1 files changed, 29 insertions, 0 deletions
diff --git a/challenge-236/eric-cheung/python/ch-1.py b/challenge-236/eric-cheung/python/ch-1.py
new file mode 100755
index 0000000000..87c8692ed0
--- /dev/null
+++ b/challenge-236/eric-cheung/python/ch-1.py
@@ -0,0 +1,29 @@
+
+## arrInputBill = [5, 5, 5, 10, 20]  ## Example 1
+## arrInputBill = [5, 5, 10, 10, 20]  ## Example 2
+arrInputBill = [5, 5, 5, 20]  ## Example 3
+
+arrChange = [0, 0, 0]
+bSucceed = True
+
+for nIndx in range(len(arrInputBill)):    
+    if arrInputBill[nIndx] == 5:
+        arrChange[0] = arrChange[0] + 1
+    elif arrInputBill[nIndx] == 10:
+        if arrChange[0] < 1:
+            bSucceed = False
+            break
+        arrChange[0] = arrChange[0] - 1
+        arrChange[1] = arrChange[1] + 1
+    elif arrInputBill[nIndx] == 20:
+        if arrChange[0] < 3 and (arrChange[0] < 1 or arrChange[1] < 1):
+            bSucceed = False
+            break
+        arrChange[2] = arrChange[2] + 1
+        if arrChange[1] > 0:
+            arrChange[1] = arrChange[1] - 1
+            arrChange[0] = arrChange[0] - 1
+        else:
+            arrChange[0] = arrChange[0] - 3
+
+print (bSucceed)