hello!world C program problem

The format of your printf is wrong:printf("\n %.1f",physics,"\t %.1f",a);Needs to beprintf("\n %.1f\t %.1f",physics, a);You only have one format string and then a list of the vriables you are substituting in .

Some suggestions:Use meaningful variable names; a,b,c,d etc are useless and easy to misuse.Use proper English (or even Urdu) in your printed messages. Cryptic 'txtspk' like "u r" makes things more difficult to understand.Indent your code properly so you can easily see the boundaries of...