#include <bits/stdc++.h>
#include <unordered_map>
using namespace std;
typedef long long ll;
typedef vector <ll> row;
typedef vector <row> matrix;
#define endl '\n'
#define fast ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define all(v) ((v).begin()), ((v).end())
#define allR(v) ((v).rbegin()), ((v).rend())
#define For(i,n) for(int i=0;i<(int)(n);i++)
#define sz(v) v.size()
#define swapS(a,b) if(a>b) swap(a,b)
const ll mod = 1e9+7;
const ll OO = 1e18;
const ll invalid = -1e18;
int dx[] = {0,0,-1,1,1,1,-1,-1};
int dy[] = {1,-1,0,0,1,-1,-1,1};
ll fixMod(ll x){
return ((x%mod) + mod) % mod;
}
ll lcm(ll a,ll b){
return max(a,b)/__gcd(a,b)*min(a,b);
}
ll power(ll a,ll b){
if(b==0) return 1;
if(b==1) return a;
if(b&1){
ll y=power(a,b/2);
return (y*y*a);
}
else {
ll y=power(a,b/2);
return (y*y);
}
}
ll inv(ll n){
return power(n,(mod-2));
}
matrix zero(int n,int m){
return matrix(n,row(m,0));
}
matrix identity(int n){
matrix ret = zero(n,n);
for(int i=0;i<n;i++){
ret[i][i] = 1;
}
return ret;
}
matrix multiply(const matrix &a, const matrix &b){
matrix ret = zero(a.size(),b[0].size());
for(int i=0;i<a.size();i++){
for(int k=0;k<a[0].size();k++){
for(int j=0;j<b[0].size();j++){
ret[i][j] += a[i][k] * b[k][j];
ret[i][j] = ret[i][j];
}
}
}
return ret;
}
matrix matrixPower(matrix &a,ll b){
if(b == 0) return identity(a.size());
if(b == 1) return a;
matrix r = matrixPower(a,b/2);
if(b&1) return multiply(multiply(r,r),a);
return multiply(r,r);
}
void solve(){
int n;
cin>>n;
vector <string> v(n);
for(auto &i:v) cin>>i;
map <string,int> frq1;
for(auto i : v){
frq1[i] ++;
}
vector <int> frq2(n);
for(int i2=0;i2<n;i2++){
int cnt=0;
map <string,bool> vis;
for(int i=0;i<sz(v[i2]);i++){
string sub = "";
for(int j=i;j<sz(v[i2]);j++){
sub += v[i2][j];
if(!vis[sub])cnt += frq1[sub];
vis[sub] = 1;
}
}
cnt --;
frq2[i2] = cnt;
}
ll ans = 0;
for(auto i : frq2) ans += i;
cout<<ans<<endl;
}
int main()
{
fast
ll t=1;
// cin>>t;
while(t--){
//Some important Notes:
// 1- Any minus with mod fixed mod
// 2- Any divide with mod inverse
// 3- Any mod problem make mod in every where
// 4- Any dp problem don't forget to return the saved value :)
solve();
}
return 0;
}
Compilation message
lozinke.cpp: In function 'matrix multiply(const matrix&, const matrix&)':
lozinke.cpp:52:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
52 | for(int i=0;i<a.size();i++){
| ~^~~~~~~~~
lozinke.cpp:53:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
53 | for(int k=0;k<a[0].size();k++){
| ~^~~~~~~~~~~~
lozinke.cpp:54:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
54 | for(int j=0;j<b[0].size();j++){
| ~^~~~~~~~~~~~
lozinke.cpp: In function 'void solve()':
lozinke.cpp:82:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
82 | for(int i=0;i<sz(v[i2]);i++){
| ^
lozinke.cpp:84:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
84 | for(int j=i;j<sz(v[i2]);j++){
| ^
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
332 KB |
Output is correct |
| 4 |
Correct |
2 ms |
332 KB |
Output is correct |
| 5 |
Correct |
10 ms |
648 KB |
Output is correct |
| 6 |
Correct |
17 ms |
680 KB |
Output is correct |
| 7 |
Correct |
22 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
35 ms |
2288 KB |
Output is correct |
| 9 |
Correct |
97 ms |
2432 KB |
Output is correct |
| 10 |
Correct |
197 ms |
7544 KB |
Output is correct |
| 11 |
Correct |
155 ms |
4300 KB |
Output is correct |
| 12 |
Correct |
424 ms |
16640 KB |
Output is correct |
| 13 |
Correct |
309 ms |
2916 KB |
Output is correct |
| 14 |
Correct |
299 ms |
15080 KB |
Output is correct |
| 15 |
Correct |
468 ms |
16540 KB |
Output is correct |
| 16 |
Correct |
311 ms |
1284 KB |
Output is correct |
| 17 |
Correct |
111 ms |
1228 KB |
Output is correct |
| 18 |
Correct |
62 ms |
1100 KB |
Output is correct |
| 19 |
Correct |
293 ms |
8640 KB |
Output is correct |
| 20 |
Correct |
155 ms |
1228 KB |
Output is correct |
