Create 0303-range-sum-query-immutable.go and a small update on readme

README.md

@@ -48,7 +48,6 @@ If you would like to have collaborator permissions on the repo to merge your own
 <sub>[0448 - Find All Numbers Disappeared In An Array](https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array/)</sub> | <sub><div align='center'>[✔️](c%2F0448-Find-All-Numbers-Disappeared-in-an-Array.c)</div></sub> | <sub><div align='center'>[✔️](cpp%2F0448-find-all-numbers-disappeared-in-an-array.cpp)</div></sub> | <sub><div align='center'>[✔️](csharp%2F0448-find-all-numbers-disappeared-in-an-array.cs)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](go%2F0448-find-all-numbers-disappeared-in-an-array.go)</div></sub> | <sub><div align='center'>[✔️](java%2F0448-find-all-numbers-disappeared-in-an-array.java)</div></sub> | <sub><div align='center'>[✔️](javascript%2F0448-find-all-numbers-disappeared-in-an-array.js)</div></sub> | <sub><div align='center'>[✔️](kotlin%2F0448-find-all-numbers-disappeared-in-an-array.kt)</div></sub> | <sub><div align='center'>[✔️](python%2F0448-find-all-numbers-disappeared-in-an-array.py)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](rust%2F0448-find-all-numbers-disappeared-in-an-array.rs)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](typescript%2F0448-find-all-numbers-disappeared-in-an-array.ts)</div></sub>
 <sub>[1189 - Maximum Number of Balloons](https://leetcode.com/problems/maximum-number-of-balloons/)</sub> | <sub><div align='center'>[✔️](c%2F1189-Maximum-Number-of-Balloons.c)</div></sub> | <sub><div align='center'>[✔️](cpp%2F1189-maximum-number-of-balloons.cpp)</div></sub> | <sub><div align='center'>[✔️](csharp%2F1189-maximum-number-of-balloons.cs)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](go%2F1189-maximum-number-of-balloons.go)</div></sub> | <sub><div align='center'>[✔️](java%2F1189-maximum-number-of-balloons.java)</div></sub> | <sub><div align='center'>[✔️](javascript%2F1189-maximum-number-of-balloons.js)</div></sub> | <sub><div align='center'>[✔️](kotlin%2F1189-maximum-number-of-balloons.kt)</div></sub> | <sub><div align='center'>[✔️](python%2F1189-Maximum-Number-of-Balloons.py)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](rust%2F1189-maximum-number-of-balloons.rs)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](typescript%2F1189-maximum-number-of-balloons.ts)</div></sub>
 <sub>[0290 - Word Pattern](https://leetcode.com/problems/word-pattern/)</sub> | <sub><div align='center'>[✔️](c%2F0290-Word-Pattern.c)</div></sub> | <sub><div align='center'>[✔️](cpp%2F0290-word-pattern.cpp)</div></sub> | <sub><div align='center'>[✔️](csharp%2F0290-word-pattern.cs)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](go%2F0290-word-pattern.go)</div></sub> | <sub><div align='center'>[✔️](java%2F0290-word-pattern.java)</div></sub> | <sub><div align='center'>[✔️](javascript%2F0290-word-pattern.js)</div></sub> | <sub><div align='center'>[✔️](kotlin%2F0290-word-pattern.kt)</div></sub> | <sub><div align='center'>[✔️](python%2F0290-word-pattern.py)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](rust%2F0290-word-pattern.rs)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](typescript%2F0290-word-pattern.ts)</div></sub>
-<sub>[0706 - Design HashMap](https://leetcode.com/problems/design-hashmap/)</sub> | <sub><div align='center'>[✔️](c%2F0706-design-hashmap.c)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](kotlin%2F0706-design-hashmap.kt)</div></sub> | <sub><div align='center'>[✔️](python%2F0706-design-hashmap.py)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub>
 <sub>[0347 - Top K Frequent Elements](https://leetcode.com/problems/top-k-frequent-elements/)</sub> | <sub><div align='center'>[✔️](c%2F0347-top-k-frequent-elements.c)</div></sub> | <sub><div align='center'>[✔️](cpp%2F0347-top-k-frequent-elements.cpp)</div></sub> | <sub><div align='center'>[✔️](csharp%2F0347-top-k-frequent-elements.cs)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](go%2F0347-top-k-frequent-elements.go)</div></sub> | <sub><div align='center'>[✔️](java%2F0347-top-k-frequent-elements.java)</div></sub> | <sub><div align='center'>[✔️](javascript%2F0347-top-k-frequent-elements.js)</div></sub> | <sub><div align='center'>[✔️](kotlin%2F0347-top-k-frequent-elements.kt)</div></sub> | <sub><div align='center'>[✔️](python%2F0347-top-k-frequent-elements.py)</div></sub> | <sub><div align='center'>[✔️](ruby%2F0347-top-k-frequent-elements.rb)</div></sub> | <sub><div align='center'>[✔️](rust%2F0347-top-k-frequent-elements.rs)</div></sub> | <sub><div align='center'>[✔️](scala%2F0347-top-k-frequent-elements.scala)</div></sub> | <sub><div align='center'>[✔️](swift%2F0347-top-k-frequent-elements.swift)</div></sub> | <sub><div align='center'>[✔️](typescript%2F0347-top-k-frequent-elements.ts)</div></sub>
 <sub>[0706 - Design Hashmap](https://leetcode.com/problems/design-hashmap/)</sub> | <sub><div align='center'>[✔️](c%2F0706-design-hashmap.c)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](kotlin%2F0706-design-hashmap.kt)</div></sub> | <sub><div align='center'>[✔️](python%2F0706-design-hashmap.py)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>❌</div></sub>
 <sub>[0238 - Product of Array Except Self](https://leetcode.com/problems/product-of-array-except-self/)</sub> | <sub><div align='center'>[✔️](c%2F0238-product-of-array-except-self.c)</div></sub> | <sub><div align='center'>[✔️](cpp%2F0238-product-of-array-except-self.cpp)</div></sub> | <sub><div align='center'>[✔️](csharp%2F0238-product-of-array-except-self.cs)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](go%2F0238-product-of-array-except-self.go)</div></sub> | <sub><div align='center'>[✔️](java%2F0238-product-of-array-except-self.java)</div></sub> | <sub><div align='center'>[✔️](javascript%2F0238-product-of-array-except-self.js)</div></sub> | <sub><div align='center'>[✔️](kotlin%2F0238-product-of-array-except-self.kt)</div></sub> | <sub><div align='center'>[✔️](python%2F0238-product-of-array-except-self.py)</div></sub> | <sub><div align='center'>[✔️](ruby%2F0238-product-of-array-except-self.rb)</div></sub> | <sub><div align='center'>[✔️](rust%2F0238-product-of-array-except-self.rs)</div></sub> | <sub><div align='center'>❌</div></sub> | <sub><div align='center'>[✔️](swift%2F0238-product-of-array-except-self.swift)</div></sub> | <sub><div align='center'>[✔️](typescript%2F0238-product-of-array-except-self.ts)</div></sub>

go/0303-range-sum-query-immutable.go

@@ -0,0 +1,23 @@
+type NumArray struct {
+	Sums []int
+}
+
+func Constructor(nums []int) NumArray {
+	cur, numArray := 0, NumArray{}
+	for _, val := range nums {
+		cur += val
+		numArray.Sums = append(numArray.Sums, cur)
+	}
+	return numArray
+}
+
+func (this *NumArray) SumRange(left int, right int) int {
+	leftSum := 0
+	if left > 0 {
+		leftSum = this.Sums[left-1]
+	}
+
+	rightSum := this.Sums[right]
+
+	return rightSum - leftSum
+}