Merge pull request #1057 from sulaimanhayek/main

Create 392-is-subsequence.cs && 1480-Running-Sum-of-1d-Array.cs

Author: Ahmad-A0

Diff for: csharp/1480-Running-Sum-Of-1D-Array.cs

@@ -0,0 +1,11 @@
+public class Solution
+{
+    public int[] RunningSum(int[] nums)
+    {
+        for (int i = 1; i < nums.Length; i++)
+        {
+            nums[i] = nums[i - 1] + nums[i];
+        }
+        return nums;
+    }
+}

Diff for: csharp/392-Is-Subsequence.cs

@@ -0,0 +1,22 @@
+public class Solution
+{
+    public bool IsSubsequence(string s, string t)
+    {
+        int i = 0;
+        int j = 0;
+        while ((i < s.Length) && (j < t.Length))
+        {
+            if (s[i] == t[j])
+            {
+                i += 1;
+            }
+            j += 1;
+
+        }
+        if (i == s.Length)
+        {
+            return true;
+        }
+        else return false;
+    }
+}