Submission #1022727

#TimeUsernameProblemLanguageResultExecution timeMemory
1022727Rolo678Progression (NOI20_progression)C++14
0 / 100
383 ms4948 KiB
#include<bits/stdc++.h>
using namespace std;

int main()
{
   ios_base::sync_with_stdio(false);
   int n,q;
  cin >> n >> q;
  vector<int>a(n+1,0);
  vector<long long>b(n+1,0);
  for(int i = 1;i<=n;i++)
  {
    cin >> a[i];
    b[i] = a[i] -a[i-1];
  }

  int flag = 2;
  int temp =2;
  int c = b[2];

  for(int i = 3;i<=n;i++)
  {
     if(b[i] == c)
     {
         temp++;
         flag = max(flag,temp);
     }
     else
     {
         c = b[i];
         temp = 1;
     }
  }

  while(q--)
  {
    int k;
       int r,l,s,c;
    cin >> k;
    if(k == 1)
    {
      cin >> l >> r >> s >> c;
    }

    else if (k==2)
    {
      cin >> l >> r >> s >> c;
      flag = n;
    }
    else
    {
      cin >> l >> r;

        cout << flag << '\n';

    }

  }

}
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