Submission #725434

#	Time	Username	Problem	Language	Result	Execution time	Memory
725434		AndrijaM	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
 
using namespace std;
 
vector<int>arr;
int n;
int mx=0;
int dp[105][1005];
 
int f(int idx,int x,&vector<int>vec,vector<int>kolku)
{
    if(idx==n)
    {
        arr=vec;
        return 0;
    }
    if(dp[idx][x]!=-1)return dp[idx][x];
    int rez=0;
    rez=max(rez, f(idx+1,x,vec,kolku));
    if(x+kolku[idx]<=mx)
    {
        vector<int>pom;
        pom=vec;
        pom.push_back(idx);
        rez=max(rez, f(idx+1,x+kolku[idx],pom,kolku)+kolku[idx]);
    }
    return dp[idx][x]=rez;
}
 
vector<int> find_subset(int l, int u, vector<int> w)
{
    memset(dp,-1,sizeof dp);
    vector<int>v;
    mx=u;
    n=(int)w.size();
    int kol=0;
    kol+=f(0,0,v,w);
    int sum=0;
    for(int i=0;i<n;i++)
    {
        sum+=w[i];
    }
    if(sum<l)
    {
        return {};
    }
    if(kol<l)
    {
        return { };
    }
    else
    return arr;
}

Compilation message (stderr)

molecules.cpp:10:21: error: expected identifier before '&' token
   10 | int f(int idx,int x,&vector<int>vec,vector<int>kolku)
      |                     ^
molecules.cpp:10:22: error: expected ',' or '...'
   10 | int f(int idx,int x,&vector<int>vec,vector<int>kolku)
      |                      ^~~~~~~~~~~
molecules.cpp: In function 'int f(int, int, int&)':
molecules.cpp:14:13: error: 'vec' was not declared in this scope
   14 |         arr=vec;
      |             ^~~
molecules.cpp:19:28: error: 'vec' was not declared in this scope
   19 |     rez=max(rez, f(idx+1,x,vec,kolku));
      |                            ^~~
molecules.cpp:19:32: error: 'kolku' was not declared in this scope
   19 |     rez=max(rez, f(idx+1,x,vec,kolku));
      |                                ^~~~~
molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:37:16: error: invalid initialization of reference of type 'int&' from expression of type 'std::vector<int>'
   37 |     kol+=f(0,0,v,w);
      |                ^
molecules.cpp:10:21: note: in passing argument 3 of 'int f(int, int, int&)'
   10 | int f(int idx,int x,&vector<int>vec,vector<int>kolku)
      |                     ^~~~~~~~~~~~