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  1. #include <iostream>
  2. void addHour(char[]);
  3. bool isTheSame(char[]);
  4. int main()
  5. {
  6.     int amount;
  7.     std::cin>>amount;
  8.     while(amount--)
  9.     {
  10.         char hour[6];
  11.         hour[5]=0;
  12.         for(int i=0;i<5;i++)std::cin>>hour[i];
  13.         do
  14.         {
  15.             addHour(hour);
  16.         }while(isTheSame(hour)==false);
  17.         std::cout<<hour<<std::endl;
  18.     }
  19.     return 0;
  20. }
  21.  
  22. void addHour(char hour[])
  23. {
  24.     if(hour[4]%48<9)hour[4]=(int)hour[4]+1;
  25.     else if(hour[3]%48<5){hour[4]='0';hour[3]=(int)hour[3]+1;}
  26.     else if((hour[0]=='2' && hour[1]%48<3) || (hour[0]=='1' && hour[1]%48<9) ){hour[4]=hour[3]='0';hour[1]=(int)hour[1]+1;}
  27.     else if(hour[0]%48<2){hour[4]=hour[3]=hour[1]='0';hour[0]=(int)hour[0]+1;}
  28.     else for(int i=0;i<5;i++)i==2 ? hour[i]=':' : hour[i]='0';
  29. }
  30.  
  31. bool isTheSame(char hour[])
  32. {
  33.     std::string tag1="",tag2="";
  34.     for(int i=0;i<5;++i)tag1+=hour[i];
  35.     for(unsigned int i=0;i<tag1.length();){if(tag1[i]=='0' || (tag1[i]==':' && i==0))tag1.erase(i,i+1);else ++i;}
  36.     for(int i=tag1.length()-1;i>=0;--i)tag2+=tag1[i];
  37.     if(tag1!=tag2)return false;
  38.     return true;
  39. }
  40.  
Success #stdin #stdout 0s 16064KB
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stdin
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stdout
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https://ideone.com/uaLBJx
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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