Submission #1233930

#	Time	Username	Problem	Language	Result	Execution time	Memory
1233930		antonn	Radio Towers (IOI22_towers)	C++20	0 / 100	4062 ms	1576 KiB

towers

#include "towers.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int N = 1e5 + 7;

int n, a[N];

void init(int N, vector<int> h) {
    n = N;
    for (int i = 1; i <= n; ++i) a[i] = h[i - 1];
}

int max_towers(int l, int r, int d) {
    ++l;
    ++r;
    int pos = l;
    for (int i = l + 1; i <= r; ++i) if (a[i] < a[pos]) pos = i;
    
    int res = 1;
    int j = pos - 1, last = pos, mx = 0;
    while (j >= l) {
        if (a[j] <= mx - d && a[last] <= mx - d) {
            last = j;
            mx = 0;
            res++;
        } else {
            mx = max(mx, a[j]);
        }
        --j;
    }
    j = pos + 1;
    last = pos;
    mx = 0;
    while (j <= r) {
        if (a[j] <= mx - d && a[last] <= mx - d) {
            last = j;
            mx = 0;
            res++;
        } else {
            mx = max(mx, a[j]);
        }
        ++j;
    }
    return res;
}

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