1538. Guess the Majority in a Hidden Array
ArrayMathInteractiveBoyer–Moore Majority Vote Algorithm
Hints
Hint 1
If you find that 2 indexes in the array (id1, id2) have the same value (nums [id1] == nums [id2]), you could infer the values of (x, y) based on the results of query (id1, id2, x, y).
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