Submission #715773

#	Time	Username	Problem	Language	Result	Execution time	Memory
715773		snpmrnhlol	Sum Zero (RMI20_sumzero)	C++11	Compilation error	0 ms	0 KiB

sumzero

#include <iostream>
using namespace std;
int v[400001];
struct numbers
{
    int nr,id;
} ps[400001];
int jump[400000][17];
int f[400001];

int main()
{
    int n,i,nr = 2e9,j,l,r,cur = -1,cnt = -1;
    cin>>n;
    for(i = 0; i < n; i++)
    {
        cin>>v[i];
        ps[i + 1] = {ps[i].nr + v[i],i + 1};
    }
    sort(ps,ps + n + 1,[&](numbers a,numbers b)
    {
        return a.nr < b.nr;
    });
    for(i = 0; i <= n; i++)
    {
        if(cur != ps[i].nr)
        {
            cur = ps[i].nr;
            cnt++;
        }
        ps[i].nr = cnt;
    }
    sort(ps,ps + n + 1,[&](numbers a,numbers b)
    {
        return a.id < b.id;
    });
    f[ps[n].nr] = n;
    for(i = n - 1; i >= 0; i--)
    {
        if(f[ps[i].nr] != 0)
        {
            nr = min(nr,f[ps[i].nr]);
        }
        jump[i][0] = (nr==2e9?n + 1:nr);
        f[ps[i].nr] = i;
    }
    for(i = 1; i <= 4; i++)
    {
        for(j = 0; j < n; j++)
        {
            jump[j][i] = (jump[j][i - 1] >= n?n + 1:jump[jump[j][i - 1]][i - 1]);
        }
    }
    int q;
    cin>>q;
    for(i = 0; i < q; i++)
    {
        cin>>l>>r;
        l--;
        r--;
        int cur = l,ans = 0;
        for(j = 4; j >= 0; j--)
        {
            if(cur != n && jump[cur][j] <= r + 1)
            {
                cur = jump[cur][j];
                ans+=(1<<j);
            }
        }
        cout<<ans<<'\n';
    }
    return 0;
}

Compilation message (stderr)

sumzero.cpp: In function 'int main()':
sumzero.cpp:20:5: error: 'sort' was not declared in this scope; did you mean 'qsort'?
   20 |     sort(ps,ps + n + 1,[&](numbers a,numbers b)
      |     ^~~~
      |     qsort