CS50 - PSET1

Cash.c

#include <stdio.h>
#include <cs50.h>
#include <math.h>

int main(void)
{
    float co; //co is a float
    
    do 
    {
        co = get_float("change owed?\n");
    }
    while (co < 0); // ask user for change owed and keep asking if co is less than 0
    
    int cents = round(co * 100); //multiply user entry by a 100 and, rounds to get variable cents
    int quarters = cents / 25; // define quarters, dimes, nickels, pennies
    int dimes = (cents - (quarters * 25)) / 10;
    int nickels = (cents - (quarters * 25 + dimes * 10)) / 5;
    int pennies = cents - (quarters * 25 + dimes * 10 + nickels * 5);
    
    printf("%i\n", quarters + dimes + nickels + pennies);
}

Hello.c

#include <stdio.h>
#include <cs50.h> 

int main(void) // when the green flag is clicked

{
    string name = get_string("what's is your name?\n"); // ask user what is their name? String variable
    printf("Hello, %s\n", name); // print hello, name
}

Mario.c

#include <stdio.h>
#include <cs50.h>

int main(void) //when the green flag if clicked
{
    int h;  //height 
    do
    { 
        h = get_int("Pyramid height?\n"); //ask for pyramid height once, and keep doing if the number is less than 0 or higher than 8
    }
    while (h < 1 || h > 8);
    
    for (int r = 0; r < h; r++) //run a loop where r is the number of rows, increase by 1. Condition to run, rows are less than height 
    {
        for (int ls = h - (r + 1); ls > 0; ls--) // run a loop for left spaces where its inversly related to the number of rows
        { 
            printf(" ");
        }
        for (int hashtag = 0; hashtag < r + 1; hashtag++) //run a loop where the left hash tag is printed increasing by 1
        {
            printf("#");
        }
printf("\n");
    }
}