Help me ! easy c program

If you feel like being an idiot and copying and pasting your code with some changes about 10 times, sure.

C is not a language to mess around with. Learn how it works before you start doing things you have no idea what you're doing.
Get a book. Read a tutorial. Anything. Just learn loops & whatever else you need to know. It's not difficult.

Quote:

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can it just use if else switch goto ?

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goto should never be needed. goto's will make the code very confusing and ugly.

Careful about gotos, there. Gotos can indeed by a good thing in C, if you know how to use them correctly.
They do have uses, such as breaking out of multiple loops or providing a common exit path from a function.

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Originally Posted by Elysia

Careful about gotos, there. Gotos can indeed by a good thing in C, if you know how to use them correctly.
They do have uses, such as breaking out of multiple loops or providing a common exit path from a function.

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True. I should rephrase this. goto are not needed in this situation. goto's will make the code very confusing and ugly.
Really useful in this kind of situation though:

Code:

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while(this)
    while(that)
        for ...
            if(catastrophe)
                goto error;

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but this is kinda stupid:

Code:

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loop:
if(foo < 100) {
    foo++;
    goto loop;
}

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i will learn more.^^

What kempelen showed you was a basic for loop and a simple one-dimensional array. A problem, well any problem in programming usually has more than solution to it.

Considering you are fairly new to C, I would use the loop and forget the array ( just use a simple counter to increment each letter grade total ). When you have learnt more about program flow and arrays you will understand more about it.