Problem:
Score : 200 points

Problem Statement

Given are two strings S and T.

Let us change some of the characters in S so that T will be a substring of S.

At least how many characters do we need to change?

Here, a substring is a consecutive subsequence. For example, xxx is a substring of yxxxy, but not a substring of xxyxx.

Constraints

The lengths of S and T are each at least 1 and at most 1000.

The length of T is at most that of S.

S and T consist of lowercase English letters.

Input

Input is given from Standard Input in the following format:

S
T

Output

Print the minimum number of characters in S that need to be changed.

Sample Input 1

cabacc
abc

Sample Output 1

1

For example, changing the fourth character a in S to c will match the second through fourth characters in S to T.

Since S itself does not have T as its substring, this number of changes - one - is the minimum needed.

Sample Input 2

codeforces
atcoder

Sample Output 2

6

Solution in C++ (GCC 9.2.1) (judge verdict: Wrong Answer)

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

typedef long long ll;
typedef unsigned long long ull;

void shit(){
    string s,t;
    int max_=-1;
    cin>>s>>t;
    for(int i=0;i<s.size();i++)
    {
        int temp=0;
        int ii=i;
        //cout<<ii<<" sa"<<endl;
        for(int j=0;j<t.size();j++)
        {
            //cout<<j<<endl;
            if(ii<s.size()&&s[ii]==t[j])
            {
                temp++;
                ii++;
            }
            else
            {
                temp=0;
            }
        }
        if(temp>max_)
            max_=temp;
    }
    cout<<t.size()-max_;
}

int main() {
    int _=1;
//    cin>>_;
    while (_--){
        shit();
    }
    return 0;
}