Submission #613563

#	Time	Username	Problem	Language	Result	Execution time	Memory
613563		PanTkd	Connecting Supertrees (IOI20_supertrees)	C++14	Compilation error	0 ms	0 KiB

supertrees

//
//  main.cpp
//
//  Created by Panagiotis Chadjicostas on
//  Copyright © Panagiotis Hadjicostas. All rights reserved.
//
#include "supertrees.h"

#include <iostream>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <fstream>
#include <iomanip>
#include <iterator>
#include <limits>
#include <list>
#include <cstring>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>
#include <unordered_map>

using namespace std;

typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll,ll> ii;
#define fo(i,a,b) for(int i = a; i<=b; i++)
#define f(i,b) for(int i=0;i<b;i++)
#define F first
#define S second
#define sz size
#define ls s,m,idx<<1
#define rs m+1,e,idx<<1|1
const ll MOD=ll(1e9)+7;
const ll MAXN=2*ll(1e6);
void checker(){
    ll n=rand()%20+2;
    vi a(n,ll());
    for(ll i=0;i<n;i++){
        a[i]=rand()%20+2;
    }
    for(ll b=0;b<(1<<n);b++){
        vi on,off;
        for(ll i=0;i<n;i++){
            if(i&(1<<i)){
                on.push_back(i);
            }
            else{
                off.push_back(i);
            }
        }
    }
}
///////////////////////////////////////////////////////////////////////
void build(vector<vector<ll> > b){

    for(ll i=0;i<b.size();i++){
        for(ll j=0;j<b[i].size();j++)
            cout<<b[i][j]<<' ';
        cout<<endl;
    }
}
int construct(vector<vector<ll> > p)
{
    ll s=0;
    ll n=p[s].size();
    vector<vector<ll> > b;
    b.assign(n,vi(n,0));
    for(ll i=0;i<n;i++){
        for(ll j=0;j<n;j++){
            if(j==s)
                if(i!=s){
                    b[i][j]=1;
                    b[j][i]=1;
                }
        }   
    }
    build(b);
    return 1;
}

Compilation message (stderr)

supertrees.cpp: In function 'void build(std::vector<std::vector<long long int> >)':
supertrees.cpp:63:17: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |     for(ll i=0;i<b.size();i++){
      |                ~^~~~~~~~~
supertrees.cpp:64:21: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |         for(ll j=0;j<b[i].size();j++)
      |                    ~^~~~~~~~~~~~
/usr/bin/ld: /tmp/ccI1Nr0i.o: in function `main':
grader.cpp:(.text.startup+0x38a): undefined reference to `construct(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)'
collect2: error: ld returned 1 exit status