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  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4.  
  5. using namespace std;
  6.  
  7. int main()
  8. {
  9.   string s;
  10.   cin >> s;
  11.  
  12.   for (size_t q=1, n=0, w=~0U; q<s.length(); ++q)
  13.     if (n)
  14.       cout << s[q] << ' ' << s[++w %= n] << endl;
  15. 	else if (equal(s.begin(), s.begin()+q, s.rend()-1-q))
  16. 	  n = q+1 >> 1;
  17.  
  18.   return 0;
  19. }
Success #stdin #stdout 0s 15240KB
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stdin
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PassssaPandsometext
stdout
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a P
n a
d s
s s
o P
m a
e s
t s
e P
x a
t s
https://ideone.com/Q34qbh
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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