Chocolate Feast : HackerRank Problem Solution

A Boy has $N money. Price of each chocolate is $C. For every M wrappers the boy gives to shop keeper, he gets one chocolate back. Find the total number of chocolates the boy has ?
Input:# number of test cases
3                
# N, the total money & C, cost of each chocolate & M, For M  wrappers, one chocolate is given back.  
10 2 5  
      
12 4 4

6 2 2

Output:

6

3

5

PHP Implementation:

<?php $_fp = fopen ( " php://stdin "," r " ) ; /* Get the number of test cases from the user */ fscanf ( STDIN, " %d " , $T ) ; /* Do until the number of test cases become "0" */ while ( $T -- ) { /* Get the total money the boy has, cost of each chocolate, number of wrappers for which the boy gets one chocolate on giving back*/ fscanf ( STDIN," %d %d %d ", $N, $C, $Y ) ; /* Calculate the total number of chocolates that the boy can buy from the shop initally */ $X = $N / $C ; /* Initialize the chocolate count variable to zero */ $choc = 0 ; /* For every chocolate he is getting, add one chocolate if number of wrappers equals "Y" */ for ( $i = 1; $i <= $X ; $i ++ ) { $choco ++ ; /* If the number of chocolates equals the number of wrappers, add one more chocolate */ if ( ( $i ) % $Y == 0 ) { $X ++ ; } } /* Print the total number of chocolates the boy finally has */ fprintf (STDOUT, " %d \n ", $choc ) ; } ?>