Submission #1016098

#	Time	Username	Problem	Language	Result	Execution time	Memory
1016098		vjudge1	Bajka (COCI20_bajka)	C++17	70 / 70	56 ms	788 KiB

bajka

#include <bits/stdc++.h>

using namespace std;

const int inf = 1e6;

int main()
{
	int n,m;
	cin>>n>>m;
	string s,t;
	cin>>s>>t;
	int dp[n][m+1];
	for (int i=0;i<n;i++)
		for (int j=0;j<=m;j++)
			dp[i][j]=inf*(j>0);
	vector<int> ind[256];
	for (int i=0;i<n;i++)
		ind[s[i]].push_back(i);
	for (int j=1;j<=m;j++)
		for (int i=0;i<n;i++)
		{
			for (int k:ind[s[i]])
			{
				if (k && s[k-1]==t[m-j])
					dp[i][j]=min(dp[i][j],dp[k-1][j-1]+1+abs(i-k));
				if (k<n-1 && s[k+1]==t[m-j])
					dp[i][j]=min(dp[i][j],dp[k+1][j-1]+1+abs(i-k));
			}
		}
	int ans=inf;
	for (int i=0;i<n;i++)
		if (s[i]==t[0])
			ans=min(ans,dp[i][m-1]);
	if (ans>=inf)
		ans=-1;
	cout<<ans<<endl;
	
	return 0;
}

Compilation message (stderr)

bajka.cpp: In function 'int main()':
bajka.cpp:19:11: warning: array subscript has type 'char' [-Wchar-subscripts]
   19 |   ind[s[i]].push_back(i);
      |           ^
bajka.cpp:23:23: warning: array subscript has type 'char' [-Wchar-subscripts]
   23 |    for (int k:ind[s[i]])
      |                       ^

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