제출 #667129

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
667129	2022-11-30 12:20:42	tatyam	송신탑 (IOI22_towers)	C++17	56 / 100	1102 ms	56708 KiB

towers

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#include <bits/stdc++.h>
using namespace std;
const int lg = 16;
int N;
vector<int> H;
struct SparseTable{
    static pair<int, int> op(pair<int, int> a, pair<int, int> b){
        return {std::min(a.first, b.first), std::max(a.second, b.second)};
    }
    vector<vector<pair<int, int>>> table;
    SparseTable(){}
    SparseTable(int N, vector<int> H): table(lg + 1, vector<pair<int, int>>(N)){
        for(int i = 0; i < N; i++) table[0][i] = {H[i], H[i]};
        for(int l = 1; l <= lg; l++) for(int i = 0; i + (1 << l) <= N; i++){
            table[l][i] = op(table[l - 1][i], table[l - 1][i + (1 << l - 1)]);
        }
    }
    pair<int, int> get(int L, int R) const {
        const int l = __lg(R - L);
        return op(table[l][L], table[l][R - (1 << l)]);
    }
} st;
vector<vector<array<array<int, 3>, 2>>> table;
bool first = 1;
void init(int N, vector<int> H) {
    ::N = N;
    ::H = H;
    st = SparseTable(N, H);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

towers.cpp: In constructor 'SparseTable::SparseTable(int, std::vector<int>)':
towers.cpp:17:72: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   17 |             table[l][i] = op(table[l - 1][i], table[l - 1][i + (1 << l - 1)]);
      |                                                                      ~~^~~

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