Submission #1028101

#	Time	Username	Problem	Language	Result	Execution time	Memory
1028101		earlyamazon	Savez (COCI15_savez)	C++14	120 / 120	64 ms	17916 KiB

savez

#include <bits/stdc++.h>
using namespace std;

#define int long long

const int mn = 2e6+7;
const int mod1 = 1e9+7;
const int mod2 = 1e9+9;
const int p1 = 269;
const int p2 = 271;
int32_t n,wyn;
map<int32_t, int32_t> dp;
int pot[mn];

int32_t main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie();
    cin>>n;
    pot[0] = 1;
    for (int i = 1; i < mn; i++){
        pot[i] = pot[i-1]*p1%mod1;
    }
    string s;
    vector<int> hpref;
    for (int i = 0; i < n; i++){
        hpref.clear();
        cin>>s;
        hpref.resize(s.size()+1);
        hpref[0] = 0;
        for (int j = 1; j <= (int)s.size(); j++){
            hpref[j] = (hpref[j-1]*p1+s[j-1])%mod1;
        }
        int32_t mx = 0;
        for (int j = 1; j <= (int)s.size(); j++){
            int h = hpref[j];
            if (dp.count(h)){
                if (h == (hpref[s.size()]-((hpref[s.size()-j]*pot[j])%mod1)+mod1)%mod1){
                    mx = max(mx, dp[h]);
                }
            }
        }
        mx++;
        wyn = max(wyn, mx);
        dp[hpref.back()] = mx;
        // cout<<hpref[i].size()<<" "<<hpref[i].back().first<<" "<<hpref[i].back().second<<" "<<mx<<"\n";
    }
    cout<<wyn<<"\n";
}

• Subtask 1: 12 / 12
• Subtask 2: 12 / 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