diff --git a/.gitignore b/.gitignore
index adb36c8..93e3946 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-*.exe
\ No newline at end of file
+*.exe
+*.out
\ No newline at end of file
diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
index a031f9a..a095222 100644
--- a/.vscode/c_cpp_properties.json
+++ b/.vscode/c_cpp_properties.json
@@ -1,19 +1,12 @@
 {
     "configurations": [
         {
-            "name": "Win32",
+            "name": "Linux",
             "includePath": [
                 "${workspaceFolder}/**"
             ],
-            "defines": [
-                "_DEBUG",
-                "UNICODE",
-                "_UNICODE"
-            ],
-            "compilerPath": "E:\\Applications\\MSYS2\\ucrt64\\bin\\g++.exe",
-            "cStandard": "c17",
-            "cppStandard": "c++17",
-            "intelliSenseMode": "windows-gcc-x64"
+            "defines": [],
+            "compilerPath": "/usr/bin/g++"
         }
     ],
     "version": 4
diff --git a/.vscode/launch.json b/.vscode/launch.json
index 18b70d7..b66a0ae 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -1,29 +1,26 @@
 {
-    // Use IntelliSense to learn about possible attributes.
-    // Hover to view descriptions of existing attributes.
-    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
-    "version": "0.2.0",
-    "configurations": [
-         {
-            "name": "g++.exe - Build and debug active file",
-            "type": "cppdbg",
-            "request": "launch",
-            "program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
-            "args": [],
-            "stopAtEntry": false,
-            "cwd": "${fileDirname}",
-            "environment": [],
-            "externalConsole": false,
-            "MIMode": "gdb",
-            "miDebuggerPath": "E:\\Applications\\MSYS2\\ucrt64\\bin\\gdb.exe",
-            "setupCommands": [
-                {
-                    "description": "Enable pretty-printing for gdb",
-                    "text": "-enable-pretty-printing",
-                    "ignoreFailures": true
-                }
-            ],
-            "preLaunchTask": "C/C++: g++.exe build active file"
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "g++ - Build and debug active file",
+      "type": "cppdbg",
+      "request": "launch",
+      "program": "${fileDirname}/${fileBasenameNoExtension}.out",
+      "args": [],
+      "stopAtEntry": false,
+      "cwd": "${fileDirname}",
+      "environment": [],
+      "externalConsole": false,
+      "MIMode": "gdb",
+      "setupCommands": [
+        {
+          "description": "Enable pretty-printing for gdb",
+          "text": "-enable-pretty-printing",
+          "ignoreFailures": true
         }
-    ]
+      ],
+      "preLaunchTask": "C/C++: g++ build active file",
+      "miDebuggerPath": "/usr/bin/gdb"
+    }
+  ]
 }
\ No newline at end of file
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index bfb3b57..164b1d6 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -1,28 +1,28 @@
 {
-	"version": "2.0.0",
-	"tasks": [
-		{
-			"type": "cppbuild",
-			"label": "C/C++: g++.exe build active file",
-			"command": "E:\\Applications\\MSYS2\\ucrt64\\bin\\g++.exe",
-			"args": [
-				"-fdiagnostics-color=always",
-				"-g",
-				"${file}",
-				"-o",
-				"${fileDirname}\\${fileBasenameNoExtension}.exe"
-			],
-			"options": {
-				"cwd": "E:\\Applications\\MSYS2\\ucrt64\\bin"
-			},
-			"problemMatcher": [
-				"$gcc"
-			],
-			"group": {
-				"kind": "build",
-				"isDefault": true
-			},
-			"detail": "compiler: E:\\Applications\\MSYS2\\ucrt64\\bin\\g++.exe"
-		}
-	]
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: g++ build active file",
+            "command": "/usr/bin/g++",
+            "args": [
+                "-fdiagnostics-color=always",
+                "-g",
+                "${file}",
+                "-o",
+                "${fileDirname}/${fileBasenameNoExtension}.out"
+            ],
+            "options": {
+                "cwd": "${fileDirname}"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "detail": "Task generated by Debugger."
+        }
+    ],
+    "version": "2.0.0"
 }
\ No newline at end of file
diff --git a/10-238.c b/10-238.c
new file mode 100644
index 0000000..a30db23
--- /dev/null
+++ b/10-238.c
@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+/**
+ * Note: The returned array must be malloced, assume caller calls free().
+ */
+int* productExceptSelf(int* nums, int numsSize, int* returnSize) {
+    int *left = (int *)malloc(numsSize * sizeof(int));
+    int *right = (int *)malloc(numsSize * sizeof(int));
+    int par_prod = 1;
+    for (int i = 0; i < numsSize; ++i) {
+        par_prod *= nums[i];
+        left[i] = par_prod;
+    }
+
+    par_prod = 1;
+    for (int i = numsSize - 1; i >= 0; --i) {
+        par_prod *= nums[i];
+        right[i] = par_prod;
+    }
+
+    int *result = (int *)malloc(numsSize * sizeof(int));
+    result[0] = right[1];
+    result[numsSize - 1] = left[numsSize - 2];
+    for (int i = 1; i < numsSize - 1; ++i) {
+        result[i] = left[i - 1] * right[i + 1];
+    }
+    *returnSize = numsSize;
+    return result;
+}
+
+int main() {
+    int nums[] = {1, 2, 3, 4};
+    int result_size;
+    int *result = productExceptSelf(nums, sizeof(nums) / sizeof(int), &result_size);
+    for (int i = 0; i < result_size; ++i) {
+        printf("%d ", result[i]);
+    }
+    printf("\n");
+    free(result);
+    return 0;
+}
\ No newline at end of file