Challenges 33/40/42/73

10 files changed, 83 insertions, 0 deletions

diff --git a/challenge-033/conor-hoekstra/ch-02.apl b/challenge-033/conor-hoekstra/ch-02.apl
new file mode 100644
index 0000000000..da2b91a61e
--- /dev/null
+++ b/challenge-033/conor-hoekstra/ch-02.apl
@@ -0,0 +1,14 @@
+multiplicationTable ← (' '@(0=⊢))∘.(××≤)⍨⍳11
+
+⍝ Output
+1 2 3  4  5  6  7  8  9  10  11
+  4 6  8 10 12 14 16 18  20  22
+    9 12 15 18 21 24 27  30  33
+      16 20 24 28 32 36  40  44
+         25 30 35 40 45  50  55
+            36 42 48 54  60  66
+               49 56 63  70  77
+                  64 72  80  88
+                     81  90  99
+                        100 110
+                            121
diff --git a/challenge-040/conor-hoekstra/ch-01.apl b/challenge-040/conor-hoekstra/ch-01.apl
new file mode 100644
index 0000000000..99d6f69a2e
--- /dev/null
+++ b/challenge-040/conor-hoekstra/ch-01.apl
@@ -0,0 +1,13 @@
+solution ← ⍉
+
+⍝ Tests
+input ← ↑'ILOVEYOU' '24032019' '!?£$%^&*'
+solution input
+I2!
+L4?
+O0£
+V3$
+E2%
+Y0^
+O1&
+U9*
diff --git a/challenge-040/conor-hoekstra/ch-02.apl b/challenge-040/conor-hoekstra/ch-02.apl
new file mode 100644
index 0000000000..f905e1f53a
--- /dev/null
+++ b/challenge-040/conor-hoekstra/ch-02.apl
@@ -0,0 +1,4 @@
+solution ← {(⊂⍤⍋⌷⊢)@(1+⍺)⊢⍵}
+
+⍝ Tests
+0 2 5 solution 10 4 1 8 12 3 ⍝ 1 4 3 8 12 10
diff --git a/challenge-040/conor-hoekstra/ch-02.bqn b/challenge-040/conor-hoekstra/ch-02.bqn
new file mode 100644
index 0000000000..fdb49aba6b
--- /dev/null
+++ b/challenge-040/conor-hoekstra/ch-02.bqn
@@ -0,0 +1,4 @@
+Solution ← {∧⌾(𝕨⊸⊏)𝕩}
+
+# Tests
+0‿2‿5 Solution 10‿4‿1‿8‿12‿3 # ⟨ 1 4 3 8 12 10 ⟩
diff --git a/challenge-042/conor-hoekstra/ch-01.apl b/challenge-042/conor-hoekstra/ch-01.apl
new file mode 100644
index 0000000000..5a01efcfb5
--- /dev/null
+++ b/challenge-042/conor-hoekstra/ch-01.apl
@@ -0,0 +1,10 @@
+octal ← 10⊥8(⊥⍣¯1)⊢
+
+⍝ Output
+5 10⍴ octal ⍳50
+ 1  2  3  4  5  6  7 10 11 12
+13 14 15 16 17 20 21 22 23 24
+25 26 27 30 31 32 33 34 35 36
+37 40 41 42 43 44 45 46 47 50
+51 52 53 54 55 56 57 60 61 62
+      
\ No newline at end of file
diff --git a/challenge-042/conor-hoekstra/ch-02.apl b/challenge-042/conor-hoekstra/ch-02.apl
new file mode 100644
index 0000000000..0e8c692c3d
--- /dev/null
+++ b/challenge-042/conor-hoekstra/ch-02.apl
@@ -0,0 +1,20 @@
+isValid ← ((0=⊃∘⌽)∧0∧.≤⊢)∘(+\-⌿)'()'∘.=⊢
+
+⍝ Tests
+(isValid,⊢) '()'[?2⍴⍨?10] ⍝ 0 ()))))()(
+(isValid,⊢) '()'[?2⍴⍨?10] ⍝ 1 (())
+(isValid,⊢) '()'[?2⍴⍨?10] ⍝ 0 (((())
+(isValid,⊢) '()'[?2⍴⍨?10] ⍝ 1 ()((()))
+(isValid,⊢) '()'[?2⍴⍨?10] ⍝ 0 ((( 
+
+⍝ Tacit Tree Visualization
+
+              isValid
+            ┌────┴─────┐  
+            ∘       ┌──┼─┐
+      ┌─────┴─────┐ () . ⊢
+  ┌───┼───┐     ┌─┴─┐ ┌┴┐ 
+┌─┼─┐ ∧ ┌─┼─┐   \   ⌿ ∘ = 
+0 = ∘   0 . ⊢ ┌─┘ ┌─┘     
+   ┌┴┐   ┌┴┐  +   -       
+   ⊃ ⌽   ∧ ≤   
diff --git a/challenge-073/conor-hoekstra/ch-01.apl b/challenge-073/conor-hoekstra/ch-01.apl
new file mode 100644
index 0000000000..302221e932
--- /dev/null
+++ b/challenge-073/conor-hoekstra/ch-01.apl
@@ -0,0 +1,4 @@
+solution ← 3⌊/⊢
+
+⍝ Tests
+solution 1 5 0 2 9 3 7 6 4 8 ⍝ 0 0 0 2 3 3 4 4
diff --git a/challenge-073/conor-hoekstra/ch-01.bqn b/challenge-073/conor-hoekstra/ch-01.bqn
new file mode 100644
index 0000000000..b7c889e6ae
--- /dev/null
+++ b/challenge-073/conor-hoekstra/ch-01.bqn
@@ -0,0 +1,4 @@
+Solution ← ⌊´⎉1 3↕⊢
+
+# Tests
+Solution 1‿5‿0‿2‿9‿3‿7‿6‿4‿8 # ⟨ 0 0 0 2 3 3 4 4 ⟩
diff --git a/challenge-073/conor-hoekstra/ch-02.apl b/challenge-073/conor-hoekstra/ch-02.apl
new file mode 100644
index 0000000000..d83cb0a9c2
--- /dev/null
+++ b/challenge-073/conor-hoekstra/ch-02.apl
@@ -0,0 +1,5 @@
+solution ← (⌊/(⊣×≠)⊃∘⌽)¨,\
+
+⍝ Tests
+solution 7 8 3 12 10 ⍝ 0 7 0 3 3
+solution 4 6 5       ⍝ 0 4 4
diff --git a/challenge-073/conor-hoekstra/ch-02.bqn b/challenge-073/conor-hoekstra/ch-02.bqn
new file mode 100644
index 0000000000..138ed10180
--- /dev/null
+++ b/challenge-073/conor-hoekstra/ch-02.bqn
@@ -0,0 +1,5 @@
+Solution ← (⌊´(⊣×≠)⊑∘⌽)¨1⊸↓∘↑
+
+# Tests
+Solution 7‿8‿3‿12‿10 # ⟨ 0 7 0 3 3 ⟩
+Solution 4‿6‿5       # ⟨ 0 4 4 ⟩