⚠️ The world is in quarantine! There is a new pandemia that struggles mankind. Each continent is isolated from each other but infected people have spread before the warning. ⚠️
🗺️ You would be given a map of the world in a type of string:
    string s = "01000000X000X011X0X"
    '0' : uninfected
    '1' : infected
    'X' : ocean
⚫ The virus can't spread in the other side of the ocean.
⚫ If one person is infected every person in this continent gets infected too.
⚫ Your task is to find the percentage of human population that got infected in the end.
☑️ Return the percentage % of the total population that got infected.
❗❗ The first and the last continent are not connected!
💡 Example:
     start: map1 = "01000000X000X011X0X"
     end:   map1 = "11111111X000X111X0X"
     total = 15
     infected = 11
     percentage = 100*11/15 = 73.33333333333333
➕ For maps without oceans "X" the whole world is connected.
➕ For maps without "0" and "1" return 0 as there is no population.
def infected(s):
    inf=0
    saf=0
    for c in s.split('X') :
        if '1' in c :
            inf += len(c)
        else :
            saf += len(c)
        
    return 0 if inf+saf==0 else inf/(inf+saf)*100
def infected(s):
    inf=0
    saf=0
    for c in s.split('X') :
        if '1' in c :
            inf += len(c)
        else :
            saf += len(c)
        
    return 0 if inf+saf==0 else inf/(inf+saf)*100