Add example augmented radix tree figure

ConflictSet.cpp

@@ -2232,13 +2232,24 @@ void printTree() {
   ConflictSet::Impl cs{writeVersion};
   ReferenceImpl refImpl{writeVersion};
   Arena arena;
-  constexpr int kNumKeys = 5;
+  constexpr int kNumKeys = 4;
   auto *write = new (arena) ConflictSet::WriteRange[kNumKeys];
-  for (int i = 0; i < kNumKeys; ++i) {
-    write[i].begin = toKey(arena, i);
-    write[i].end.len = 0;
-    write[i].writeVersion = ++writeVersion;
-  }
+  write[0].begin = "and"_s;
+  write[0].end = "ant"_s;
+  write[0].writeVersion = 1;
+
+  write[1].begin = "any"_s;
+  write[1].end.len = 0;
+  write[1].writeVersion = 2;
+
+  write[2].begin = "are"_s;
+  write[2].end.len = 0;
+  write[2].writeVersion = 3;
+
+  write[3].begin = "art"_s;
+  write[3].end.len = 0;
+  write[3].writeVersion = 4;
+
   cs.addWrites(write, kNumKeys);
   for (int i = 0; i < kNumKeys; ++i) {
     write[i].writeVersion = ++writeVersion;
@@ -2251,6 +2262,8 @@ void printTree() {
 #include "third_party/nanobench.h"
 
 int main(void) {
+  printTree();
+  return 0;
   ankerl::nanobench::Bench bench;
   ConflictSet::Impl cs{0};
   for (int j = 0; j < 256; ++j) {