Submission #128094

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
128094	2019-07-10 12:13:16	faustaadp	Palindromic Partitions (CEOI17_palindromic)	C++17	100 / 100	77 ms	10640 KiB

palindromic

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#include<bits/stdc++.h>
typedef long long ll;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
string s,s1,s2;
ll n,i,has,t;
int main()
{
  ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
  cin>>t;
  while(t--)
  {
    has=0;
    cin>>s;
    ll las1=0,las2=n-1;
    n=s.length();
    ll K1=27,P1=1,mo=1e9+7;
    ll A=0,B=0;
    for(i=0;i<n;i++)
    {
      if(i>=(n-i-1))break;
      A=(A*K1)%mo;
      A=(A+(s[i]-'a'))%mo;
      B=(B+((s[n-i-1]-'a')*P1)%mo)%mo;
      P1=(P1*K1)%mo;
      if(A==B)
      {
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 20 / 20
• Subtask 3: 25 / 25
• Subtask 4: 40 / 40