Hacktoberfest2021/TimeConversion.cpp at main · recongamer/Hacktoberfest2021 · GitHub

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#include <iostream>

using namespace std;

void print24(string str)
{
    int h1 = (int)str[1] -'0';
    int h2 = (int)str[0] -'0';
    int hh = (h2 * 10 + h1);


    if (str[8] == 'A')
    {
        if (hh == 12)
        {
            cout << "00";
            for (int i=2; i <= 7; i++)
                cout << str[i];
        }
        else
        {
            for (int i=0; i <= 7; i++)
                cout << str[i];
        }
    }

    else
    {
        if (hh == 12)
        {
            cout << "12";
            for (int i=2; i <= 7; i++)
                cout << str[i];
        }
        else
        {
            hh = hh + 12;
            cout << hh;
            for (int i=2; i <= 7; i++)
                cout << str[i];
        }
    }
}


int main()
{

   string str;
   cin >> str;
   print24(str);
   return 0;
}