Submission #130108

#	Time	Username	Problem	Language	Result	Execution time	Memory
130108		colorxxx	Treasure (different grader from official contest) (CEOI13_treasure2)	C++14	100 / 100	2 ms	380 KiB

treasure

#include "treasure.h"

int map[105][105];

void check(int r, int c, int N)
{
    int m = N / 2;
    if (r > m && c > m) map[r][c] = countTreasure(1, 1, r, c);
    if (r > m && c <= m)map[r][c] = map[r][N] - countTreasure(1, c + 1, r, N);
    if (r <= m && c > m) map[r][c] = map[N][c] - countTreasure(r + 1, 1, N, c);
    if (r <= m && c <= m) map[r][c] = map[r][N] + map[N][c] + countTreasure(r + 1, c + 1, N, N) - map[N][N];
}

void findTreasure(int N) {

    for (int i = N; i ; i--) {
        for (int j = N; j ; j--) {
            check(i, j, N);
        }
    }
    for (int i = N; i ; i--) {
        for (int j = N; j ; j--) {
            if (map[i][j] - map[i - 1][j] - map[i][j - 1] + map[i - 1][j - 1])Report(i, j);
        }
    }
}

• Subtask 1: 100 / 100