Submission #1245212

#	Time	Username	Problem	Language	Result	Execution time	Memory
1245212		qwusha	Comparing Plants (IOI20_plants)	C++20	5 / 100	44 ms	4936 KiB

plants

#include "plants.h"

#include <iostream>
#include <bits/stdc++.h>

#define fi first
#define se second

using namespace std;

int inf = 1e9 + 7;

vector<int> pref;
int n;

void init(int k, vector<int> r) {
    n = r.size();
    pref.assign(n + 1, 0);
    for (int i = 0; i < n; i++) {
        pref[i + 1] = pref[i] + r[i];
    }
}

int compare_plants(int x, int y) {
    int val = pref[y] - pref[x];
    int val2 = pref[n] - pref[y] + pref[x];
    if (val == y - x) {
        return -1;
    } else if (val == 0) {
        return 1;
    } else if (val2 == n - y + x) {
        return 1;
    } else if (val2 == 0) {
        return -1;
    } else {
        return 0;
    }
}

/*
signed main() {
    int m ;
    cin >> m;
    vector<int> a(m);
    for (int i = 0; i < m; i++) {
        cin >> a[i];
    }
    init(2, a);
    int q;
    cin >> q;
    for (int i =  0; i < q; i++) {
        int l, r;
        cin >> l >> r;
        cout << compare_plants(l, r) << '\n';
    }
}
*/

• 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