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  1. #include <bits/stdc++.h>
  2. #define ll long long 
  3. #define m 1000000007
  4. using namespace std;
  5.  
  6. int main() {
  7. 	// your code goes here
  8. 	std::ios::sync_with_stdio(false);
  9. 	int ans,i,n;
  10. 	string s;
  11. 	cin>>s;
  12. 	n=s.length();
  13. 	ans=n;
  14. 	for(i=0;i<n;i++)
  15. 	{
  16. 		int l=i-1,r=i+1,c=0;
  17. 		while(l>=0 && r<n && s[l]==s[r])
  18. 		{c+=1;
  19. 		l--;
  20. 		r++;}
  21. 		ans+=c;
  22. 		//cout<<ans<<endl;
  23. 	}
  24. 	for(i=0;i<n;i++)
  25. 	{
  26. 		int l=i-1,r=i,c=0;
  27. 		while(l>=0 && r<n && s[l]==s[r])
  28. 		{c+=1;
  29. 		l--;
  30. 		r++;}
  31. 		ans+=c;
  32. 		//cout<<ans<<endl;
  33. 	}
  34.  
  35.  
  36. 	cout<<ans;
  37.  
  38.  
  39. 	return 0;
  40. }
Success #stdin #stdout 0s 15224KB
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https://ideone.com/r60aOJ
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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