제출 #472999

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
472999		MamdouhN	Lozinke (COCI17_lozinke)	C++17	25 / 100	1100 ms	65540 KiB

lozinke

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"

int n,ans;
string password[20005];
//map<string,bool>idk;
map<string,map<string,bool>>idk;

void get_subs(string s)
{
    string x;
    for(int i=0;i<s.size();i++)
    {
        x+=s[i];
        idk[s][x]=1;
        string y;
        int j = i;
        while(j>=0&&y.size()<s.size())
        {
            y=s[j]+y;
            idk[s][y]=1;
            j--;
        }
    }
}

void check(string a,string b)
{
    if(idk[a][b])ans++;
}

main()
{
    cin>>n;
    for(int i=0;i<n;i++)cin>>password[i];
    for(int i=0;i<n;i++)
    {
        get_subs(password[i]);
    }
    for(int i=0;i<n;i++)
    {
        for(int j=0;j<n;j++)
        {
            if(j==i)continue;
            if(password[j].size()>password[i].size())continue;
            //cout<<password[i]<<" "<<password[j]<<endl;
            check(password[i],password[j]);
            //cout<<ans<<endl;
        }
    }
    cout<<ans<<endl;
}

컴파일 시 표준 에러 (stderr) 메시지

lozinke.cpp: In function 'void get_subs(std::string)':
lozinke.cpp:14:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     for(int i=0;i<s.size();i++)
      |                 ~^~~~~~~~~
lozinke.cpp: At global scope:
lozinke.cpp:34:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   34 | main()
      | ^~~~

• Subtask 1: 25 / 100