Submission #100178

#	Time	Username	Problem	Language	Result	Execution time	Memory
100178		pamaj	Rima (COCI17_rima)	C++14	0 / 140	94 ms	41676 KiB

rima

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

const int maxn = 5e5 + 10;

int dp[maxn], n;
vector<string> s;

bool rhyme(const string& a, const string& b)
{
	int u = (int)a.size() - 1, v = (int)b.size() - 1;

	int cont = 0;
	while(a[u] == b[v] and u >= 0 and v >= 0)
	{
		cont++, u--, v--;
	}

	if(cont >= max((int)a.size(), (int)b.size()) - 1) return true;
	return false;
}

int solve(int i, int j)
{
	if(dp[i] != -1) return dp[i];

	if(i == n) return 0;

	int caso1;

	if(i == j)
	{
		caso1 = solve(i + 1, i + 1);
	}
	else 
		caso1 = solve(i + 1, j);
	
	int caso2;

	if(rhyme(s[i],s[j]))
	{
		caso2 = solve(i + 1, i) + 1;
	}
	else 
		caso2 = 0;


	return dp[i] = max(caso1, caso2);
}

int main()
{
	ios::sync_with_stdio(false), cin.tie(nullptr);

	cin >> n;

	for(int i = 0; i < n; i++)
	{
		string a;
		cin >> a;
		s.push_back(a);
	}

	memset(dp, -1, sizeof(dp));

	cout << solve(0, 0) << "\n";
}

• Subtask 1: 0 / 140