oj.uz

답안 #72244

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
72244 2018-08-26T06:19:00 Z Semteo For Ajou(#2257, tph00300, txepahs, bmw) 수중 미로 (FXCUP3_aqua) C++14
100 / 100
 815 ms 22888 KB 
#include <stdio.h>
#include <algorithm>
using namespace std;
int map[901][901];
int x[5] = { 0,-1,0,1,0 }, y[5] = { 0,0,1,0,-1 };
int tx, ty, f, s, px[10000001], py[10000001];
char arr[10001];
int main()
{
	int n,i,j,k,ex,ey;

	scanf("%d", &n);

	f = 1;
	s = 1;
	for (i = 1; i <= n; i++)
	{
		scanf("%s", arr);
		for (j = 0; j < n; j++)
		{
			if (arr[j] == 'M')
			{
				map[i][j + 1] = 0;
				px[f] = i;
				py[f] = j + 1;
			}
			else if (arr[j] == 'W')
				map[i][j + 1] = -1;
			else if (arr[j] == '.')
				map[i][j + 1] = 0;
			else if (arr[j] == 'H')
			{
				map[i][j + 1] = 0;
				ex = i;
				ey = j+1;
			}
		}
	}

	map[px[f]][py[f]] = 1;
	int flag,a=0;
	while (f <= s)
	{
		for (i = 1; i <= 4; i++)
		{
			flag = 0;
			a = 0;
			tx = px[f];
			ty = py[f];
			while (1)
			{
				tx += x[i];
				ty += y[i];
				if (tx<0 || ty<0 || tx>n || ty>n)
					break;
				if (map[tx][ty] == -1 && flag!=2)
				{
					flag = 1;
					a++;
				}
				if (map[tx][ty] != -1 && flag == 1)
				{
					flag = 2;
				}
				if (flag == 2)
				{
					if (map[tx][ty] == 0 || map[tx][ty] > a*a + map[px[f]][py[f]])
					{
						map[tx][ty] = a * a + map[px[f]][py[f]];
						s++;
						px[s] = tx;
						py[s] = ty;
					}
				}
				if (flag == 2 && map[tx][ty] == -1)
					break;
			}
		}
		f++;
	}
	/*for (i = 1; i <= n; i++)
	{
		for (j = 1; j <= n; j++)
		{
			printf("%d ", map[i][j]);
		}
		printf("\n");
	}*/
	if (map[ex][ey] == 0)
		printf("%d", -1);
	else
		printf("%d", map[ex][ey]-1);
	return 0;
}

Compilation message

aqua.cpp: In function 'int main()':
aqua.cpp:10:12: warning: unused variable 'k' [-Wunused-variable]
  int n,i,j,k,ex,ey;
            ^
aqua.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
aqua.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s", arr);
   ~~~~~^~~~~~~~~~~
aqua.cpp:89:16: warning: 'ey' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (map[ex][ey] == 0)
      ~~~~~~~~~~^
aqua.cpp:89:16: warning: 'ex' may be used uninitialized in this function [-Wmaybe-uninitialized]

Subtask #1
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 340 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 2 ms 488 KB Output is correct
4 Correct 2 ms 720 KB Output is correct
5 Correct 3 ms 744 KB Output is correct
6 Correct 4 ms 744 KB Output is correct
7 Correct 7 ms 964 KB Output is correct
8 Correct 7 ms 964 KB Output is correct
9 Correct 3 ms 964 KB Output is correct
10 Correct 3 ms 964 KB Output is correct

Subtask #2
64.0 / 64.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 340 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 2 ms 488 KB Output is correct
4 Correct 2 ms 720 KB Output is correct
5 Correct 3 ms 744 KB Output is correct
6 Correct 4 ms 744 KB Output is correct
7 Correct 7 ms 964 KB Output is correct
8 Correct 7 ms 964 KB Output is correct
9 Correct 3 ms 964 KB Output is correct
10 Correct 3 ms 964 KB Output is correct
11 Correct 69 ms 3384 KB Output is correct
12 Correct 18 ms 3384 KB Output is correct
13 Correct 402 ms 13880 KB Output is correct
14 Correct 50 ms 13880 KB Output is correct
15 Correct 10 ms 13880 KB Output is correct
16 Correct 815 ms 22888 KB Output is correct
17 Correct 705 ms 22888 KB Output is correct
18 Correct 34 ms 22888 KB Output is correct
19 Correct 65 ms 22888 KB Output is correct
20 Correct 34 ms 22888 KB Output is correct