Submission #394290

#	Time	Username	Problem	Language	Result	Execution time	Memory
394290		snasibov05	Comparing Plants (IOI20_plants)	C++14	5 / 100	101 ms	7984 KiB

plants

#include "plants.h"

using namespace std;

vector<int> sum;
int sm = 0;
int n;

void init(int k, vector<int> r) {

    n = r.size();

    sum.resize(n);
    sum[0] = r[0];
    sm += r[0];
    for (int i = 1; i < n; ++i) {
        sum[i] = sum[i-1] + r[i];
        sm += r[i];
    }

}

int compare_plants(int x, int y) {

    if (x > y) swap(x, y);

    int k = sum[y-1];
    if (x != 0) k -= sum[x-1];

    if (k == y - x) return -1;
    if (k == 0) return 1;

    k = sm - k;
    if (k == (n - y) + x) return 1;
    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