Submission #710615

#	Time	Username	Problem	Language	Result	Execution time	Memory
710615		groshi	Palindromic Partitions (CEOI17_palindromic)	C++17	100 / 100	32 ms	20548 KiB

palindromic

#include<bits/stdc++.h>
#define int long long
using namespace std;
int pierw=31;
int potega[2000000];
int32_t main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int n;
    cin>>n;
    potega[0]=1;
    for(int i=1;i<=1000000;i++)
        potega[i]=potega[i-1]*pierw;
    for(int i=1;i<=n;i++)
    {
        string s;
        cin>>s;
        int l=0,r=s.length()-1;
        int jeden=0,dwa=0;
        int wynik=1;
        int dl=0;
        while(l<r)
        {
            jeden*=pierw;
            jeden+=s[l]-'a';
            dwa+=potega[dl]*(s[r]-'a');
            if(jeden==dwa)
            {
                if(r-1==l)
                    wynik--;
                wynik+=2;
                dl=-1;
                jeden=0,dwa=0;
            }
            l++;
            r--;
            dl++;
        }
        cout<<wynik<<"\n";
    }
    return 0;
}

• Subtask 1: 15 / 15
• Subtask 2: 20 / 20
• Subtask 3: 25 / 25
• Subtask 4: 40 / 40