제출 #1082241

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1082241		jer033	Radio Towers (IOI22_towers)	C++17	0 / 100	489 ms	1880 KiB

towers

#include "towers.h"
#include <vector>
#include <bits/stdc++.h>
using namespace std;
const int INF = 2'000'000'000;
 
vector<int> H;
int N;
vector<int> comm;
 
void init(int n, std::vector<int> h) {
    H = h;
    N = n;
    comm = vector<int> (N-1, 0);
    for (int i=1; i<(N-1); i++)
    {
        comm[i] = comm[i-1];
        if ((H[i]<H[i-1]) and (H[i]<H[i+1]))
            comm[i]++;
    }
}
 
int max_towers(int L, int R, int D) {
    if ((R-L)<=1)
        return 1;
    int ans = comm[R-1]-comm[L+1];
  	if (H[L] < H[L+1])
      	ans++;
  	if (H[R] < H[R-1])
      	ans++;
  	return ans;
}

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