Submission #600876

#	Time	Username	Problem	Language	Result	Execution time	Memory
600876		PiejanVDC	Comparing Plants (IOI20_plants)	C++17	5 / 100	94 ms	9476 KiB

plants

#include "plants.h"
#include <bits/stdc++.h>
using namespace std;

vector<int>l(200005),h(200005), R;
int N;

void init(int k, vector<int>r) {
    R = r;
    N = r.size();
    for(int i = 1 ; i < N ; i++) {
        if(r[i-1]) {
            h[i] = h[i-1];
            l[i] = i;
        } else {
            h[i] = i;
            l[i] = l[i-1];
        }
    }
}

int compare_plants(int x, int y) {
    if(h[y] == h[x])
        return -1;
    if(l[y] == l[x])
        return 1;
    if(h[N-1] == h[y] && h[x] == h[0] && R[N-1])
        return 1;
    if(l[N-1] == l[y] && l[x] == l[0] && !R[N-1])
        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