oj.uz

Submission #373064

# Submission time Handle Problem Language Result Execution time Memory
373064 2021-03-03T08:41:32 Z Atill83 Lozinke (COCI17_lozinke) C++14
75 / 100
 120 ms 18228 KB 
#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e9+7;
const int MAXN = (int) 3e5+5;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n;
string s[MAXN];
int pw[MAXN];
int hsh[MAXN];


int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);cout.tie(nullptr);

    #ifdef Local
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin);
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout);
    #endif

    cin>>n;
    for(int i = 0; i < n; i++){
        cin>>s[i];
    }
    
    ll ans = 0;

    unordered_map<int, int> mp;

    const int base = 28;

    for(int i = 0; i < n; i++){
        vector<int> vc;
        for(int x = 0; x < s[i].length(); x++){
            int bas = 1;
            int hash = 0;
            for(int y = x; y < s[i].length(); y++){
                hash = (hash + 1LL * bas * (s[i][y] - 'a' + 1) % mod) % mod;
                vc.push_back(hash);
                bas = 1LL * bas * base % mod;
            }
            if(x == 0)
                hsh[i] = hash;
        }
        sort(vc.begin(), vc.end());
        vc.resize(unique(vc.begin(), vc.end()) - vc.begin());
        for(auto u: vc)
            mp[u]++;
    }

    for(int i = 0; i < n; i++){
        ans += mp[hsh[i]] - 1;
    }
    
    cout<<ans<<endl;


    #ifdef Local
        cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

Compilation message

lozinke.cpp: In function 'int main()':
lozinke.cpp:42:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |         for(int x = 0; x < s[i].length(); x++){
      |                        ~~^~~~~~~~~~~~~~~
lozinke.cpp:45:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |             for(int y = x; y < s[i].length(); y++){
      |                            ~~^~~~~~~~~~~~~~~

Subtask #1
75.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9708 KB Output is correct
2 Correct 7 ms 9708 KB Output is correct
3 Correct 7 ms 9708 KB Output is correct
4 Correct 7 ms 9708 KB Output is correct
5 Correct 9 ms 9964 KB Output is correct
6 Correct 10 ms 9964 KB Output is correct
7 Correct 12 ms 10348 KB Output is correct
8 Correct 14 ms 10732 KB Output is correct
9 Correct 25 ms 10732 KB Output is correct
10 Incorrect 48 ms 13456 KB Output isn't correct
11 Correct 37 ms 11640 KB Output is correct
12 Incorrect 120 ms 18228 KB Output isn't correct
13 Correct 60 ms 10732 KB Output is correct
14 Incorrect 112 ms 17460 KB Output isn't correct
15 Incorrect 117 ms 17972 KB Output isn't correct
16 Correct 63 ms 9964 KB Output is correct
17 Correct 34 ms 9836 KB Output is correct
18 Correct 28 ms 9836 KB Output is correct
19 Incorrect 72 ms 13840 KB Output isn't correct
20 Correct 38 ms 9964 KB Output is correct