Submission #1575714

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Source Code Expand

#include <iostream>
#include <vector>
#include <map>
#include <string>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <stdio.h>
using namespace std;
#define int long long

signed main() {
	
	string S;
	cin >> S;
	int res = 100000000;
	int d;
	int k;
	for (char c = 'a'; c <= 'z'; c++) {
		k = 0;
		d = -1;
		for (int i = S.size() - 1; i >= 0; i--) {
			if (S[i] == c) {
				k = 0;
			}
			else {
				k++;
			}
			d = max(d, k);
		}
		res = min(res, d);
	}
	cout << res << endl;
	
	return 0;
}

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