Submission #635069

#	Time	Username	Problem	Language	Result	Execution time	Memory
635069		phathnv	Radio Towers (IOI22_towers)	C++17	23 / 100	4070 ms	1480 KiB

towers

#include "towers.h"

#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) {
    int res = 1, last = h[l];
    for (int i = l + 1; i <= r; ++i) {
        if (res & 1) {
            if (h[i] >= last + d) {
                ++res;
                last = h[i];
            } else {
                last = min(last, h[i]);
            }
        } else {
            if (h[i] + d <= last) {
                ++res;
                last = h[i];
            } else {
                last = max(last, h[i]);
            }
        }
    }
    return (res + 1) / 2;
}

• Subtask 1: 0 / 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