Submission #284150

#	Time	Username	Problem	Language	Result	Execution time	Memory
284150		FlashGamezzz	Treasure (different grader from official contest) (CEOI13_treasure2)	C++17	90 / 100	1 ms	512 KiB

treasure

#include "treasure.h"
#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <fstream>
#include <algorithm>
#include <string>
#include <utility>
#include <vector>

using namespace std;

int psums[101][101] = {}, ul[101][101] = {}, dr[101][101] = {};

void findTreasure (int N) {
	for (int r = 1; r <= N; r++){
		for (int c = 1; c <= N; c++){
			bool a = (r > N/2), b = (c > N/2);
			if (a && b){
				psums[r][c] = countTreasure(1, 1, r, c);
			} else {
				if (a && c > 1){
					dr[r][c] = countTreasure(1, c, r, N);
				}
				if (b && r > 1){
					ul[r][c] = countTreasure(r, 1, N, c);
				}
			}
		}
	}
	for (int i = N; i > N/2; i--){
		ul[1][i] = psums[N][i];
		dr[i][1] = psums[i][N];
	}
	for (int r = N; r > N/2; r--){
		for (int c = 1; c < N/2; c++){
			psums[r][c] = psums[r][N]-dr[r][c+1];
		}
		psums[r][N/2] = countTreasure(1, 1, r, N/2);
	}
	for (int c = N; c > N/2; c--){
		for (int r = 1; r < N/2; r++){
			psums[r][c] = psums[N][c]-ul[r+1][c];
		}
		psums[N/2][c] = countTreasure(1, 1, N/2, c);
	}
	for (int r = N/2; r >= 1; r--){
		for (int c = N/2; c >= 1; c--){
			psums[r][c] = countTreasure(r+1, c+1, N, N)-psums[N][N]+psums[N][c]+psums[r][N];
		}
	}
	for (int r = 1; r <= N; r++){
		for (int c = 1; c <= N; c++){
			if (psums[r][c] == psums[r-1][c]+psums[r][c-1]-psums[r-1][c-1]+1){
				Report(r, c);
			}
		}
	}
}

• Subtask 1: 90 / 100