Submission #1794248

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Source Code Expand

#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define all(a) (a).begin(),(a).end()
#define pb emplace_back
#define INF (1e9+1)

int main(){
    int n;
    cin>>n;
    
    vector<int> v(n);
    rep(i,n)cin>>v[i];
    
    vector<int> t(100001,0);
    rep(i,v.size()){
        t[v[i]]++;
        t[v[i]+1]++;
        t[v[i]+2]++;
    }
    
    cout<<*max_element(all(t))<<endl;
}

Submission Info

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