The number of functions defined from {1,2,3,4,5} ------> {6,7,8,9,10} which is alternatively increasing and decreasing i.e. a local maxima comes between two local minimas, and a local minima comes between two local maximas.
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The number of functions defined from {1,2,3,4,5} ------> {6,7,8,9,10} which is alternatively increasing and decreasing i.e. a local maxima comes between two local minimas, and a local minima comes between two local maximas.