2025-04-21 20:10:45 +08:00

16 lines
248 B
C

#include <stdio.h>
int factorial(int n) {
if (n == 0 || n == 1) {
return 1;
} else {
return n * factorial(n - 1);
}
}
int main() {
int num;
scanf("%d", &num);
printf("%d\n", factorial(num));
return 0;
}