diff --git a/26/01/1895.cpp b/26/01/1895.cpp
new file mode 100644
index 0000000..8ca85e1
--- /dev/null
+++ b/26/01/1895.cpp
@@ -0,0 +1,15 @@
+#include <vector>
+
+class Solution {
+public:
+    int largestMagicSquare(std::vector<std::vector<int>>& grid) {
+        int m = grid.size();
+        int n = grid[0].size();
+        std::vector<std::vector<int>> preM(m,std::vector<int>(n,0)),preN(m,std::vector<int>(n,0));
+        for (int i = 0; i < m; i++) {
+            for(int j = 0;j < n;j++){
+                preM[m][n] += grid[m][n];
+            }
+        }
+    }
+};
\ No newline at end of file
diff --git a/26/01/3315.cpp b/26/01/3315.cpp
new file mode 100644
index 0000000..6284041
--- /dev/null
+++ b/26/01/3315.cpp
@@ -0,0 +1,22 @@
+#include <vector>
+
+class Solution {
+public:
+    std::vector<int> minBitwiseArray(std::vector<int>& nums) {
+        std::vector<int> ans;
+        for(auto num:nums){
+            if (num == 2) {
+                ans.push_back(-1);
+                continue;
+            }
+            int temp = num;
+            int t=0;
+            while (temp & 1) {
+                t++;
+                temp >>= 1;
+            }
+            ans.push_back(num ^ (1 << (t-1)));
+        }
+        return ans;
+    }
+};
\ No newline at end of file
diff --git a/26/01/3507.cpp b/26/01/3507.cpp
new file mode 100644
index 0000000..096ed0c
--- /dev/null
+++ b/26/01/3507.cpp
@@ -0,0 +1,33 @@
+#include <climits>
+#include <vector>
+
+class Solution {
+public:
+    bool isIncrease(std::vector<int>& nums){
+        for (int i = 1; i<nums.size(); ++i) {
+            if (nums[i] < nums[i-1]) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    int minimumPairRemoval(std::vector<int>& nums) {
+        int ans = 0;
+        while (!isIncrease(nums)) {
+            int index = 0;
+            int minX = INT_MAX;
+            for (int i = 0; i< nums.size()-1; i++) {
+                int temp = nums[i]+nums[i+1];
+                if (minX > temp) {
+                    minX = temp;
+                    index = i;
+                }
+            }
+            nums.erase(nums.begin()+index+1);
+            nums[index] = minX;
+            ans++;
+        }
+        return ans;
+    }
+};
\ No newline at end of file
diff --git a/26/01/comp/18q1.cpp b/26/01/comp/18q1.cpp
new file mode 100644
index 0000000..edb2727
--- /dev/null
+++ b/26/01/comp/18q1.cpp
@@ -0,0 +1,23 @@
+#include <string>
+
+class Solution {
+public:
+    int vowelConsonantScore(std::string s) {
+        int v =0,c=0;
+        std::string col = "aeiou";
+        for (auto i : s) {
+            if (i > 122 || i < 97) {
+                continue;
+            }
+            if (col.find(i) != std::string::npos) {
+                v++;
+            }else {
+                c++;
+            }
+        }
+        if (c==0) {
+            return 0;
+        }
+        return v/c;
+    }
+};
\ No newline at end of file
diff --git a/26/01/go/1200.go b/26/01/go/1200.go
new file mode 100644
index 0000000..d72e952
--- /dev/null
+++ b/26/01/go/1200.go
@@ -0,0 +1,25 @@
+package A
+
+import "sort"
+
+func minimumAbsDifference(arr []int) [][]int {
+	sort.Slice(arr, func(i, j int) bool {
+		return arr[i] < arr[j]
+	})
+	ans := [][]int{}
+	n := len(arr)
+	minDiff := arr[1] - arr[0]
+	for i := 1; i < n; i++ {
+		temp := arr[i] - arr[i-1]
+		if minDiff > temp {
+			minDiff = temp
+		}
+	}
+	for i := 1; i < n; i++ {
+		temp := arr[i] - arr[i-1]
+		if temp == minDiff {
+			ans = append(ans, []int{arr[i-1], arr[i]})
+		}
+	}
+	return ans
+}
diff --git a/26/01/go/1984.go b/26/01/go/1984.go
new file mode 100644
index 0000000..ccc2512
--- /dev/null
+++ b/26/01/go/1984.go
@@ -0,0 +1,21 @@
+package A
+
+import (
+	"sort"
+)
+
+func minimumDifference(nums []int, k int) int {
+	if k == 1 {
+		return 0
+	}
+	n := len(nums)
+	sort.Ints(nums)
+	ans := nums[n-1] - nums[0]
+	for i := 0; i+k-1 < n; i++ {
+		temp := nums[i+k-1] - nums[i]
+		if ans > temp {
+			ans = temp
+		}
+	}
+	return ans
+}
diff --git a/26/01/go/3315.go b/26/01/go/3315.go
new file mode 100644
index 0000000..fd2352c
--- /dev/null
+++ b/26/01/go/3315.go
@@ -0,0 +1,19 @@
+package A
+
+func minBitwiseArray(nums []int) []int {
+	ans := make([]int, 0, len(nums))
+	for _, num := range nums {
+		if num == 2 {
+			ans = append(ans, -1)
+			continue
+		}
+		temp := num
+		t := 0
+		for temp&1 == 1 {
+			t++
+			temp >>= 1
+		}
+		ans = append(ans, num^(1<<(t-1)))
+	}
+	return ans
+}
diff --git a/26/01/go/3507.go b/26/01/go/3507.go
new file mode 100644
index 0000000..2fb000f
--- /dev/null
+++ b/26/01/go/3507.go
@@ -0,0 +1,38 @@
+package A
+
+import "math"
+
+func isIncrease(nums []int) bool {
+	for i := range nums {
+		if i == len(nums)-1 {
+			break
+		}
+		if nums[i] > nums[i+1] {
+			return false
+		}
+	}
+	return true
+}
+
+func minimumPairRemoval(nums []int) int {
+	ans := 0
+	index := 0
+	temp := 0
+	for !isIncrease(nums) {
+		minX := math.MaxInt
+		for i := range nums {
+			if i == len(nums)-1 {
+				break
+			}
+			temp = nums[i] + nums[i+1]
+			if minX > temp {
+				minX = temp
+				index = i
+			}
+		}
+		nums[index] = minX
+		nums = append(nums[:index+1], nums[index+2:]...)
+		ans++
+	}
+	return ans
+}
diff --git a/26/01/go/3650.go b/26/01/go/3650.go
new file mode 100644
index 0000000..bb548ea
--- /dev/null
+++ b/26/01/go/3650.go
@@ -0,0 +1,11 @@
+package A
+
+func minCost(n int, edges [][]int) int {
+	edgeM := make([][]int, n)
+	for i := 0; i < n; i++ {
+		edgeM[i] = make([]int, n)
+	}
+	for _, e := range edges {
+		edgeM[e[0]][e[1]] = e[2]
+	}
+}
diff --git a/26/02/1680.go b/26/02/1680.go
new file mode 100644
index 0000000..9d398fb
--- /dev/null
+++ b/26/02/1680.go
@@ -0,0 +1,13 @@
+package A
+
+import "math/bits"
+
+func concatenatedBinary(n int) int {
+	var res int64 = 0
+	const mod = 1e9 + 7
+	for i := 0; i < n; i++ {
+		b := bits.Len32(uint32(i + 1))
+		res = ((res << b) + int64(i+1)) % mod
+	}
+	return int(res)
+}
diff --git a/26/02/190.go b/26/02/190.go
new file mode 100644
index 0000000..9193c4a
--- /dev/null
+++ b/26/02/190.go
@@ -0,0 +1,16 @@
+package A
+
+import "math/bits"
+
+func reverseBits(n int) int {
+	res := 0
+	for i := 0; i < 32; i++ {
+		res = (res << 1) | (n & 1)
+		n >>= 1
+	}
+	return res
+}
+
+func reverseBits2(n int) int {
+	return int(bits.Reverse32((uint32(n))))
+}
diff --git a/26/02/3379.go b/26/02/3379.go
new file mode 100644
index 0000000..38386b6
--- /dev/null
+++ b/26/02/3379.go
@@ -0,0 +1,18 @@
+package A
+
+func constructTransformedArray(nums []int) []int {
+	n := len(nums)
+	res := make([]int, n)
+	for i, v := range nums {
+		if v > 0 {
+			res[i] = nums[(i+v)%n]
+		}
+		if v == 0 {
+			res[i] = v
+		}
+		if v < 0 {
+			res[i] = nums[((i+v)%n+n)%n]
+		}
+	}
+	return res
+}
diff --git a/26/02/693.go b/26/02/693.go
new file mode 100644
index 0000000..704304c
--- /dev/null
+++ b/26/02/693.go
@@ -0,0 +1,6 @@
+package A
+
+func hasAlternatingBits(n int) bool {
+	n = n ^ (n >> 1)
+	return n&(n+1) == 0
+}
diff --git a/test.go b/test.go
new file mode 100644
index 0000000..f5806f9
--- /dev/null
+++ b/test.go
@@ -0,0 +1,15 @@
+package main
+
+import (
+	"fmt"
+	"sort"
+)
+
+func sorts(arr []int) {
+	sort.Ints(arr)
+	fmt.Println(arr)
+}
+
+func main() {
+	sorts([]int{3, 8, -10, 23, 19, -4, -14, 27})
+}