TWC201

1 files changed, 31 insertions, 0 deletions

diff --git a/challenge-201/deadmarshal/cpp/ch-2.cpp b/challenge-201/deadmarshal/cpp/ch-2.cpp
new file mode 100644
index 0000000000..d05bc157e5
--- /dev/null
+++ b/challenge-201/deadmarshal/cpp/ch-2.cpp
@@ -0,0 +1,31 @@
+#include<iostream>
+
+#define N 5
+static int count{};
+
+void find_combinations(int *arr,
+		       int index,
+		       int num,
+		       int reduced_num)
+{
+  if(reduced_num < 0) return;
+  if(reduced_num == 0)
+  {
+    count++;
+    return;
+  }
+  int prev = index == 0 ? 1 : arr[index-1];
+  for(int i = prev; i <= num; ++i)
+  {
+    arr[index] = i;
+    find_combinations(arr,index+1,num,reduced_num-i);
+  }
+}
+
+int main()
+{
+  int arr[N];
+  find_combinations(arr,0,N,N);
+  std::cout << count << '\n';
+}
+