From 6069fc4d655d79ebefda31dc327534c36110ab5a Mon Sep 17 00:00:00 2001
From: ayushijain22 <48030391+ayushijain22@users.noreply.github.com>
Date: Tue, 6 Oct 2020 08:45:07 +0530
Subject: [PATCH] Create String to integer(atoi)

---
 leetcode/String to integer(atoi) | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 leetcode/String to integer(atoi)

diff --git a/leetcode/String to integer(atoi) b/leetcode/String to integer(atoi)
new file mode 100644
index 00000000..b6f6f8f0
--- /dev/null
+++ b/leetcode/String to integer(atoi)	
@@ -0,0 +1,27 @@
+class Solve {
+    public int myAtoi(String str) {
+        int i = 0;
+        int sign = 1;
+        int result = 0;
+        if (str.length() == 0) return 0;
+
+        
+        while (i < str.length() && str.charAt(i) == ' ')
+            i++;
+
+        
+        if (i < str.length() && (str.charAt(i) == '+' || str.charAt(i) == '-'))
+            sign = (str.charAt(i++) == '-') ? -1 : 1;
+
+        
+        while (i < str.length() && str.charAt(i) >= '0' && str.charAt(i) <= '9') {
+            if (result > Integer.MAX_VALUE / 10 ||
+                    (result == Integer.MAX_VALUE / 10 && str.charAt(i) - '0' > Integer.MAX_VALUE % 10)) {
+                return (sign == 1) ? Integer.MAX_VALUE : Integer.MIN_VALUE;
+            }
+            result = result * 10 + (str.charAt(i++) - '0');
+        }
+        return result * sign;
+
+    }
+}