참일때 if 조건문 else 거짓일때
ex)
# 올바른 예
f = food[idx]-1 if food[idx] % 2 == 0 else food[idx]
# 잘못된 예
f = food[idx]-1 if food[idx] % 2 == 0 else f = food[idx]
# 올바른 예
min_value = val if val < min_value else min_value
# 잘못된 예
min_value = val if val < min_value else min_value = min_value