Submission #1557449

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

int main()
{
	int N;
	cin >> N;
	vector<int> cnt(1e5);
	for (int i = 0, a; i < N; i++) {
		cin >> a;
		cnt[a]++;
	}
	int res = 0;
	for (int i = 1; i < 100000 - 1; i++) {
		res = max(res, cnt[i - 1] + cnt[i] + cnt[i + 1]);
	}
	cout << res << endl;
	return 0;
}

Submission Info

Judge Result