Submission #440487

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
440487	2021-07-02 10:19:58	SorahISA	Jelly Flavours (IOI20_jelly)	C++17	100 / 100	46 ms	588 KiB

jelly

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#include "jelly.h"
#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;
template<typename T>
using Prior = std::priority_queue<T>;
template<typename T>
using prior = std::priority_queue<T, vector<T>, greater<T>>;
#define A first
#define B second
#define eb emplace_back
#define pb pop_back
#define pf pop_front
#define ALL(x) begin(x), end(x)
#define RALL(x) rbegin(x), rend(x)
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
int find_maximum_unique(int X, int Y, vector<int> _A, vector<int> _B) {
    int N = _A.size();
    
    vector<pii> AB;
    for (int i = 0; i < N; ++i) AB.eb(_A[i], _B[i]);
    sort(ALL(AB));
    
    /**
     *   Sort items by A[i], then there must exist an place p \in [0, N] such that
     *   - for items i which 0 \le i < p, we either buy it with A[i] or B[i]
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 24 / 24
• Subtask 3: 9 / 9
• Subtask 4: 10 / 10
• Subtask 5: 14 / 14
• Subtask 6: 32 / 32