Submission #1014221

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014221		Mousa_Aboubaker	Magic Show (APIO24_show)	C++17	0 / 100	1 ms	344 KiB

Alice

#include <bits/stdc++.h>
#include "Alice.h"

using namespace std;

// you may define some global variables, but it does not work if you try to transfer any information from function Alice() to function Bob() through these variables.
// you had better not use the same global variables in function Alice() and in function Bob().

vector<pair<int,int>> Alice(){
	// add your code here
	
	// change below into your code
    long long x = setN(5000);
    vector<pair<int, int>> p;
    vector<int> bits;
    for(int i = 0; i < 60; i++)
    {
        if(x & (1ll << i))
        {
            bits.push_back(i+2);
        }
    }
    int m = 1;
    for(int i = 1; i <= 5000 and p.size() < 4999; i++)
    {
        for(int j = 0; j < bits.size() and p.size() < 4999; j++)
        {
            p.push_back({i, bits[j]});
        }
    }

    random_shuffle(p.begin()+1, p.end());

    return p;
}

Bob

#include <bits/stdc++.h>
#include "Bob.h"

using namespace std;

// you may define some global variables, but it does not work if you try to transfer any information from function Alice() to function Bob() through these variables.
// you had better not use the same global variables in function Alice() and in function Bob().

long long Bob(vector<pair<int, int>> V)
{
    // add your code here

    set<int> bits;
    for (auto el : V)
    {
        bits.insert(el.first - 2);
    }

    long long x = 0;
    for (int el : bits)
    {
        x |= (1ll << el);
    }
    return x; // change this into your code
}

Compilation message (stderr)

Alice.cpp: In function 'std::vector<std::pair<int, int> > Alice()':
Alice.cpp:26:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |         for(int j = 0; j < bits.size() and p.size() < 4999; j++)
      |                        ~~^~~~~~~~~~~~~
Alice.cpp:23:9: warning: unused variable 'm' [-Wunused-variable]
   23 |     int m = 1;
      |         ^

• Subtask 1: 0 / 5
• Subtask 2: 0 / 30
• Subtask 3: 0 / 65