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PickingNumbers.cpp
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50 lines (46 loc) · 835 Bytes
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#include <map>
#include <set>
#include <list>
#include <cmath>
#include <ctime>
#include <deque>
#include <queue>
#include <stack>
#include <string>
#include <bitset>
#include <cstdio>
#include <limits>
#include <vector>
#include <climits>
#include <cstring>
#include <cstdlib>
#include <fstream>
#include <numeric>
#include <sstream>
#include <iostream>
#include <algorithm>
#include <unordered_map>
using namespace std;
int main(){
int n,flag=1,ctr=0,j;
cin >> n;
int a[n];
for(int a_i = 0;a_i < n;a_i++){
cin >> a[a_i];
}
sort(a,a+n);
for(int i=0;i<n;i++)
{ ctr=0;
if(a[i+1]-a[i]<=1)
{ ctr=0;
for(j=i;a[j]-a[i]<=1;j++)
{
ctr++;
}
}
if(ctr>flag)
flag=ctr;
}
cout<<flag;
return 0;
}