Submission #1178425

#	Time	Username	Problem	Language	Result	Execution time	Memory
1178425		Agageldi	Sequence (APIO23_sequence)	C++20	Compilation error	0 ms	0 KiB

sequence

#include "bits/stdc++.h"
#include "sequence.h"
#include "grader.cpp"
using namespace std;

#define MAX_N 5000005
#define ll long long
#define SZ(v) (int)v.size()

ll a[MAX_N], n, ans, jogap = -1, tr = 0;
vector <int> v;

int sequence(int N, vector<int> A) {
  for(int i = 0;i < N; i++) {
    a[A[i]]++;
    if(a[A[i]] >= N / 2 + 1) jogap = a[A[i]];
    if(i > 0 && A[i] < A[i - 1]) tr = 1;
  }
  if(~jogap) return jogap;
  if(!tr) {
    int p = 0, cnt = 0;
    for(int i = 0; i < N - 1; i++){
      if(A[i] != A[i + 1]) {
        cnt = max(p + 1, cnt);
        p = 0;
        continue;
      }
      p++;
    }
    return max(cnt, p + 1);
  }
  memset(a,0,sizeof a);
  for(int i = 0; i < N; i++) {
    v.clear();
    for(int j = i; j < N; j++) {
      a[A[j]]++;
      v.push_back(A[j]);
      int ind = SZ(v) - 1;
      while(ind > 0 && v[ind] < v[ind - 1]) {
        swap(v[ind], v[ind - 1]);
        ind--;
      }
      int med = (SZ(v) / 2);
      ans = max({ans,a[v[med]],a[v[med - ((j - i + 1) % 2 == 0)]]});
    }
    for(int j = i; j < N; j++) {
      a[A[j]]--;
    }
  }
  return ans;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccAlDZLJ.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccguRAk0.o:sequence.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status