제출 #730942

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
730942		TheSahib	Lozinke (COCI17_lozinke)	C++14	100 / 100	235 ms	13644 KiB

lozinke

#include <bits/stdc++.h>

#define ll long long
#define pii pair<int, int>
const int oo = int(1e9) + 9;

using namespace std;

int n;
string arr[20006];
ll hashs[20006];
map<ll, int> mp;

int main(){
    cin >> n;
    for (int i = 0; i < n; ++i)
    {
        string s; cin >> s;
        arr[i] = s;
        set<ll> st;
        for (int j = 0; j < s.size(); ++j)
        {
            ll h = 0;
            for (int k = j; k < s.size(); k++)
            {
                h = (h * 26) + s[k] - 'a' + 1;
                st.insert(h);
                if(j == 0 && k == s.size() - 1){
                    hashs[i] = h;
                }
            }
        }
        for(auto& a:st){
            mp[a]++;
        }
    }
    ll ans = 0;
    for (int i = 0; i < n; i++)
    {
        ans += mp[hashs[i]] - 1;
    }
    cout << ans << '\n';
}

컴파일 시 표준 에러 (stderr) 메시지

lozinke.cpp: In function 'int main()':
lozinke.cpp:21:27: 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 j = 0; j < s.size(); ++j)
      |                         ~~^~~~~~~~~~
lozinke.cpp:24:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |             for (int k = j; k < s.size(); k++)
      |                             ~~^~~~~~~~~~
lozinke.cpp:28:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |                 if(j == 0 && k == s.size() - 1){
      |                              ~~^~~~~~~~~~~~~~~

• Subtask 1: 100 / 100