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  1. #include <iostream>
  2. #include <string>
  3.  
  4. using namespace std;
  5.  
  6. bool czy_palindrom(int f)
  7. {
  8.     string xd {to_string(f)};
  9.     int k = xd.size()-1;
  10.     for (int i = 0; i < xd.size()/2; i++,k--)
  11.     {
  12.         if (xd[k] != xd[i])
  13.         {
  14.             return false;
  15.         }
  16.     }
  17.     return true;
  18. }
  19.  
  20. int main()
  21. {
  22.     int ile;
  23.     cin >> ile;
  24.     for (int i = 0; i < ile; i++)
  25.     {
  26.         string godzina;
  27.         cin >> godzina;
  28.         godzina.erase(2,1);
  29.         int palindrom {stoi(godzina)};
  30.         palindrom++;
  31.         for (;;)
  32.         {
  33.             if (czy_palindrom(palindrom))
  34.             {
  35.                 break;
  36.             }
  37.             else
  38.             {
  39.                 palindrom++;
  40.                 string chwilowy;
  41.                 chwilowy = {to_string(palindrom)};
  42.                 if (chwilowy.size() < 2)
  43.                 {
  44.                     chwilowy = "000" + to_string(palindrom);
  45.                 }
  46.                 else if (chwilowy.size() < 3)
  47.                 {
  48.                     chwilowy = "00" + to_string(palindrom);
  49.                 }
  50.                 else if (chwilowy.size() < 4)
  51.                 {
  52.                     chwilowy = '0' + to_string(palindrom);
  53.                 }
  54.                 if ((chwilowy[2]== '6')&&(chwilowy[3]=='0'))
  55.                 {
  56.                     palindrom += 40;
  57.                 }
  58.                 if ((chwilowy[0]== '2')&&(chwilowy[1]=='4'))
  59.                 {
  60.                     palindrom = 0;
  61.                 }
  62.             }
  63.         }
  64.         if (palindrom/100 < 10)
  65.             cout <<'0' <<palindrom/100 <<  ':';
  66.         else
  67.             cout <<palindrom/100 <<  ':';
  68.         if (palindrom%100 < 10)
  69.             cout <<'0' <<palindrom%100<< endl;
  70.         else
  71.             cout <<palindrom%100 << endl;
  72.     }
  73.     return 0;
  74. }
  75.  
Success #stdin #stdout 0s 4180KB
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https://ideone.com/HrV1NK
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
public

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