Could anyone make me go through this code line by line? I am finding this quite complex. Thank you.

Question

main ()
{
int i = 0, ua = 0, ub = 0, uc = 0, fail = 0;
while ( i<=5)
{
switch ( i ++)
{
Case 1:
Case 2: ++ua;
Case 3:
Case 4: ++ub;
Case 5: ++uc;
default: ++fail;
}
}
cout << ua << ub << uc << fail << endl;
return 0;
}

Answer 1

Dipanjan Basu you do not have a break statement after each case so for i value 0 the default case is executed and for i value 1, everything from case 1 is executed till default and for case 2 again everything from there is executed and so on till i = 5.

So all the final updated values of corresponding variables are displayed.

Answer 2

I am not getting how ua = 2 ub = 4 uc = 5 and fail = 6 as the condition when met true is incrementing by 1 so all of the values shall increment by 1 so how the diffrentiation?