Submission #41092

#	Time	Username	Problem	Language	Result	Execution time	Memory
41092		tkqlzz	Treasure (different grader from official contest) (CEOI13_treasure2)	C++14	100 / 100	2 ms	600 KiB

treasure

#include "treasure.h"
#define MAX(A, B) ((A) > (B) ? (A) : (B))

int sum[101][101];

void findTreasure (int N) {
	int i, j;
	i = j = N / 2;

	for (int i =  N/2 + 1; i <= N; i++)
		for (int j = N/2 + 1; j <= N; j++)
			sum[i][j] = countTreasure(1, 1, i, j);

	for (int i = N / 2 + 1; i <= N; i++)
		for (int j = 1; j <= N / 2; j++)
			sum[i][j] = sum[i][N] - countTreasure(1, j + 1, i, N);

	for (int i = 1; i <= N / 2; i++)
		for (int j = N / 2 + 1; j <= N; j++)
			sum[i][j] = sum[N][j] - countTreasure(i + 1, 1, N, j);

	for (int i = 1; i <= N / 2; i++)
		for (int j = 1; j <= N / 2; j++)
			sum[i][j] = sum[i][N] + sum[N][j] + countTreasure(i+1, j+1, N, N) - sum[N][N];


	if (sum[1][1] == 1)
		Report(1, 1);

	for (int i = 2; i <= N; i++) {
		if (sum[i][1] - sum[i - 1][1] == 1)
			Report(i, 1);
		if (sum[1][i] - sum[1][i - 1] == 1)
			Report(1, i);
	}

	for (int i = 2; i <= N; i++)
		for (int j = 2; j <= N; j++)
			if (sum[i][j] - sum[i - 1][j] - sum[i][j - 1] + sum[i-1][j-1] == 1)
				Report(i, j);


}

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:63:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         my_assert(strlen(A[i]+1) == N, "each line of the map must contain N zeroes or ones (before loop)");
                                  ^
treasure.cpp: In function 'void findTreasure(int)':
treasure.cpp:7:6: warning: variable 'i' set but not used [-Wunused-but-set-variable]
  int i, j;
      ^

• Subtask 1: 100 / 100