oj.uz

Submission #280454

# Submission time Handle Problem Language Result Execution time Memory
280454 2020-08-22T19:28:28 Z Revo7 Lozinke (COCI17_lozinke) C++14
85 / 100
 145 ms 9264 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define left 2*i+1
#define righ 2*i+2
#define mid (l+r)/2
#define IOS ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);

using namespace std;
const ll maxn=2e4+100;
const ll mod=1e9+9;
const ll base=27;

ll n;
string s[maxn];
unordered_map<ll,ll>cnt;
ll ans=0;
unordered_map<ll,bool>vis;
void solve(ll i){
    vis.clear();
    for(ll l=0;l<s[i].size();l++){
        ll ha=0;
        for(ll r=l;r<s[i].size();r++){
            ha=ha*base%mod;
            ha=(ha+(s[i][r]-'a'+1))%mod;
            if(!vis[ha]){
                ans+=cnt[ha];
                vis[ha]=1;
            }
        }
    }
    ans--;
}
int main()
{
    //setIO("threesum");
    IOS
    cin>>n;
    for(ll i=0;i<n;i++)cin>>s[i];

    for(ll i=0;i<n;i++){
        ll ha=0;
        for(ll j=0;j<s[i].size();j++){
            ha=ha*base%mod;
            ha=(ha+(s[i][j]-'a'+1))%mod;
        }
        cnt[ha]++;
    }

    for(ll i=0;i<n;i++)solve(i);
    cout<<ans<<endl;
    return 0;
}

Compilation message

lozinke.cpp: In function 'void solve(long long int)':
lozinke.cpp:21:17: 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]
   21 |     for(ll l=0;l<s[i].size();l++){
      |                ~^~~~~~~~~~~~
lozinke.cpp:23:21: 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]
   23 |         for(ll r=l;r<s[i].size();r++){
      |                    ~^~~~~~~~~~~~
lozinke.cpp: In function 'int main()':
lozinke.cpp:43:21: 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]
   43 |         for(ll j=0;j<s[i].size();j++){
      |                    ~^~~~~~~~~~~~

Subtask #1
85.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 2 ms 1024 KB Output is correct
5 Correct 5 ms 1152 KB Output is correct
6 Correct 5 ms 1152 KB Output is correct
7 Correct 7 ms 1536 KB Output is correct
8 Correct 10 ms 1920 KB Output is correct
9 Correct 26 ms 1920 KB Output is correct
10 Correct 52 ms 4636 KB Output is correct
11 Correct 40 ms 2820 KB Output is correct
12 Incorrect 138 ms 9264 KB Output isn't correct
13 Correct 69 ms 1820 KB Output is correct
14 Incorrect 111 ms 8508 KB Output isn't correct
15 Incorrect 145 ms 9148 KB Output isn't correct
16 Correct 81 ms 1024 KB Output is correct
17 Correct 41 ms 1016 KB Output is correct
18 Correct 30 ms 1024 KB Output is correct
19 Correct 80 ms 5020 KB Output is correct
20 Correct 42 ms 1024 KB Output is correct