#include <stdio.h> int main(void) { int i,n; long p=1; for (i=1; i<=n; i++) {p=i*p; } return 0; }
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Please enter n:1! = 1 2! = 2 3! = 6 4! = 24 5! = 120 6! = 720 7! = 5040 8! = 40320 9! = 362880 10! = 3628800 11! = 39916800 12! = 479001600 13! = 6227020800 14! = 87178291200 15! = 1307674368000