Submission #914711

#	Time	Username	Problem	Language	Result	Execution time	Memory
914711		racsosabe	Lozinke (COCI17_lozinke)	C++14	100 / 100	287 ms	16728 KiB

lozinke

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

const int N = 20000 + 5;

int n;
string s[N];

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cin >> n;
	map<string, int> frec;
	for(int i = 1; i <= n; i++) {
		cin >> s[i];
		frec[s[i]] += 1;
	}
	long long res = 0;
	for(int id = 1; id <= n; id++) {
		set<string> used;
		for(int i = 0; i < s[id].size(); i++) {
			string cur = "";
			for(int j = i; j < s[id].size(); j++) {
				cur.push_back(s[id][j]);
				if(!used.count(cur)) {
					used.emplace(cur);
					res += frec[cur];
				}
			}
		}
		res -= 1;
	}
	cout << res << endl;
	return 0;
}

Compilation message (stderr)

lozinke.cpp: In function 'int main()':
lozinke.cpp:21:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |   for(int i = 0; i < s[id].size(); i++) {
      |                  ~~^~~~~~~~~~~~~~
lozinke.cpp:23:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |    for(int j = i; j < s[id].size(); j++) {
      |                   ~~^~~~~~~~~~~~~~

• Subtask 1: 100 / 100