Submission #1320043

#	Time	Username	Problem	Language	Result	Execution time	Memory
1320043		BigBadBully	Radio Towers (IOI22_towers)	C++20	0 / 100	274 ms	1812 KiB

towers

#include "towers.h"

#include <bits/stdc++.h>
using namespace std;
int n;
vector<int> v,pref;

bool check(int i)
{
    return (i==0 || v[i] < v[i-1])&(i==n-1 || v[i] < v[i+1]);
}


void init(int N, std::vector<int> H) {
    v = H;
    n = N;
    pref.resize(n);
    for(int i = 0; i < n; i++)
        pref[i] = (i>0?pref[i-1]:0)+check(i);
}

int max_towers(int l, int r, int d) {
    
    return pref[r]-(l>0?pref[l-1]:0) - check(l)+(l==0 || 
        v[l] < v[l+1]) - check(r)+(r==n-1||v[r]<v[r-1]);
}

• 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