Create atoi.py

Author: Amogh Singhal

atoi.py

@@ -0,0 +1,19 @@
+# Convert the string "123" into 123, without using the built-api `int()`
+
+# Startegy
+# 1. loop through each digit
+# 2. find the digit in range object of range(10)
+# 3. once the number is found, add it in placeholder
+# 4. Multiply each iteration by 10 (start with 0)
+
+def atoi(inputStr):
+  outputNum = 0
+  for char in inputStr:
+    for i in range(10):
+      if str(i) == char:
+        outputNum = outputNum * 10 + i
+  return outputNum
+
+x = "123"
+y = atoi(x)
+print(y)