Submission #451957

#	Time	Username	Problem	Language	Result	Execution time	Memory
451957		rainboy	Comparing Plants (IOI20_plants)	C++17	5 / 100	107 ms	8008 KiB

plants

#include "plants.h"

using namespace std;

typedef vector<int> vi;

const int N = 200000;

int pp[N], n, k;

void init(int k_, vi rr) {
	int i;

	n = rr.size(), k = k_;
	for (i = 0; i < n; i++)
		pp[i] = rr[i];
	for (i = 1; i < n; i++)
		pp[i] += pp[i - 1];
}

int compare_plants(int x, int y) {
	int k = pp[y - 1] - (x == 0 ? 0 : pp[x - 1]);

	if (k == y - x)
		return -1;
	else if (k == 0)
		return 1;
	k = pp[n - 1] - k;
	if (k == n - (y - x))
		return 1;
	else if (k == 0)
		return -1;
	return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 11
• Subtask 6: 0 / 15
• Subtask 7: 0 / 25