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Submission #966596

# Submission time Handle Problem Language Result Execution time Memory
966596 2024-04-20T06:16:33 Z 12345678 Lozinke (COCI17_lozinke) C++17
90 / 100
 152 ms 3804 KB 
#include <bits/stdc++.h>

using namespace std;

const int nx=2e4+5, mod=1e9+7;

#define ll long long

ll n, c[nx][12], sz[nx], res, p[nx], vl[nx];
string s;
map<ll, ll> mp;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    p[0]=1;
    for (int i=1; i<=12; i++) p[i]=(p[i-1]*30)%mod;
    cin>>n;
    for (int i=1; i<=n; i++)
    {
        cin>>s;
        sz[i]=s.size();
        for (int j=1; j<=sz[i]; j++) c[i][j]=s[j-1]-'a'+1;
    }
    for (int i=1; i<=n; i++)
    {
        set<ll> s;
        for (int j=1; j<=sz[i]; j++)
        {
            ll tmp=0;
            for (int k=j; k<=sz[i]; k++)
            {
                tmp=(tmp+c[i][k]*p[k-j])%mod;
                s.insert(tmp);
                if (j==1&&k==sz[i]) vl[i]=tmp;
            }
        }
        for (auto x:s) if (mp.find(x)!=mp.end()) res+=mp[x];
        mp[vl[i]]++;
    }
    mp.clear();
    for (int i=n; i>=1; i--)
    {
        set<ll> s;
        for (int j=1; j<=sz[i]; j++)
        {
            ll tmp=0;
            for (int k=j; k<=sz[i]; k++)
            {
                tmp=(tmp+c[i][k]*p[k-j])%mod;
                s.insert(tmp);
            }
        }
        for (auto x:s) if (mp.find(x)!=mp.end()) res+=mp[x];
        mp[vl[i]]++;
    }
    cout<<res;
}

Subtask #1
90.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 6 ms 2396 KB Output is correct
6 Correct 9 ms 2396 KB Output is correct
7 Correct 12 ms 2520 KB Output is correct
8 Correct 12 ms 2396 KB Output is correct
9 Correct 55 ms 2896 KB Output is correct
10 Correct 66 ms 2988 KB Output is correct
11 Correct 88 ms 3200 KB Output is correct
12 Incorrect 126 ms 3244 KB Output isn't correct
13 Correct 138 ms 3408 KB Output is correct
14 Correct 152 ms 3804 KB Output is correct
15 Incorrect 148 ms 3700 KB Output isn't correct
16 Correct 125 ms 2652 KB Output is correct
17 Correct 30 ms 2852 KB Output is correct
18 Correct 23 ms 2648 KB Output is correct
19 Correct 138 ms 3512 KB Output is correct
20 Correct 97 ms 2888 KB Output is correct