Submission #804714

#	Time	Username	Problem	Language	Result	Execution time	Memory
804714		tlnk07	Bajka (COCI20_bajka)	C++17	20 / 70	1079 ms	300 KiB

bajka

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

long long n, m, mini = INT_MAX;
string s, str;

long long backtrack(int pos, int x)
{
	if(x == m)	return 0;
	long long temp = INT_MAX;
	for(int i = 0; i < n; ++i)
	{
		if(s[i] == s[pos])
		{
			if(i < n - 1 && s[i + 1] == str[x])	temp = min(temp, backtrack(i + 1, x + 1) + abs(pos - i) + 1);
			if(i > 0 && s[i - 1] == str[x])	temp = min(temp, backtrack(i - 1, x + 1) + abs(pos - i) + 1);
		}
	}
	return temp;
}

int main()
{
	cin >> n >> m >> s >> str;
	for(int i = 0; i < n; ++i)	if(s[i] == str[0])	mini = min(mini, backtrack(i, 1));
	if(mini < INT_MAX)	cout << mini;
	else	cout << -1;
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 50