Submission #916434

#	Time	Username	Problem	Language	Result	Execution time	Memory
916434		Jakub_Wozniak	Permutation (APIO22_perm)	C++17	Compilation error	0 ms	0 KiB

perm

#include <bits/stdc++.h>
using namespace std;

vector <pair<int,int>> V;

vector<int> construct_permutation(long long n)
{
    long long MAX = 300;
    vector <int> v;
    vector <bool> B;
    int R = n%3;
    int r[200];

    
    n /= 3;
    if(R)v.push_back(R);

    while (n)
    {
        if(n < 4)
        {
            if(n < 2)break;
            if (n % 4 == 3) v.push_back(1);
            v.push_back(MAX);
            MAX--;
            break;
        }

        if (n % 4 == 1) v.push_back(1);
        if (n % 4 == 3) v.push_back(3);
        v.push_back(MAX);
        MAX--;
        if (n % 4 == 2) v.push_back(1);
        v.push_back(MAX);
        MAX--;
        n /= 4;
    }


    
    v.push_back(1);
    v.push_back(2);
    reverse(v.begin() , v.end());
    


    for(int i = 0 ; i < v.size() ; i++)
    {
        V.push_back({v[i],-i});
    }
    sort(V.begin() , V.end());

    long long akt = 0;
    for(int i = 0 ; i < V.size() ;i++)
    {
        r[-V[i].second] = akt;
        akt++;
    }


    for(int i = 0 ; i < V.size() ; i++)
    {
        v[i] = r[i]; 
    }
    V.clear();
    return v;
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    long long t, n, m, f, xa, ya, xb, yb;
    cin >> t;
    while (t--)
    {
        cin >> n;
        vector <int> k = construct_permutation(n);
        cout << k.size() << '\n';
        for(int i= 0 ; i < k.size() ; i++)
        {
             cout << k[i] << ' ';
        }
        cout << '\n';
    }

    return 0;
}

Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:47:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     for(int i = 0 ; i < v.size() ; i++)
      |                     ~~^~~~~~~~~~
perm.cpp:54:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for(int i = 0 ; i < V.size() ;i++)
      |                     ~~^~~~~~~~~~
perm.cpp:61:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |     for(int i = 0 ; i < V.size() ; i++)
      |                     ~~^~~~~~~~~~
perm.cpp: In function 'int main()':
perm.cpp:80:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |         for(int i= 0 ; i < k.size() ; i++)
      |                        ~~^~~~~~~~~~
perm.cpp:73:21: warning: unused variable 'm' [-Wunused-variable]
   73 |     long long t, n, m, f, xa, ya, xb, yb;
      |                     ^
perm.cpp:73:24: warning: unused variable 'f' [-Wunused-variable]
   73 |     long long t, n, m, f, xa, ya, xb, yb;
      |                        ^
perm.cpp:73:27: warning: unused variable 'xa' [-Wunused-variable]
   73 |     long long t, n, m, f, xa, ya, xb, yb;
      |                           ^~
perm.cpp:73:31: warning: unused variable 'ya' [-Wunused-variable]
   73 |     long long t, n, m, f, xa, ya, xb, yb;
      |                               ^~
perm.cpp:73:35: warning: unused variable 'xb' [-Wunused-variable]
   73 |     long long t, n, m, f, xa, ya, xb, yb;
      |                                   ^~
perm.cpp:73:39: warning: unused variable 'yb' [-Wunused-variable]
   73 |     long long t, n, m, f, xa, ya, xb, yb;
      |                                       ^~
/usr/bin/ld: /tmp/ccBcQGat.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccE16sEv.o:perm.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status