# CS50x Cash

## From problem set 1

`cd ~/pset1mkdir cashcd cashtouch cash.c`
`open cash.c`
`// Prompt user for a change value   // Make sure it's positive// Round it and store as cents in a variable// Count the least amount of coins needed for the change// Print result`
`#include <stdio.h>#include <math.h>#include <cs50.h>int main(void){ }`
`float getValue(void){    float change;    do    {        change = get_float("Change owed: ");    }    while (change < 0.00);return change;}`
`float getValue(void);int coins(int cents);`
`float owed = getValue();int cents = round(owed * 100);`
`make cash`
`\$ ./cashChange owed: -0.41Change owed: fooChange owed: 0.41`
`int coins(int cents){    int count = 0;        while (cents > 0)    {        if (cents >= 25)        {            cents -= 25;            count++;        }        else if (cents >= 10)        {            cents -= 10;            count++;        }        else if (cents >= 5)        {            cents -= 5;            count++;        }        else        {            cents -= 1;            count++;        }    }    return count;`
`printf("%d\n", coins(cents));`
`~/pset1/cash/ \$ style50 cash.cResults generated by style50 v2.7.4Looks good!~/pset1/cash/ \$ check50 cs50/problems/2020/x/cash...Results for cs50/problems/2020/x/cash generated by check50 v3.1.2:) cash.c exists:) cash.c compiles:) input of 0.41 yields output of 4:) input of 0.01 yields output of 1:) input of 0.15 yields output of 2:) input of 1.6 yields output of 7:) input of 23 yields output of 92:) input of 4.2 yields output of 18:) rejects a negative input like -1:) rejects a non-numeric input of "foo" :) rejects a non-numeric input of ""`