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답안 #750440

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
750440 2023-05-29T14:05:53 Z Muaath_5 Awesome Arrowland Adventure (eJOI19_adventure) C++17
100 / 100
 79 ms 4960 KB 
#include <bits/stdc++.h>
#define pii pair<int, int>
#define ll long long
#define umin(x, y) x = min(x, y)
#define sq(x) ((x)*(x))
using namespace std;

const int N = 505;
const ll INF = 2e9 + 7;

int n, m;
char g[N][N];

int clc(char f, char t) {
	if (f == t) return 0;
	if (f == 'W') {
		if (t == 'N') return 1;
		if (t == 'E') return 2;
		if (t == 'S') return 3;
	}
	if (f == 'S') {
		if (t == 'W') return 1;
		if (t == 'N') return 2;
		if (t == 'E') return 3;
	}
	if (f == 'E') {
		if (t == 'S') return 1;
		if (t == 'W') return 2;
		if (t == 'N') return 3;
	}
	if (t == 'E') return 1;
	if (t == 'S') return 2;
	if (t == 'W') return 3;
}

bool vis[N][N];
int dist[N][N];

int main()
{
	ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin >> n >> m;
	for (int i = 0; i <= n+1; i++) {
		g[i][0] = 'X';
		g[i][m+1] = 'X';
		vis[i][0] = vis[i][m + 1] = 1;
	}
	for (int i = 0; i <= m + 1; i++) {
		g[0][i] = 'X';
		g[n+1][i] = 'X';
		vis[0][i] = vis[n+1][i] = 1;
	}
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= m; j++) {
			cin >> g[i][j];
			dist[i][j] = INF;
		}
	}
	priority_queue<pair<int, pii>, vector<pair<int, pii>>, greater<pair<int, pii>>> pq;
	dist[1][1] = 0;
	pq.push({ 0, {1, 1} });
	while (pq.size())
	{
		auto [cost, pnt] = pq.top();
		auto [x, y] = pnt;
 
		pq.pop();
		if (g[x][y] == 'X') continue;
		vis[x][y] = 1;

		if (!vis[x-1][y] && dist[x - 1][y] > cost + clc(g[x][y], 'N')) {
			dist[x - 1][y] = cost + clc(g[x][y], 'N');
			pq.push({ dist[x - 1][y], {x-1, y} });
		}

		if (!vis[x+1][y] && dist[x + 1][y] > cost + clc(g[x][y], 'S')) {
			dist[x + 1][y] = cost + clc(g[x][y], 'S');
			pq.push({ dist[x + 1][y], {x+1, y} });
		}

		if (!vis[x][y+1] && dist[x][y + 1] > cost + clc(g[x][y], 'E')) {
			dist[x][y + 1] = cost + clc(g[x][y], 'E');
			pq.push({ dist[x][y + 1], {x, y+1} });
		}

		if (!vis[x][y-1] && dist[x][y - 1] > cost + clc(g[x][y], 'W')) {
			dist[x][y - 1] = cost + clc(g[x][y], 'W');
			pq.push({ dist[x][y - 1], {x, y-1} });
		}

	}
	
	cout << (dist[n][m] == INF ? -1 : dist[n][m]);
}

Compilation message

adventure.cpp: In function 'int clc(char, char)':
adventure.cpp:34:1: warning: control reaches end of non-void function [-Wreturn-type]
   34 | }
      | ^

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct

Subtask #4
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #5
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 4 ms 468 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 5 ms 596 KB Output is correct
38 Correct 1 ms 1108 KB Output is correct
39 Correct 50 ms 1832 KB Output is correct
40 Correct 56 ms 1892 KB Output is correct
41 Correct 6 ms 1748 KB Output is correct
42 Correct 56 ms 1840 KB Output is correct
43 Correct 79 ms 4960 KB Output is correct
44 Correct 4 ms 1832 KB Output is correct