# Answer to Question #34926 in AJAX | JavaScript | HTML | PHP for John

Question #34926

Write an algorithm that returns the index of the last occurrence of the value key in a sequence s1, …,sn. If key is not in the sequence, the algorithm returns 0. Example, if the sequence is 12 11 12 23 and key is 12, the algorithm returns 3.

Expert's answer

`Input: sequence "s" indexed from 1 to n; number of elements in the sequence "n" `

Output: First occurrence of the largest element in the sequence

find_largest_element(s,n) {

large = s_1 \\ initializes large

index_large = 1 \\ initializes the index of large

for i = 2 to n \\ steps through the sequence

if (s_i > large) { \\ since this is >, it will not be called if value

equals large

large = s_i

index_large = i

}

return index_large

}

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