Submission #957595

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
957595	2024-04-04 04:59:10	zeta7532	Sequence (APIO23_sequence)	C++17	28 / 100	1285 ms	2097152 KiB

sequence

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#include "sequence.h"
#include <bits/stdc++.h>
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
using namespace std;
using ll = int;
const ll mod = 998244353;
#define fi first
#define se second
#define rep(i,n) for(ll i=0;i<n;i++)
#define all(x) x.begin(),x.end()
#define faster ios::sync_with_stdio(false);cin.tie(nullptr)
int sequence(int N, std::vector<int> A) {
    int ans=0;
    vector<vector<int>> cum(N+1,vector<ll>(N+1,0));
    rep(i,N) cum[i+1][A[i]]++;
    rep(i,N) rep(j,N+1) cum[i+1][j]+=cum[i][j];
    rep(l,N){
        multiset<ll> s1,s2;
        for(ll r=l;r<N;r++){
            s2.insert(A[r]);
            while(s1.size()>0&&s2.size()>0&&(*s1.rbegin()>*s2.begin())){
                s1.insert(*s2.begin());
                s2.erase(s2.find(*s2.begin()));
            }
            while(((ll)s2.size()-(ll)s1.size())>=2){
                s1.insert(*s2.begin());
                s2.erase(s2.find(*s2.begin()));
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 17 / 17
• Subtask 3: 0 / 7
• Subtask 4: 0 / 12
• Subtask 5: 0 / 13
• Subtask 6: 0 / 22
• Subtask 7: 0 / 18