total = price
total += price
With = the total is overwritten on every pass, so in the end it would only hold the last price.
while (from >= 0) {
from--;
while (from > 0) {
from++;
With >= it would also print 0, and with from++ the counter goes up and the loop never ends.
if (number % 2 == 0)
if (number / 2 == 0)
% gives the remainder of the division; / gives the quotient, which is only 0 for numbers smaller than 2.
if letter in word:
count += 1
count = 1
if letter in vowels:
Each letter has to be looked up in the vowels, not in the word, and the count has to grow by 1 instead of being stuck at 1.
There’s always something extra
Every exercise comes with one to three extra blocks, depending on the difficulty: classic beginner mistakes. Spotting them is what makes you really read the code.
