Submission #99375

#	Time	Username	Problem	Language	Result	Execution time	Memory
99375		kimcoding	Kocka (COCI18_kocka)	C++17	70 / 70	102 ms	6004 KiB

kocka

#include <cstdio>
#include <cstring>
#define min(a,b) (a<b?a:b)

int *cube[4], *now[4], n;

int f(int i, int j, int val) {
	if (cube[i][j] > val || cube[i][j] == -1) return -2;
	return now[i][j] == -1  ? val : min(now[i][j], val);
}

bool solve() {
	for (int i = 0; i < 4; i++) {
		for (int j = 0; j < n; j++) {
			if (cube[i][j] == -1 || cube[i][j] == now[i][j]) continue;
			now[i][j] = cube[i][j];
			now[i ^ 1][j] = f(i ^ 1, j, n - cube[i][j] - 1);
			int r = (i / 2 * 2 + 2) % 4, c = i & 1 ? n - cube[i][j] - 1 : cube[i][j];
			now[r][c] = f(r, c, j);
			now[r + 1][c] = f(r + 1, c, n - j - 1);
			if (now[i ^ 1][j] == -2 || now[r][c] == -2 || now[r + 1][c] == -2) 
				return false;
		}
	}
	return true;
}

int main() {
	scanf("%d", &n);
	for (int i = 0; i < 4; i++) {
		cube[i] = new int[n];
		now[i] = new int[n];
		memset(now[i], -1, sizeof(int) * n);
	}
	for (int i = 0; i < 4; i++) 
		for (int j = 0; j < n; j++) scanf("%d", &cube[i][j]);
	printf("%s\n", solve() ? "DA" : "NE");
	return 0;
}

Compilation message (stderr)

kocka.cpp: In function 'int main()':
kocka.cpp:29:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
kocka.cpp:36:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   for (int j = 0; j < n; j++) scanf("%d", &cube[i][j]);
                               ~~~~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 14 / 14
• Subtask 4: 14 / 14
• Subtask 5: 14 / 14