Submission #627178

#	Time	Username	Problem	Language	Result	Execution time	Memory
627178		typ_ik	Radio Towers (IOI22_towers)	C++17	27 / 100	4070 ms	1484 KiB

towers

#include <bits/stdc++.h>

using namespace std;

int n;
vector <int> h;

void init(int N, vector<int> H) {
    n = N;
    h = H;
}

int max_towers(int L, int R, int D) {
    bool has = true;
    int lst = 2e9;
    int ans = 0;

    for (int i = L; i <= R; i++) {
        if (has) {
            if (lst < h[i]) lst = max(lst, h[i]);
                else if (h[i] <= lst - D) {
                    has = false;
                    lst = h[i];
                    ans++;
                }
        } else {
            if (lst > h[i]) lst = min(lst, h[i]);
                else if (h[i] - D >= lst) {
                    has = true;
                    lst = h[i];
                }
        }
    }

    return ans;
}

//main() {
//    vector <int> cur = {10, 20, 60, 40, 50, 30, 70};
//    init((int) cur.size(), cur);
//    cout << max_towers(1, 5, 10) << '\n';
//    cout << max_towers(2, 2, 10) << '\n';
//    cout << max_towers(0, 6, 17) << '\n';
//}

• Subtask 1: 4 / 4
• Subtask 2: 11 / 11
• Subtask 3: 12 / 12
• Subtask 4: 0 / 14
• Subtask 5: 0 / 17
• Subtask 6: 0 / 19
• Subtask 7: 0 / 23