Question: 
Write a function to find minimum of three numbers.


Model's Code:
def min_of_three(a, b, c):
    return min(a, b, c)



Sample Correct Code:
def min_of_three(a,b,c): 
      if (a <= b) and (a <= c): 
        smallest = a 
      elif (b <= a) and (b <= c): 
        smallest = b 
      else: 
        smallest = c 
      return smallest 


Asserts:
assert min_of_three(10,20,0)==0
assert min_of_three(19,15,18)==15
assert min_of_three(-10,-20,-30)==-30


Tests:
Test 1 of 3: PASS
Test 2 of 3: PASS
Test 3 of 3: PASS

Test 227 of 974: 167/227 (73.568281938326%): success