제출 #764239

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
764239	2023-06-23 09:20:52	raysh07	송신탑 (IOI22_towers)	C++17	23 / 100	4035 ms	18388 KiB

towers

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#include "towers.h"
#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e5 + 69;
int a[maxn];
int n;
map <int, int> mp, inv;
vector <int> b;
int dp[maxn][2];
int seg[4 * maxn][2];
void upd(int l, int r, int pos, int qp, int v, int i){
    if (l == r){
        seg[pos][i] = v;
        return;
    }
    int mid = (l + r)/2;
    if (qp <= mid) upd(l, mid, pos*2, qp, v, i);
    else upd(mid + 1, r, pos*2 + 1, qp, v, i);
    
    seg[pos][i] = max(seg[pos * 2][i], seg[pos * 2 + 1][i]);
}
int query(int l, int r, int pos, int ql, int qr, int i){
    if (l >= ql && r <= qr) return seg[pos][i];
    else if (l > qr || r < ql) return 0;
    
    int mid = (l + r)/2;
    return max(query(l, mid, pos*2, ql, qr, i), query(mid + 1, r, pos*2 + 1, ql, qr, i));
 
 
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