Submission #448379

#	Time	Username	Problem	Language	Result	Execution time	Memory
448379		tredsused70	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

int find_subset(int l,int u,int mas_[],int n,int ans[])
{
    int used[100100]={0},m=0,pos;
    array<int,2> mas[100100];
    ll sum=0;
    for(int i=0;i<n;i++)
        mas[i]={mas_[i],i+1};
    sort(mas,mas+n);
    for(int i=0;i<n;i++)
    {
        sum+=mas[i][0];
        if(sum>u)
        {
            sum-=mas[i][0];
            break;
        }
        used[mas[i][1]]=1;
        ans[m]=mas[i][1];
        m++;
        if(sum>=l)
            return m;
    }
    for(int i=m-1;i>=0;i--)
    {
        if(used[mas[n-m+i][1]])
            continue;
        used[mas[i][1]]=0;
        used[mas[n-m+i][1]]=1;
        sum-=mas[i][0];
        sum+=mas[n-m+i][0];
        ans[i]=mas[n-m+i][1];
        if(sum>=l)
            return m;
    }
    return 0;
}

Compilation message (stderr)

molecules.cpp: In function 'int find_subset(int, int, int*, int, int*)':
molecules.cpp:4:5: error: 'array' was not declared in this scope
    4 |     array<int,2> mas[100100];
      |     ^~~~~
molecules.cpp:4:11: error: expected primary-expression before 'int'
    4 |     array<int,2> mas[100100];
      |           ^~~
molecules.cpp:5:5: error: 'll' was not declared in this scope; did you mean 'l'?
    5 |     ll sum=0;
      |     ^~
      |     l
molecules.cpp:7:9: error: 'mas' was not declared in this scope; did you mean 'mas_'?
    7 |         mas[i]={mas_[i],i+1};
      |         ^~~
      |         mas_
molecules.cpp:8:10: error: 'mas' was not declared in this scope; did you mean 'mas_'?
    8 |     sort(mas,mas+n);
      |          ^~~
      |          mas_
molecules.cpp:8:5: error: 'sort' was not declared in this scope; did you mean 'short'?
    8 |     sort(mas,mas+n);
      |     ^~~~
      |     short
molecules.cpp:11:9: error: 'sum' was not declared in this scope
   11 |         sum+=mas[i][0];
      |         ^~~
molecules.cpp:29:9: error: 'sum' was not declared in this scope
   29 |         sum-=mas[i][0];
      |         ^~~
molecules.cpp:3:30: warning: unused variable 'pos' [-Wunused-variable]
    3 |     int used[100100]={0},m=0,pos;
      |                              ^~~