C program, whats the problem with this? pls check it out..?

#include %26lt;stdio.h%26gt;


main(void)


{


int i, j;


float price[10];





printf(" Please key in an initial price in RM: ");


scanf("%f", %26amp;price[0] );





printf(" \n\t\t\tMyZan Departmental Store\n ");


printf(" \t\t\t ");





for(j=1;j%26lt;=24;j++)


{


printf("-");


}


printf("\n\n");


printf("%30s%25s", "Price Before", "Price After");


printf("\n%28s%28s", "Discount", "20 % Discount");


printf("\n%26s%25s", "(RM)", "(RM)");





printf("\n");


for (i=0; i%26lt;=9; i++)


{


price[i+1] = price[i] *0.8;


printf( "\n%26.2f",price[i] );


printf( "\t%19.2f", price[i+1] );


price[i+1]=price[i]+10;


}





}

C program, whats the problem with this? pls check it out..?
Without knowing exactly what's going wrong, the project description seems to indicate that this line:





price[i+1]=price[i]+10;





should use price[i+1] as its source, rather than price[i].





The loop should also run while i%26lt;9, not %26lt;=.





Hope that helps.
Reply:%26gt; float price[10];


%26gt; for (i=0; i%26lt;=9; i++)


%26gt; price[i+1] = price[i] *0.8;





You can't write to price[10].





I don't fully understand why you're writing the discount price into the next entry in the array at all though, so I don't know how to recommend what to change.





edit: I'd suggest not storing either the "next" value or the discount value in an array. Conceptually much simpler, and you overwrite the % immediately anyway.

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