-| [ ] | 1.01.p.2 | ---- interpreter: interp | --- | -- | -- | ---------- | ---------- |
-| [ ] | 1.01.e | --- Exercises | 002 | -- | -- | ---------- | ---------- |
-| [ ] | 1.01.e.1.a | ---- tree member | --- | -- | -- | ---------- | ---------- |
-| [ ] | 1.01.e.1.b | ---- tree key/val | --- | -- | -- | ---------- | ---------- |
-| [ ] | 1.01.e.1.c | ---- demo unbalanced behaviour | --- | -- | -- | ---------- | ---------- |
-| [ ] | 1.01.e.1.d | ---- find functional balanced tree | --- | -- | -- | ---------- | ---------- |
-| ------ | ---------- | ---------------------------------------- | ----- | -------- | ------ | ---------- | ---------- |
-| [ ] | 1.02 | -- Lexical Analysis | 024 | 01 | -- | ---------- | ---------- |
+| [x] | 1.01.p.2 | ---- interpreter: interp | --- | -- | -- | 2018-04-17 | 2018-04-17 |
+| [-] | 1.01.e | --- Exercises | 002 | -- | -- | ---------- | ---------- |
+| [x] | 1.01.e.1.a | ---- tree member | --- | -- | -- | 2018-04-17 | 2018-04-17 |
+| [x] | 1.01.e.1.b | ---- tree key/val | --- | -- | -- | 2018-04-18 | 2018-04-18 |
+| [x] | 1.01.e.1.c | ---- demo unbalanced behaviour | --- | -- | -- | 2018-04-18 | 2018-04-18 |
+| [x] | 1.01.e.1.d | ---- find functional balanced tree | --- | -- | -- | 2018-04-19 | 2018-04-20 |
+| ------ | ---------- | ---------------------------------------- | ----- | -------- | ------ | ---------- | ---------- |
+| [ ] | 1.02 | -- Lexical Analysis | 024 | 01 | 01 | 2018-05-22 | 2018-05-22 |