/* */ /* Polozov Victor (с) 2009 */ /* Task 1b: iterative factorial */ /* */
#include "stdio.h"
int main() { int n; int i; int fact = 1;
/* read N */ scanf("%d", &n);
/* N! = 2 * 3 * ... N, if N >= 2 */ /* N! = 1 else */ for (i = 2; i <= n; i++) { fact = i * fact; }
/* print N! */ printf("%d", fact);
return 0; }
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