diff --git a/.gitignore b/.gitignore
index 3a9801d..9543e25 100644
--- a/.gitignore
+++ b/.gitignore
@@ -163,5 +163,9 @@ dmypy.json
 # Cython debug symbols
 cython_debug/
 
-c_prob/*
-!c_prob/.gitkeep
+code/.idea/
+
+code/c_prob/*
+code/sol/*
+!code/c_prob/.gitkeep
+!code/sol/.gitkeep
diff --git a/aco.cc b/code/aco.cc
similarity index 100%
rename from aco.cc
rename to code/aco.cc
diff --git a/aco/TSP_solver.py b/code/aco/TSP_solver.py
similarity index 100%
rename from aco/TSP_solver.py
rename to code/aco/TSP_solver.py
diff --git a/aco/__init__.py b/code/aco/__init__.py
similarity index 100%
rename from aco/__init__.py
rename to code/aco/__init__.py
diff --git a/aco/ant_colony.py b/code/aco/ant_colony.py
similarity index 100%
rename from aco/ant_colony.py
rename to code/aco/ant_colony.py
diff --git a/aco/io_tsp.py b/code/aco/io_tsp.py
similarity index 100%
rename from aco/io_tsp.py
rename to code/aco/io_tsp.py
diff --git a/aco/utils.py b/code/aco/utils.py
similarity index 100%
rename from aco/utils.py
rename to code/aco/utils.py
diff --git a/c_prob/.gitkeep b/code/c_prob/.gitkeep
similarity index 100%
rename from c_prob/.gitkeep
rename to code/c_prob/.gitkeep
diff --git a/opt.cc b/code/opt.cc
similarity index 100%
rename from opt.cc
rename to code/opt.cc
diff --git a/opt.h b/code/opt.h
similarity index 100%
rename from opt.h
rename to code/opt.h
diff --git a/problems/.DS_Store b/code/problems/.DS_Store
similarity index 100%
rename from problems/.DS_Store
rename to code/problems/.DS_Store
diff --git a/problems/ch130.tsp b/code/problems/ch130.tsp
similarity index 100%
rename from problems/ch130.tsp
rename to code/problems/ch130.tsp
diff --git a/problems/d198.tsp b/code/problems/d198.tsp
similarity index 100%
rename from problems/d198.tsp
rename to code/problems/d198.tsp
diff --git a/problems/eil76.opt.tour b/code/problems/eil76.opt.tour
similarity index 100%
rename from problems/eil76.opt.tour
rename to code/problems/eil76.opt.tour
diff --git a/problems/eil76.tsp b/code/problems/eil76.tsp
similarity index 100%
rename from problems/eil76.tsp
rename to code/problems/eil76.tsp
diff --git a/problems/fl1577.tsp b/code/problems/fl1577.tsp
similarity index 100%
rename from problems/fl1577.tsp
rename to code/problems/fl1577.tsp
diff --git a/problems/kroA100.opt.tour b/code/problems/kroA100.opt.tour
similarity index 100%
rename from problems/kroA100.opt.tour
rename to code/problems/kroA100.opt.tour
diff --git a/problems/kroA100.tsp b/code/problems/kroA100.tsp
similarity index 100%
rename from problems/kroA100.tsp
rename to code/problems/kroA100.tsp
diff --git a/problems/lin318.tsp b/code/problems/lin318.tsp
similarity index 100%
rename from problems/lin318.tsp
rename to code/problems/lin318.tsp
diff --git a/problems/pcb442.tsp b/code/problems/pcb442.tsp
similarity index 100%
rename from problems/pcb442.tsp
rename to code/problems/pcb442.tsp
diff --git a/problems/pr439.tsp b/code/problems/pr439.tsp
similarity index 100%
rename from problems/pr439.tsp
rename to code/problems/pr439.tsp
diff --git a/problems/rat783.tsp b/code/problems/rat783.tsp
similarity index 100%
rename from problems/rat783.tsp
rename to code/problems/rat783.tsp
diff --git a/problems/u1060.tsp b/code/problems/u1060.tsp
similarity index 100%
rename from problems/u1060.tsp
rename to code/problems/u1060.tsp
diff --git a/readme.md b/code/readme.md
similarity index 100%
rename from readme.md
rename to code/readme.md
diff --git a/code/results.csv b/code/results.csv
new file mode 100644
index 0000000..614d3c6
--- /dev/null
+++ b/code/results.csv
@@ -0,0 +1,2 @@
+,tour length,optimal solution,gap,time to solve
+"('./problems/rat783.tsp', ""'C++ ant colony optimization'"")",9218.0,8806.0,4.68,120.505
diff --git a/run.py b/code/run.py
similarity index 100%
rename from run.py
rename to code/run.py
diff --git a/code/sol/.gitkeep b/code/sol/.gitkeep
new file mode 100644
index 0000000..e69de29