Merge pull request neetcode-gh#1897 from josuebrunel/feat/0322-coin-c…

…hange.go

Create 0322-coin-change.go

go/0322-coin-change.go

@@ -0,0 +1,26 @@
+func coinChange(coins []int, amount int) int {
+	changes := make([]int, amount+1)
+	for i := range changes {
+		changes[i] = amount + 1
+	}
+	changes[0] = 0
+
+	for i := 1; i < amount+1; i++ {
+		for _, c := range coins {
+			if c <= i {
+				changes[i] = min(changes[i], 1+changes[i-c])
+			}
+		}
+	}
+	if changes[amount] != amount+1 {
+		return changes[amount]
+	}
+	return -1
+}
+
+func min(x, y int) int {
+	if x < y {
+		return x
+	}
+	return y
+}