제출 #40601

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
40601		pica4500	보물 찾기 (CEOI13_treasure2)	C++98	40 / 100	2 ms	624 KiB

treasure

#include "treasure.h"
#include<iostream>
using namespace std;

int ptr = 0;
bool treasure[105][105];

int tot = 0;
int cur = 0;

bool chk(int r1, int c1, int r2, int c2) {
	if (r2 < r1 || c2 < c1) return false;
	return true;
}

int sum(int r1, int c1, int r2, int c2) {
	return ((r2 - r1 + 1) * (c2 - c1 + 1));
}

void solve(int r1, int c1, int r2, int c2) {
	if ((cur == tot) || !chk(r1, c1, r2, c2)) return;

	int midR = (r1 + r2) / 2;
	int midC = (c1 + c2) / 2;

	int LUr1 = r1;
	int LUc1 = c1;
	int LUr2 = midR;
	int LUc2 = midC;

	int LDr1 = midR + 1;
	int LDc1 = c1;
	int LDr2 = r2;
	int LDc2 = midC;

	int RUr1 = r1;
	int RUc1 = midC + 1;
	int RUr2 = midR;
	int RUc2 = c2;

	int RDr1 = midR + 1;
	int RDc1 = midC + 1;
	int RDr2 = r2;
	int RDc2 = c2;

	int LU = 0;
	int LD = 0;
	int RU = 0;
	int RD = 0;

	int LUD = 0;
	int RUD = 0;

	int all = countTreasure(r1, c1, r2, c2);
	int curSum = 0;

	if (all == sum(r1, c1, r2, c2)) {
		for (int i = r1; i <= r2; i++) {
			for (int j = c1; j <= c2; j++) {
				treasure[i][j] = true;
			}
		}
		cur += all;
		curSum += all;
		return;
	}

	//2개 계산
	if (chk(r1, c1, r2, midC)) {
		if (cur == tot || curSum == all) return;
		LUD = countTreasure(r1, c1, r2, midC);
		if (LUD == sum(r1, c1, r2, midC)) {
			for (int i = r1; i <= r2; i++) {
				for (int j = c1; j <= midC; j++) {
					treasure[i][j] = true;
				}
			}
			cur += LUD;
			curSum += LUD;
			goto MID;
		}
		if (LUD == 0) goto MID;
	}

	if (chk(LUr1, LUc1, LUr2, LUc2)) {
		if (cur == tot || curSum == all) return;
		LU = countTreasure(LUr1, LUc1, LUr2, LUc2);
		if (LU == sum(LUr1, LUc1, LUr2, LUc2)) {
			for (int i = LUr1; i <= LUr2; i++) {
				for (int j = LUc1; j <= LUc2; j++) {
					treasure[i][j] = true;
				}
			}
			cur += LU;
			curSum += LU;
		}
		else {
			if (LU) {
				solve(LUr1, LUc1, LUr2, LUc2);
				curSum += LU;
			}
		}
	}
	if (chk(LDr1, LDc1, LDr2, LDc2)) {
		if (cur == tot || curSum == all) return;
		LD = LUD - LU;
		if (LD == sum(LDr1, LDc1, LDr2, LDc2)) {
			for (int i = LDr1; i <= LDr2; i++) {
				for (int j = LDc1; j <= LDc2; j++) {
					treasure[i][j] = true;
				}
			}
			cur += LD;
			curSum += LD;
		}
		else {
			if (LD) {
				solve(LDr1, LDc1, LDr2, LDc2);
				curSum += LD;
			}
		}
	}
MID:
	if (chk(r1, midC + 1, r2, c2)) {
		if (cur == tot || curSum == all) return;
		RUD = all - LUD;
		if (RUD == sum(r1, midC + 1, r2, c2)) {
			for (int i = r1; i <= r2; i++) {
				for (int j = midC + 1; j <= c2; j++) {
					treasure[i][j] = true;
				}
			}
			cur += RUD;
			curSum += RUD;
			return;
		}
		if (RUD == 0) return;
	}

	if (chk(RUr1, RUc1, RUr2, RUc2)) {
		if (cur == tot || curSum == all) return;
		RU = countTreasure(RUr1, RUc1, RUr2, RUc2);
		if (RU == sum(RUr1, RUc1, RUr2, RUc2)) {
			for (int i = RUr1; i <= RUr2; i++) {
				for (int j = RUc1; j <= RUc2; j++) {
					treasure[i][j] = true;
				}
			}
			cur += RU;
			curSum += RU;
		}
		else {
			if (RU) {
				solve(RUr1, RUc1, RUr2, RUc2);
				curSum += RU;
			}
		}
	}
	if (chk(RDr1, RDc1, RDr2, RDc2)) {
		if (cur == tot || curSum == all) return;
		RD = RUD - RU;
		if (RD == sum(RDr1, RDc1, RDr2, RDc2)) {
			for (int i = RDr1; i <= RDr2; i++) {
				for (int j = RDc1; j <= RDc2; j++) {
					treasure[i][j] = true;
				}
			}
			cur += RD;
			curSum += RD;
		}
		else {
			if (RD) {
				solve(RDr1, RDc1, RDr2, RDc2);
				curSum += RD;
			}
		}
	}
}

void findTreasure(int N) {
	tot = countTreasure(1, 1, N, N);
	if (tot == 0) return;

	solve(1, 1, N, N);
	for (int i = 1; i <= N; i++) {
		for (int j = 1; j <= N; j++) {
			if (treasure[i][j]) {
				Report(i, j);
			}
		}
	}
}

컴파일 시 표준 에러 (stderr) 메시지

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)");
                                  ^

• Subtask 1: 40 / 100