Submission #465167

#	Time	Username	Problem	Language	Result	Execution time	Memory
465167		zxcvbnm	Treasure (different grader from official contest) (CEOI13_treasure2)	C++14	100 / 100	3 ms	332 KiB

treasure

#include "treasure.h"
#include <bits/stdc++.h>
using namespace std;
int pref[105][105];
void findTreasure (int N) {
    int n = N;
    int mid = n/2;
    for(int i = n; i >= 1; i--) {
        for(int j = n; j >= 1; j--) {
            if (i > mid && j > mid) {
                pref[i][j] = countTreasure(1, 1, i, j);
            } else if (i > mid) {
                pref[i][j] = pref[i][n] - countTreasure(1, j+1, i, n);
            } else if (j > mid) {
                pref[i][j] = pref[n][j] - countTreasure(i+1, 1, n, j);
            } else {
                pref[i][j] = pref[n][j] + pref[i][n] + countTreasure(i+1, j+1, n, n) - pref[n][n];
            }
        }
    }

    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= n; j++) {
            if (pref[i][j] - pref[i-1][j] - pref[i][j-1] + pref[i-1][j-1]) {
                Report(i, j);
            }
        }
    }
}

• Subtask 1: 100 / 100