Submission #554689

#	Time	Username	Problem	Language	Result	Execution time	Memory
554689		new_acc	Lozinke (COCI17_lozinke)	C++14	100 / 100	143 ms	41132 KiB

lozinke

#include<bits/stdc++.h>
#define fi first
#define se second
#define pitem item*
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef vector<ll> vl;
const int N=1e6+10;
const int SS=1<<19;
const int INFi=2e9;
const ll INFl=1e13;
const ll mod=998244353;
const ll mod2=1e9+7;
const ll mod3=1000696969;
const ll p=70032301;
const ull p2=913;
const int L=20;
int t[N];
string s[N];
unordered_map<ull,int> m;
unordered_map<ull,bool> m2;
void solve(){
	int n;
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>s[i];
		ull akth=0;
		for(int j=0;j<s[i].size();j++) akth=akth*p2+s[i][j];
		m[akth]++;
	}
	ll res=0;
	for(int i=1;i<=n;i++){
		for(int j=0;j<s[i].size();j++){
			ull akth=0;
			for(int k=j;k<s[i].size();k++){
				akth=(akth*p2+s[i][k]);
				if(m2[akth]) continue;
				res+=m[akth];
				m2[akth]=1;
			}
		}
		m2.clear();
		res--;
	}
	cout<<res<<"\n";
}
int main(){
	ios_base::sync_with_stdio(0),cin.tie(0);
	solve();
}

Compilation message (stderr)

lozinke.cpp: In function 'void solve()':
lozinke.cpp:30:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |   for(int j=0;j<s[i].size();j++) akth=akth*p2+s[i][j];
      |               ~^~~~~~~~~~~~
lozinke.cpp:35:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |   for(int j=0;j<s[i].size();j++){
      |               ~^~~~~~~~~~~~
lozinke.cpp:37:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |    for(int k=j;k<s[i].size();k++){
      |                ~^~~~~~~~~~~~

• Subtask 1: 100 / 100