Submission #165412

#	Time	Username	Problem	Language	Result	Execution time	Memory
165412		Atill83	Savez (COCI15_savez)	C++14	96 / 120	241 ms	16744 KiB

savez

#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) 2e6+5;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n;
string s;

map<ll, ll> mp;
ll pw[MAXN];



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

    #ifdef Local
        freopen("../IO/int.txt","r",stdin);
        freopen("../IO/out.txt","w",stdout);
    #endif

    cin>>n;
    pw[0] = 1;
    for(int i = 1; i < MAXN; i++){
        pw[i] = pw[i - 1]*37%mod;
    }
    ll ans = 0;
    for(int i = 0; i < n; i++){
        cin>>s;
        ll hash = 0;
        for(int j = 0; j < (int)s.length(); j++){
            hash += (int)(s[j] - 'A' + 1)*pw[j];
            hash %= mod;
        }
        ll cur = mp[hash];
        //cout<<i<<" "<<hash<<endl;
        ll curH = 0;
        for(int l = 0; l < (int) s.length() - 1; l++){
            curH += pw[l]*((int)(s[l] - 'A' + 1));
            curH %= mod;
            //cout<<l<<" ";
            //cout<<curH<<endl;
            //cout<<mp[curH]<<endl;
            mp[hash] = max(mp[hash], mp[curH] + 1);
        }
        mp[hash] = max(mp[hash], cur + 1LL);
        //cout<<mp[hash]<<endl;
        ans = max(ans, mp[hash]);
    }
    cout<<ans<<endl;

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

• Subtask 1: 0 / 12
• Subtask 2: 0 / 12
• Subtask 3: 12 / 12
• Subtask 4: 12 / 12
• Subtask 5: 12 / 12
• Subtask 6: 12 / 12
• Subtask 7: 12 / 12
• Subtask 8: 12 / 12
• Subtask 9: 12 / 12
• Subtask 10: 12 / 12