Thread: need homework help asap with if statement

So i have a homework due in a few hours and i think im screwed

Here is what i want to do i need some help with the syntax

comparing to values
If they are the same then we go to end of program
if they are not the same we continue on

so i wrote

Code:

if (x==y) {return(0)};

Also i tried the jump which i dont think works in C

e.g

Code:

if (x==y){jump end};

end

return(0)



Can someone please give me a hand its my first c aisgnment and our teacher is a loser and gave us way more then we can handle

she has not even taught us how to use if and she expects us to be able to use it

Thanks

ok what if i want it to print something right before it exits

So instead of exit i want it to jump to a location

Because i need it to print the answer to something right before it exits

Basically if two things are equal i want it to display the result of the 2 things and then exit

Is there a jump command of sorts for c?

Originally Posted by stahta01

exit(0) will exit the program and return 0 to the OS.
exit - C++ Reference

Code:

if (x==y) {exit(0)};

Also this did not work
is exit propritary for the IDE you are using because it wont work for me

Originally Posted by automagp68

Basically if two things are equal i want it to display the result of the 2 things and then exit

Code:

if( x == y ) {
    // display x and y
}

Originally Posted by automagp68

Also this did not work
is exit propritary for the IDE you are using because it wont work for me

Nope, not proprietary. It's part of the C standard. Perhaps you aren't including the correct header for it to work.

I suspect "return 0" will work equally well in this case.

Originally Posted by anduril462

Nope, not proprietary. It's part of the C standard. Perhaps you aren't including the correct header for it to work.

hi yes is there a lib i need for it to work?

i am only including stdio.h at the moment

just so you guys know what im trying to do here is the asignment

Im sure you will think this is super lame but this is the first thing ive ever tried in c and im completly stuck


Write a program that asks the user to enter a U.S. dollar amount ant then show how to pay that amount using the smallest number of $20, $10, $5, and $1 bills:
Enter a dollar amount: 93
$20 bills: 4 $10 bills: 1 $ 5bills: 0 $ 1bills: 3
Hint: Divide the amount by 20 to determine the number of $20 bills needed and then reduce the amount by the total value of the $20 bills. Repeat for other bill sizes. Be sure to use integer values throughout, not floating-point numbers.

Originally Posted by oogabooga

You need to #include <stdlib.h> for exit.

dunno why because i do have that included now and compiler still is throwing a fit

Originally Posted by automagp68

Write a program that asks the user to enter a U.S. dollar amount ant then show how to pay that amount using the smallest number of $20, $10, $5, and $1 bills:
Enter a dollar amount: 93
$20 bills: 4 $10 bills: 1 $ 5bills: 0 $ 1bills: 3
Hint: Divide the amount by 20 to determine the number of $20 bills needed and then reduce the amount by the total value of the $20 bills. Repeat for other bill sizes. Be sure to use integer values throughout, not floating-point numbers.

You don't need any if statements, goto or exit for that, just divide by 20, 10, 5 and 1. And present the result of each step.

Originally Posted by oogabooga

There's goto, but it's use often means your program is badly designed.

Here is a very nice candy. But eating it often may make one sick !

(Seriously, I don't one another beginner to suffer like me...when I learnt about goto and held on to it until I joined this board and got educated. (AFAI remember, I once argued that if-goto was easier for me than 'for' loops !) )

yea but how does it know when we have reached the dollar amount of so it stops?

like if the number is not even and we divide by 20

and we got 4.75

we display the 4 but when we go to divide the new result by 10 for the next dollar amount it is only going to divide the total by 10 not the total less what we used for 20