Submission #825116

#	Time	Username	Problem	Language	Result	Execution time	Memory
825116		alvingogo	Radio Towers (IOI22_towers)	C++17	14 / 100	645 ms	1876 KiB

towers

#include "towers.h"
#include <bits/stdc++.h>
#define fs first
#define sc second
#define p_q priority_queue
using namespace std;

vector<int> v,pre;
void init(int n, vector<int> h) {
    v=h;
    pre.resize(n);
    for(int i=1;i+1<n;i++){
        if(v[i]<v[i-1] && v[i]<v[i+1]){
            pre[i]=1;
        }
    }
    for(int i=1;i<n;i++){
        pre[i]+=pre[i-1];
    }
}

int max_towers(int l, int r, int d) {
    if(l==r){
        return 1;
    }
    int u=pre[r-1];
    if(l){
        u-=pre[l];
    }
    if(v[l]<v[l+1]){
        u++;
    }
    if(v[r]<v[r-1]){
        u++;
    }
    return u;
}

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