Submission #1200702

#	Time	Username	Problem	Language	Result	Execution time	Memory
1200702		kadir	Sequence (APIO23_sequence)	C++20	Compilation error	0 ms	0 KiB

sequence

#include<bits/stdc++.h>
#define ull unsigned long long
#define ll long long
#define ff first
#define ss second
#define pb push_back
using namespace std;
const ll mod=1e9+7;
const ll inf=1e18;
const ll mxn=1e6+5;
const ll MAX=1e9+6;
const ll logk=18;
int sequence(int n,vector<int> v) {
	int mx=0;
	if(v.size()==1) {
		return 1;
	}
	for(int i=0; i<n-1; i++) {
		vector<int> v1;
		map<int,int> mp;
		for(int j=i; j<n; j++) {
			v1.pb(v[j]);
			mp[v[j]]++;
			sort(v1.begin(),v1.end());
			if(v1.size()==1) {
				mx=max(mx,mp[v1[0]]);
			} else {
				if(v1.size()%2) {
					mx=max(mx,mp[v1[v1.size()/2]]);
				} else {
					mx=max({mx,mp[v1.size()/2],mp[v1.size()/2-1]});
				}
			}
		}
	}
	return mx;
}
int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int n;
	cin>>n;
	vector<int> v(n);
	for(int i=0; i<n; i++) {
		cin>>v[i];
	}
	int res=sequence(n,v);
	cout<<res<<"\n";
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccW3su3N.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccsWBnW4.o:sequence.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status