fix(solutions): fix: more memory issues thanks to -fsanitize=address flag with gcc

challenges/heap-algorithm/test/1/output.txt

@@ -1,6 +1,6 @@
 abc
 bac
-cba
-bca
 cab
-acb
+acb
+bca
+cba

challenges/heap-algorithm/test/2/output.txt

@@ -1,24 +1,24 @@
 cool
 ocol
-oocl
-oocl
 ocol
 cool
+oocl
+oocl
+loco
+olco
+cloo
+lcoo
+oclo
+colo
+colo
+oclo
+lcoo
+cloo
+olco
+loco
 looc
 oloc
-oolc
-oolc
 oloc
 looc
-cool
-ocol
-oocl
-oocl
-ocol
-cool
-looc
-oloc
 oolc
-oolc
-oloc
-looc
+oolc

challenges/heap-algorithm/test/3/output.txt

@@ -1,120 +1,120 @@
 kayak
 akyak
-yakak
-aykak
 ykaak
 kyaak
-aaykk
-aaykk
-yaakk
-ayakk
-yaakk
-ayakk
-kayak
+aykak
+yakak
+aakyk
+aakyk
+kaayk
+akayk
+akayk
+kaayk
+kyaak
+ykaak
 akyak
-yakak
-aykak
-ykaak
-kyaak
-aaykk
-aaykk
-yaakk
-ayakk
-yaakk
-ayakk
 kayak
-akyak
 yakak
 aykak
-ykaak
-kyaak
+ayakk
+yaakk
 aaykk
 aaykk
 yaakk
 ayakk
-yaakk
-ayakk
-kayak
-akyak
-yakak
-aykak
-ykaak
-kyaak
-aaykk
-aaykk
-yaakk
-ayakk
-yaakk
-ayakk
-kkyaa
-kkyaa
-ykkaa
-kykaa
-ykkaa
-kykaa
+kyaka
+ykaka
 akyka
 kayka
-ykaka
-kyaka
 yakka
 aykka
+kykaa
+ykkaa
 kkyaa
 kkyaa
 ykkaa
 kykaa
+kakya
+akkya
+kkaya
+kkaya
+akkya
+kakya
+kayka
+akyka
+ykaka
+kyaka
+aykka
+yakka
+aakky
+aakky
+kaaky
+akaky
+akaky
+kaaky
+kaaky
+akaky
+akaky
+kaaky
+aakky
+aakky
+akkay
+kakay
+kakay
+akkay
+kkaay
+kkaay
+kkaay
+kkaay
+akkay
+kakay
+kakay
+akkay
 ykkaa
 kykaa
+kykaa
+ykkaa
+kkyaa
+kkyaa
 akyka
 kayka
-ykaka
-kyaka
 yakka
 aykka
-kkaay
-kkaay
-akkay
-kakay
-akkay
-kakay
-akaky
-kaaky
-akaky
-kaaky
-aakky
-aakky
-kkaay
-kkaay
-akkay
-kakay
-akkay
-kakay
-akaky
-kaaky
-akaky
-kaaky
-aakky
-aakky
-kkaya
-kkaya
-akkya
-kakya
-akkya
-kakya
+kyaka
+ykaka
 ykaka
 kyaka
-akyka
-kayka
 aykka
 yakka
-kkaya
-kkaya
-akkya
-kakya
-akkya
-kakya
-ykaka
-kyaka
-akyka
 kayka
-aykka
-yakka
+akyka
+akkya
+kakya
+kakya
+akkya
+kkaya
+kkaya
+akayk
+kaayk
+aakyk
+aakyk
+kaayk
+akayk
+ykaak
+kyaak
+aykak
+yakak
+kayak
+akyak
+aaykk
+aaykk
+yaakk
+ayakk
+ayakk
+yaakk
+yakak
+aykak
+kyaak
+ykaak
+akyak
+kayak