Submission #80253

#	Time	Username	Problem	Language	Result	Execution time	Memory
80253		MatheusLealV	Lozinke (COCI17_lozinke)	C++17	100 / 100	632 ms	15788 KiB

lozinke

#include <bits/stdc++.h>
#define N 20050
using namespace std;
typedef long long ll;

int n;

ll ans;

unordered_map<string, int> mapa;

string v[N];

int main()
{
	ios::sync_with_stdio(false); cin.tie(0);

	cin>>n;

	for(int t = 1; t <= n; t++)
	{
		string s;

		unordered_set<string> ss;

		cin>>s;

    v[t] = s;

		ans += (ll)mapa[s];

		for(int i = 0; i < s.size(); i++)
		{
			string aux;

			for(int j = i; j < s.size(); j++)
			{
				aux.push_back(s[j]);

				ss.insert(aux);
			}
		}

		for(auto x: ss) mapa[x] ++;
	}

  mapa.clear();

  for(int t = n; t >= 1; t--)
	{
		string s = v[t];

		unordered_set<string> ss;

		ans += (ll)mapa[s];

		for(int i = 0; i < s.size(); i++)
		{
			string aux;

			for(int j = i; j < s.size(); j++)
			{
				aux.push_back(s[j]);

				ss.insert(aux);
			}
		}

		for(auto x: ss) mapa[x] ++;
	}

	cout<<ans<<"\n";
}

Compilation message (stderr)

lozinke.cpp: In function 'int main()':
lozinke.cpp:32:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0; i < s.size(); i++)
                  ~~^~~~~~~~~~
lozinke.cpp:36:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int j = i; j < s.size(); j++)
                   ~~^~~~~~~~~~
lozinke.cpp:57:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0; i < s.size(); i++)
                  ~~^~~~~~~~~~
lozinke.cpp:61:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int j = i; j < s.size(); j++)
                   ~~^~~~~~~~~~

• Subtask 1: 100 / 100