
50 Correct 253 ms 70748 KB Output is correct
51 Correct 506 ms 69612 KB Output is correct
52 Correct 480 ms 64060 KB Output is correct
53 Correct 433 ms 62520 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 424 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 0 ms 344 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 1 ms 344 KB Output is correct
66 Correct 1 ms 348 KB Output is correct
67 Correct 1 ms 348 KB Output is correct
68 Correct 1 ms 348 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Incorrect 1 ms 348 KB Output isn't correct
71 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 1 ms 604 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 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 1 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 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 16 ms 2980 KB Output is correct
20 Correct 12 ms 2396 KB Output is correct
21 Correct 22 ms 10984 KB Output is correct
22 Correct 17 ms 3164 KB Output is correct
23 Correct 15 ms 2908 KB Output is correct
24 Correct 12 ms 3164 KB Output is correct
25 Correct 10 ms 3164 KB Output is correct
26 Correct 17 ms 4184 KB Output is correct
27 Correct 17 ms 3788 KB Output is correct
28 Correct 16 ms 3164 KB Output is correct
29 Correct 38 ms 6624 KB Output is correct
30 Correct 14 ms 2984 KB Output is correct
31 Correct 53 ms 26648 KB Output is correct
32 Correct 44 ms 7000 KB Output is correct
33 Correct 37 ms 6488 KB Output is correct
34 Correct 27 ms 7260 KB Output is correct
35 Correct 27 ms 7260 KB Output is correct
36 Correct 43 ms 8760 KB Output is correct
37 Correct 42 ms 7516 KB Output is correct
38 Correct 42 ms 7032 KB Output is correct
39 Correct 476 ms 61428 KB Output is correct
40 Correct 46 ms 7260 KB Output is correct
41 Correct 32 ms 9052 KB Output is correct
42 Correct 61 ms 9232 KB Output is correct
43 Correct 54 ms 10844 KB Output is correct
44 Correct 200 ms 30520 KB Output is correct
45 Correct 205 ms 33112 KB Output is correct
46 Correct 618 ms 259192 KB Output is correct
47 Correct 455 ms 62036 KB Output is correct
48 Correct 490 ms 61324 KB Output is correct
49 Correct 278 ms 70740 KB Output is correct
50 Correct 253 ms 70748 KB Output is correct
51 Correct 506 ms 69612 KB Output is correct
52 Correct 480 ms 64060 KB Output is correct
53 Correct 433 ms 62520 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 424 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 0 ms 344 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 1 ms 344 KB Output is correct
66 Correct 1 ms 348 KB Output is correct
67 Correct 1 ms 348 KB Output is correct
68 Correct 1 ms 348 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Incorrect 1 ms 348 KB Output isn't correct
71 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 1 ms 604 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 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 1 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 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 16 ms 2980 KB Output is correct
20 Correct 12 ms 2396 KB Output is correct
21 Correct 22 ms 10984 KB Output is correct
22 Correct 17 ms 3164 KB Output is correct
23 Correct 15 ms 2908 KB Output is correct
24 Correct 12 ms 3164 KB Output is correct
25 Correct 10 ms 3164 KB Output is correct
26 Correct 17 ms 4184 KB Output is correct
27 Correct 17 ms 3788 KB Output is correct
28 Correct 16 ms 3164 KB Output is correct
29 Correct 38 ms 6624 KB Output is correct
30 Correct 14 ms 2984 KB Output is correct
31 Correct 53 ms 26648 KB Output is correct
32 Correct 44 ms 7000 KB Output is correct
33 Correct 37 ms 6488 KB Output is correct
34 Correct 27 ms 7260 KB Output is correct
35 Correct 27 ms 7260 KB Output is correct
36 Correct 43 ms 8760 KB Output is correct
37 Correct 42 ms 7516 KB Output is correct
38 Correct 42 ms 7032 KB Output is correct
39 Correct 476 ms 61428 KB Output is correct
40 Correct 46 ms 7260 KB Output is correct
41 Correct 32 ms 9052 KB Output is correct
42 Correct 61 ms 9232 KB Output is correct
43 Correct 54 ms 10844 KB Output is correct
44 Correct 200 ms 30520 KB Output is correct
45 Correct 205 ms 33112 KB Output is correct
46 Correct 618 ms 259192 KB Output is correct
47 Correct 455 ms 62036 KB Output is correct
48 Correct 490 ms 61324 KB Output is correct
49 Correct 278 ms 70740 KB Output is correct
50 Correct 253 ms 70748 KB Output is correct
51 Correct 506 ms 69612 KB Output is correct
52 Correct 480 ms 64060 KB Output is correct
53 Correct 433 ms 62520 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 424 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 0 ms 344 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 1 ms 344 KB Output is correct
66 Correct 1 ms 348 KB Output is correct
67 Correct 1 ms 348 KB Output is correct
68 Correct 1 ms 348 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Incorrect 1 ms 348 KB Output isn't correct
71 Halted 0 ms 0 KB -