h3. Explicaţie
$[3, 4, 2, 1, 5]$ permutat la stanga de $4$ ori va rezulta $[5, 3, 4, 2, 1]$ -> $[5/1] + [3/2] + [4/3] + [2/4] + [1/5] = 5 + 1 + 1 + 0 + 0 = 7$

$[100000, 0, 100000]$ permutat la stanga de $4$ ori va rezulta $[100000, 100000, 0]$ -> $[100000/1] + [100000/2] + [0/3] = 100000 + 50000 + 0 = 150000$

$[100000, 0, 100000]$ permutat la stanga de $2$ ori va rezulta $[100000, 100000, 0]$ -> $[100000/1] + [100000/2] + [0/3] = 100000 + 50000 + 0 = 150000$

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