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Problem $1$

You are going to factorize a positive number from the input, and then print all the positive factors. Also, you need to measure the time required to finish the computation.

By including time.h$,$ you can print the time elapsed by the code segment

clock$\_$t begin $=$clock$()$;

$//$ The codes to be measured in here.

clock$\_$t end $=$clock$()$;

double time$\_$spent double