Add soulution.go for 0006.ZigZag Conversion

Author: Yeqi Tao

solution/0006.ZigZag Conversion/Solution.go

@@ -0,0 +1,20 @@
+func convert(s string, numRows int) string {
+	if numRows == 1 {
+		return s
+	}
+	length := len(s)
+	result := make([]byte, length)
+	step := 2 * numRows - 2
+	count := 0
+	for i := 0; i < numRows; i++ {
+		for j := 0; j + i < length; j += step {
+			result[count] = s[i+j]
+			count++
+			if i != 0 && i != numRows - 1 && j + step - i < length {
+				result[count] = s[j+step-i]
+				count++
+			}
+		}
+	}
+	return string(result)
+}

solution/README.md

@@ -41,6 +41,7 @@
 │   ├── README.md
 │   ├── Solution.cpp
 │   ├── Solution.java
+│   ├── Solution.go
 │   ├── Solution.js
 │   └── Solution.py
 ├── 0007.Reverse Integer