what is almost correct (C Progamming )

Hi,

My teacher told me that we do not need [80] in ---> while

(c1[80]!=c2[80]) {

And she said it has to be [0]
I am not sure if we also need value of 0 in ---> char

c1[80], c2[80]; 
It is regards to my assignment and important of not losing marks on some rubbish mistakes

___________________

#include  

#include  

char c1[80], c2[80]; 

int main() { 

    printf("Please enter card type:\n"); 

    gets(c1);                                                                                                                                        

    gets(c2);  

    while (c1[80]!=c2[80]) { 

       strcpy(c1,c2); 

        gets(c2); 

}

        printf("SNAP"); 

}

This line should be left unchanged as it is allocating memory for the two strings:

char c1[80], c2[80];

It's debatable whether you need as much as 80 characters but, as it's not entirely clear what may be input, I'd leave them as they are for now.

However, your teacher is correct that the while statement should read:

while (c1[0]!=c2[0]) {

The idea is that it is comparing the fist character of each array. If they're the same, then it prints SNAP otherwise it copies the second array to the first and gets another card which it stores in the second array. It keeps on doing this until two successive cards match, the while loop is exited and SNAP is printed.

For this to work properly, the user needs to input something like : 2, 3, 4, 5, 6, 7, 8, 9, t, j, q, k or a for the card.

It won't suffice to enter : two, three, four, five etc. as the first letters of the cards are then ambiguous.