Submission #1626180

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Source Code Expand

#include <cstdio>
#include <cmath>
#include <iostream>
#include <algorithm>
#include <vector>

#define INF 1e5;

using namespace std;

int main()
{
	int R, C, sy, sx, gy, gx, d[50][50] = {}, i, j, n, y, x, k;
	char c[51][51] = {};
	vector<int> que, quek;

	for (i = 0; i < 50; i++) {
		for (j = 0; j < 50; j++) {
			d[i][j] = INF;
		}
	}

	scanf("%d %d %d %d %d %d", &R, &C, &sy, &sx, &gy, &gx);

	d[sy - 1][sx - 1] = 0;
	que.push_back((sy - 1) * C + (sx - 1));
	quek.push_back(0);

	for (i = 0; i < R; i++) {
		scanf("%s", &c[i][0]);
	}

	while (!que.empty()) {
		n = que[0];
		que.erase(que.begin());
		k = quek[0];
		quek.erase(quek.begin());
		y = n / C;
		x = n % C;

		d[y][x] = k;

		if (y == gy - 1 && x == gx - 1) {
			printf("%d\n", d[y][x]);
			return 0;
		}
		
		if (c[y - 1][x] == '.' && d[y - 1][x] > k + 1) {
			que.push_back((y - 1) * C + x);
			quek.push_back(k + 1);
		}
		if (c[y][x - 1] == '.' && d[y][x - 1] > k + 1) {
			que.push_back(y * C + (x - 1));
			quek.push_back(k + 1);
		}
		if (c[y + 1][x] == '.' && d[y + 1][x] > k + 1) {
			que.push_back((y + 1) * C + x);
			quek.push_back(k + 1);
		}
		if (c[y][x + 1] == '.' && d[y][x + 1] > k + 1) {
			que.push_back(y * C + (x + 1));
			quek.push_back(k + 1);
		}
	}

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:23:56: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d %d %d %d", &R, &C, &sy, &sx, &gy, &gx);
                                                        ^
./Main.cpp:30:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s", &c[i][0]);
                        ^

Judge Result