Data commit

Task/Taxicab-numbers/Sidef/taxicab-numbers.sidef

@@ -0,0 +1,29 @@
+var (start=1, end=25) = ARGV.map{.to_i}...
+ 
+func display (h, start, end) {
+    var i = start
+    for n in [h.grep {|_,v| v.len > 1 }.keys.sort_by{.to_i}[start-1 .. end-1]] {
+        printf("%4d %10d  =>\t%s\n", i++, n,
+            h{n}.map{ "%4d³ + %-s" % (.first, "#{.last}³") }.join(",\t"))
+    }
+}
+ 
+var taxi = Hash()
+var taxis = 0
+var terminate = 0
+ 
+for c1 (1..Inf) {
+    if (0<terminate && terminate<c1) {
+        display(taxi, start, end)
+        break
+    }
+    var c = c1**3
+    for c2 (1..c1) {
+        var this = (c2**3 + c)
+        taxi{this} := [] << [c2, c1]
+        ++taxis if (taxi{this}.len == 2)
+        if (taxis==end && !terminate) {
+            terminate = taxi.grep{|_,v| v.len > 1 }.keys.map{.to_i}.max.root(3)
+        }
+    }
+}