Submission #27409

#	Time	Username	Problem	Language	Result	Execution time	Memory
27409		boh7978	올림픽 피자 (tutorial5)	C++14	70 / 100	1000 ms	5024 KiB

tutorial5

#include "pizza.h"

int order_num;
int elm[9];
int customer[100111][10]; //8: N 9:able

void Init() {

	order_num = 0;
	for (int j = 0; j < 100111; j++) {
		for (int i = 0; i < 10; i++) {
			elm[i] = 0;
			if (customer[j][9] != 0) {
				customer[j][i] = 0;
			}
		}
	}
}

void Order(int N, int *A) {

	bool ready = true;
	for (int i = 0; i < N; i++) {
		if (elm[A[i]] == 0) { ready = false; break; }
	}
	if (ready) {
		Bake(order_num);
		for (int i = 0; i < N; i++) {
			elm[A[i]]--;
		}
	}
	else {
		customer[order_num][9] = 1;
		customer[order_num][8] = N;
		for (int i = 0; i < N; i++) {
			customer[order_num][i] = A[i];
		}
	}
	order_num++;

}

void Delivery(int I) {
	elm[I]++;
	for (int c = 0; c < order_num; c++) {
		bool ready = true;
		if (customer[c][9]) {
			for (int i = 0; i < customer[c][8]; i++) {
				if (elm[customer[c][i]] == 0) { ready = false; break; }
			}
			if (ready) {
				customer[c][9] = 0;
				for (int i = 0; i < customer[c][8]; i++) {
					elm[customer[c][i]]--;
				}
				Bake(c);
				break;
			}
		}
	}

}

Compilation message (stderr)

grader.cpp: In function 'int main(int, char**)':
grader.cpp:65:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
tutorial5.cpp: In function 'void Init()':
tutorial5.cpp:13:14: warning: iteration 9u invokes undefined behavior [-Waggressive-loop-optimizations]
    elm[i] = 0;
              ^
tutorial5.cpp:12:21: note: containing loop
   for (int i = 0; i < 10; i++) {
                     ^

• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 20 / 20
• Subtask 4: 0 / 30