제출 #1158429

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1158429		Wendidiask	popa (BOI18_popa)	C++20	100 / 100	25 ms	464 KiB

popa

/*
                                     :---:--:--::::::--:-:----:                                     
                               ::-:::.                         ::-:::                               
                       .*  -===..                                    :---                           
                     .-+*##=-------====-:                                :--:                       
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               .+++-.  :-   -=.            .=+-                                .--.                 
             .++=-     +      -=              :*-                                 :-.               
            +*+-      :-        -=.             -*:                                 :=:             
           #*:        *           -=.             +-                                  .=            
        =:%+         -:             -=.            +-                                   --          
        -%:          *                -=.           *:                                    +.        
       :%-..        =.                  -=.          #                                     -:       
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    -: ==       .  =         :------::------:.-=.     %                                       .=    
   :-  ==        .=.     ---:.               :--#+.  .%                                        :-   
   =   .*        .+.. :=-                        :++ -+                                         =:  
  +     #.       +  -=:                            :*%-*:                                        *  
 :=     :#      :=:=   .                    :-----: =+-+                                         .+ 
 *       -*     *=-     . .-        :::::::.       :*  .#+.                                       + 
:-        -+   :#.        --::-----:              :*     ++=                                      .-
+          :*. *.    .:::::*%:                   ++       +.-=.                                    +
+           -#**----:       .=                 -*.         +  -=                                   =
*           +.#=+:           +  .           .=+:           =.   -=.                                =
=            -+  :++:         +   ..     .=+=              .=     -=.                              -
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:-         =  .=                =:                         =                -=.                   .-
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  *      *       :=               *                    :=                         -=             *  
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               :--                                                                :-:               
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                          .-:-:                                      ::--.                          
                               :----.                          .:----                               
                                    .:::::::::-::::::--::::::::.                             
 */
 // Hello this is Tyx2019's clone
#include "popa.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define debug(x) cerr << #x << " is " << x << "\n"
#define hehe ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define rep(i, a, b) for (int i = a; i <= b; i++)
#define repb(i, a, b) for (int i = b; i >= a; i--)
#define pii pair<int, int>
#define linebreak cout << "---------------------------------------------------------\n"
#define f first
#define s second
#define pb push_back
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// good luck
const ll MS = 1005, mod = 1e9+9, INF = 3e18, blk = 400;
int nextt[MS], L[MS], R[MS];
int build(int l, int r) {
	if (l > r) return -1;
	int m = l;
	while (nextt[m] <= r) m = nextt[m];
	L[m] = build(l, m-1); R[m] = build(m+1, r);
	return m;
}
int solve(int n, int *left, int *right) {
	stack<int> st;
	// next[i] = first index j such that a[j] divides a[i], ..., a[j].
	// i.e. first index j such that gcd(a[i, ... ,j]) = a[j]
	for (int i = 0; i < n; i++) {
		if (st.empty()) {
			st.push(i); continue;
		}
		while (!st.empty() and query(st.top(), i, i, i)) {
			nextt[st.top()] = i; st.pop();
		}
		st.push(i);
	}
	while (!st.empty()){
		nextt[st.top()] = MS-1; st.pop();
	}
	int root = build(0, n-1);
	for (int i = 0; i < n; i++) left[i] = L[i], right[i] = R[i];
	return root;
}

• Subtask 1: 37 / 37
• Subtask 2: 24 / 24
• Subtask 3: 39 / 39