제출 #829459

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
829459		tolbi	송신탑 (IOI22_towers)	C++17	0 / 100	4030 ms	1360 KiB

towers

#include "towers.h"
#include <bits/stdc++.h>
using namespace std;
#include <vector>
vector<int> arr;
int n;
int st;
void init(int N, std::vector<int> H) {
    arr=H;
    n=N;
    for (int i = 0; i < N; i++){
        if (H[i]<H[st]) st=i;
    }
}

int max_towers(int L, int R, int D) {
    int mava = -23;
    int ans = 1;
    int nmiva = arr[st];
    for (int i = st+1; i < n; i++){
        if (mava>=nmiva+D && mava>=arr[i]+D){
            mava=-23;
            ans++;
            nmiva=max(nmiva,arr[i]);
        }
        mava=max(mava,arr[i]);
    }
    mava=-23;
    for (int i = st-1; i >= 0; i--){
        if (mava>=nmiva+D && mava>=arr[i]+D){
            mava=-23;
            ans++;
            nmiva=max(nmiva,arr[i]);
        }
        mava=max(mava,arr[i]);
    }
    return ans;
}

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