Ilgrim
diff --git a/‎dynamic_programming/coin_change.py‎
Lines changed: 10 additions & 7 deletions b/‎dynamic_programming/coin_change.py‎
Lines changed: 10 additions & 7 deletions
@@ -7,20 +7,23 @@
 """
 
 
-def dp_count(S, m, n):
+def dp_count(S, n):
     """
-    >>> dp_count([1, 2, 3], 3, 4)
+    >>> dp_count([1, 2, 3], 4)
     4
-    >>> dp_count([1, 2, 3], 3, 7)
+    >>> dp_count([1, 2, 3], 7)
     8
-    >>> dp_count([2, 5, 3, 6], 4, 10)
+    >>> dp_count([2, 5, 3, 6], 10)
     5
-    >>> dp_count([10], 1, 99)
+    >>> dp_count([10], 99)
     0
-    >>> dp_count([4, 5, 6], 3, 0)
+    >>> dp_count([4, 5, 6], 0)
     1
+    >>> dp_count([1, 2, 3], -5)
+    0
     """
-
+    if n < 0:
+        return 0
     # table[i] represents the number of ways to get to amount i
     table = [0] * (n + 1)
Original file line number	Diff line number	Diff line change
`@@ -7,20 +7,23 @@`
`7`	`7`	`"""`
`8`	`8`
`9`	`9`
`10`		`-def dp_count(S, m, n):`
	`10`	`+def dp_count(S, n):`
`11`	`11`	`"""`
`12`		`- >>> dp_count([1, 2, 3], 3, 4)`
	`12`	`+ >>> dp_count([1, 2, 3], 4)`
`13`	`13`	`4`
`14`		`- >>> dp_count([1, 2, 3], 3, 7)`
	`14`	`+ >>> dp_count([1, 2, 3], 7)`
`15`	`15`	`8`
`16`		`- >>> dp_count([2, 5, 3, 6], 4, 10)`
	`16`	`+ >>> dp_count([2, 5, 3, 6], 10)`
`17`	`17`	`5`
`18`		`- >>> dp_count([10], 1, 99)`
	`18`	`+ >>> dp_count([10], 99)`
`19`	`19`	`0`
`20`		`- >>> dp_count([4, 5, 6], 3, 0)`
	`20`	`+ >>> dp_count([4, 5, 6], 0)`
`21`	`21`	`1`
	`22`	`+ >>> dp_count([1, 2, 3], -5)`
	`23`	`+ 0`
`22`	`24`	`"""`
`23`		`-`
	`25`	`+ if n < 0:`
	`26`	`+ return 0`
`24`	`27`	`# table[i] represents the number of ways to get to amount i`
`25`	`28`	`table = [0] * (n + 1)`
`26`	`29`