Submission #2251133

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define pb push_back
#define boost ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define pii pair<ll,ll>
int main()
{
    boost;
    int n,x,ans=0;
    cin>>n;
    int arr[n];map<int,int> m1;
    for(int i=0;i<n;i++)
    {
        cin>>arr[i];
        m1[arr[i]]++;
    }
    for(int i=0;i<n;i++)
    {
        int p=m1[arr[i]-1];
        int q=m1[arr[i]+1];
        ans=max(ans,p+q+1);
    }
    cout<<ans<<endl;
}

Submission Info

Judge Result