Submission #761927

#	Time	Username	Problem	Language	Result	Execution time	Memory
761927		AirCircles	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

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

typedef vector<long long> vec;
typedef long long ll;

vec find_subset(ll l, ll u, vec w ){
    int n=w.size();
    vec dm(0);
    vector<pair<ll,ll> >dn(n);
    for(int i=0;i<n;i++){
        dn[i].first=w[i];
        dn[i].second=i;
    }
    sort(dn.begin(),dn.end());
    vec mi(n),mx(n);
    mi[0]=dn[0].first;
    mx[0]=dn[n-1].first;
    for(int i=1;i<n;i++){
        mi[i]=mi[i-1]+dn[i].first;
        mx[i]=mx[i-1]+dn[n-1-i].first;
    }
    for(int i=0;i<n;i++){
        if(mi[i]>u||mx[i]<l){
            if(mx[i]<l){
                continue;
            }else{
                dm.resize(1,0);
                break;
            }
        }else{
            ll k=mi[i];
            int kk=n;
            for(int j=0;j<n;j++){
                if(k>=l){
                    kk=j;
                    break;
                }else{
                    k+=dn[n-1-j].first-dn[j].first;
                }
            }
            for(int j=kk;j<=i;j++){
                dm.push_back(dn[j].second);
            }
            for(int j=n-1;j>=n-kk;j--){
                dm.push_back(dn[j].second);
            }
            break;
        }
    }
    return dm;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccCMYrTj.o: in function `main':
grader.cpp:(.text.startup+0x18d): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status