Submission #18576

#	Time	Username	Problem	Language	Result	Execution time	Memory
18576		jjhstop	올림픽 피자 (tutorial5)	C++98	100 / 100	88 ms	1864 KiB

tutorial5

#include "pizza.h"
#include <queue>

using namespace std;

queue<int> Q[256];
int order_num;
int ingred[9];
int delivered;

void Init() {
  order_num = 0;

}

void process(void)
{
	while (1) {
		int chk = -1;
		for (int i = delivered; i > 0; i = (i - 1) & delivered) {
			if (!Q[i].empty() && (chk < 0 || Q[chk].front() > Q[i].front())) chk = i;
		}
		if (chk < 0) return;
		Bake(Q[chk].front()); 
		Q[chk].pop();
		for (int i = 0; i < 8; i++) {
			if (chk & (1 << i)) {
				ingred[i]--;
				if (ingred[i] == 0) delivered ^= (1 << i);
			}
		}
	}
}

void Order(int N, int *A) {
	int ordering = 0;
	for (int i = 0; i < N; i++) {
		ordering |= (1 << A[i]);
	}
	Q[ordering].push(order_num);
	order_num++;
	process();
}

void Delivery(int i) {
	ingred[i]++;
	if (ingred[i] == 1) {
		delivered |= (1 << i);
	}
	process();
}

• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 20 / 20
• Subtask 4: 30 / 30