Submission #40819

#	Time	Username	Problem	Language	Result	Execution time	Memory
40819		esspks21	Treasure (different grader from official contest) (CEOI13_treasure2)	C++14	100 / 100	2 ms	784 KiB

treasure

#include "treasure.h"
#include <vector>
using namespace std;
struct pos { int r, c; };
vector<pos> vt;
int psum[101][101];
// 1 2
// 3 4
void findTreasure(int N) {
	pos temp;

	// 4사분면
	for (int i = N; i > N / 2; i--)
		for (int j = N; j > N / 2; j--)
			psum[i][j] = countTreasure(1, 1, i, j);

	// 2사분면
	for (int i = 1; i <= N / 2; i++)
		for (int j = N / 2 + 1; j <= N; j++)
			psum[i][j] = psum[N][j] - countTreasure(i+1, 1, N, j);
	// 3사분면
	for (int i = N / 2 + 1; i <= N; i++)
		for (int j = 1; j <= N / 2; j++)
			psum[i][j] = psum[i][N] - countTreasure(1, j+1, i, N);

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

	//for (int i = 1; i <= N; i++) {
	//	for (int j = 1; j <= N; j++) {
	//		cout << psum[i][j] << " ";
	//	}
	//	cout << endl;
	//}

	for (int i = 1; i <= N; i++) {
		for (int j = 1; j <= N; j++) {
			int tmp;
			if (i == 1 && j == 1) tmp = psum[i][j];
			else if (i == 1 && j != 1) tmp = psum[i][j] - psum[i][j - 1];
			else if (i != 1 && j == 1) tmp = psum[i][j] - psum[i - 1][j];
			else tmp = psum[i][j] - psum[i - 1][j] - psum[i][j - 1] + psum[i - 1][j - 1];
			if (tmp == 1) {
				temp.r = i; temp.c = j;
				vt.push_back(temp);
			}
		}
	}

	for (int i = 0; i < vt.size(); i++)
		Report(vt[i].r, vt[i].c);
	return;
}

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:52:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < vt.size(); i++)
                    ^

• Subtask 1: 100 / 100