Submission #1333856

#	Time	Username	Problem	Language	Result	Execution time	Memory
1333856		hmms127	Sequence (APIO23_sequence)	C++20	Compilation error	0 ms	0 KiB

sequence

#include "bits/stdc++.h"
using namespace std;
#define f1(n) for(int i=0;i<n;i++)
#define f3(n) for(int j=0;j<n;j++)
#define f2(m,n,q) for(int i=m;i<n;i++)
#define f4(m,n,q) for(int j=m;j<n;j++)
#define int long long
#define pb push_back
constexpr int N=2e5+5,LOG=21,mod=1e9+7,inf=1e15;
using pr=pair<int,int>;
using ar=array<int,3>;
signed main(){
    ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
    int tt=1;//cin>>tt;
    while(tt--){
        int n;cin>>n;
        int a[n];f1(n)cin>>a[i];
        sort(a,a+n);
        int ans=0;
        for (int l=0;l<n;l++) {
            vector<int>v;vector<int>frq(n+1,0);
            for (int r=l;r<n;r++) {
                v.pb(a[r]);
                frq[a[r]]++;
                sort(v.begin(),v.end());
                if ((r-l+1)%2) {
                    ans=max(ans,frq[v[(int)(v.size()/2)]]);
                }
                else ans=max({ans,frq[v[(int)(v.size()/2)]],frq[v[(int)(v.size()/2)-1]]});
            }
        }
        cout<<ans;
    }
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccDxFuqL.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccyC5O5g.o:sequence.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccDxFuqL.o: in function `main':
grader.cpp:(.text.startup+0x283): undefined reference to `sequence(int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status