diff --git "a/\357\200\242two-sum.cpp" "b/\357\200\242two-sum.cpp"
new file mode 100644
index 0000000..111a83a
--- /dev/null
+++ "b/\357\200\242two-sum.cpp"
@@ -0,0 +1,25 @@
+#include "two-sum.hpp"
+
+#define ARRAY_SIZE 5
+
+ bool two_sum(
+     const int nums[ARRAY_SIZE],
+     const int target,
+     std::size_t& index0,
+     std::size_t& index1
+)
+{
+    for(int i = 0; i < ARRAY_SIZE - 1; i++)
+    {
+        for(int j = i+1; j < ARRAY_SIZE; j++)
+        {
+            if(nums[i]+nums[j] == target)
+            {
+                index0 = i;
+                index1 = j;
+                return true;
+            }
+        }
+    }
+    return false;
+};