Merge pull request #24 from viniciusfk9/issue_8-solution

Solution for issue #16

wizard_apprentice/power-hungry_viniciusfk9.py

@@ -0,0 +1,46 @@
+def answer(l):
+    # Only one element
+    if(len(l)==1):
+        return l[0]
+
+    zeros = 0 # Number of zeros
+    neg = 0 # Number of negative numbers
+    max_neg = -9999999 # Max negative number
+    prod = 1 # Max product
+
+    for i in l:
+        if(i == 0):
+            zeros += 1
+        else:
+            if(i < 0):
+                neg += 1
+                max_neg = max(i, max_neg)
+
+            prod *= i
+
+    # If all numbers are zeros, so return 0
+    if(zeros == len(l)):
+        return 0
+    elif(neg%2 != 0): # Odd number of negative numbers
+        # Only one negative number and the remainder are zeros
+        if(zeros == len(l) - 1 and neg == 1):
+            return 0
+
+        prod = int(prod/max_neg) # Maximum product 
+
+    return str(prod)
+
+if __name__ == "__main__":
+    # Tests cases
+    tests = [
+        [0, -4, -4],
+        [0, -1, 0],
+        [0],
+        [0, -5],
+        [2, 2, 0, 2,0],
+        [2, -3, 1, 0, -5],
+        [-2, -3, 4, -5],
+    ]
+
+    for t in tests: 
+        print(answer(t))