The replies for https://proglib.io/p/5-problems-for-software-engineer/
> git clone https://github.com/s373r/5-problems-for-software-engineer.git
> cd 5-problems-for-software-engineer
> npm starttask_01
method_01_A ([1,2,3]) ==> 6
method_01_B ([1,2,3]) ==> 6
method_02 ([1,2,3]) ==> 6
method_03 ([1,2,3]) ==> 6
task_02
method_01 ([1,2,3,4]["a","b","c"]) ==> [1,"a",2,"b",3,"c",4]
task_03
method_01 ([0,1]100) ==> [0,1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,6765,10946,17711,28657,46368,75025,121393,196418,317811,514229,832040,1346269,2178309,3524578,5702887,9227465,14930352,24157817,39088169,63245986,102334155,165580141,267914296,433494437,701408733,1134903170,1836311903,2971215073,4807526976,7778742049,12586269025,20365011074,32951280099,53316291173,86267571272,139583862445,225851433717,365435296162,591286729879,956722026041,1548008755920,2504730781961,4052739537881,6557470319842,10610209857723,17167680177565,27777890035288,44945570212853,72723460248141,117669030460994,190392490709135,308061521170129,498454011879264,806515533049393,1304969544928657,2111485077978050,3416454622906707,5527939700884757,8944394323791464,14472334024676220,23416728348467684,37889062373143900,61305790721611580,99194853094755490,160500643816367070,259695496911122560,420196140727489660,679891637638612200,1100087778366101900,1779979416004714000,2880067194370816000,4660046610375530000,7540113804746346000,12200160415121877000,19740274219868226000,31940434634990100000,51680708854858330000,83621143489848430000,135301852344706760000,218922995834555200000]
task_04
method_01 ([50,2,1,9]) ==> "95021"
task_05
method_01 ([1,2,3,4,5,6,7,8,9]) ==> ["1+2+3-4+5+6+78+9 = 100","1+2+34-5+67-8+9 = 100","1+23-4+5+6+78-9 = 100","1+23-4+56+7+8+9 = 100","12+3+4+5-6-7+89 = 100","12+3-4+5+67+8+9 = 100","12-3-4+5-6+7+89 = 100","123+4-5+67-89 = 100","123+45-67+8-9 = 100","123-4-5-6-7+8-9 = 100","123-45-67+89 = 100"]