Submission #1016029

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1016029	2024-07-07T10:03:12 Z	amine_aroua	Magic Show (APIO24_show)	C++17	Compilation error	0 ms	0 KB

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().
const int N = 4976;
const int CNT = (N - 1)/25;
vector<int> bits[25];

std::vector<std::pair<int,int>> Alice(){
    mt19937 rng(1313);
	vector<int> perm;
    for(int i = 2 ; i <= N ; i++)
        perm.push_back(i);
    shuffle(perm.begin() , perm.end() , rng);
    for(int i = 0 ; i < 25 ; i++)
    {
        for(int j = i * CNT ; j < (i + 1) * CNT ; j++)
        {
            bits[i].push_back(perm[j]);
        }
    }
    long long X = setN(N);
    vector<pair<int ,int>> vp;
    int b = 0;
    for(int i = 0 ; i < 25 ; i++)
    {
        if((1<<i) & X)
        {
            b = i;
            for(auto j : bits[i])
                vp.push_back({1 , j});
        }
    }
    for(int i =0 ; i < 25 ; i++)
    {
        if((1<<i) & X)
            continue;
        for(auto j : bits[i])
        {
            vp.push_back({bits[b].back() , j});
        }
    }
    return vp;
}
//int main()
//{
//    Alice();
//}

Bob

Compilation message

/usr/bin/ld: /tmp/cc2Cjif8.o: in function `main':
grader_bob.cpp:(.text.startup+0x324): undefined reference to `Bob(std::vector<std::pair<int, int>, std::allocator<std::pair<int, int> > >)'
collect2: error: ld returned 1 exit status