165. 階乘計算

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user_6817964
c_cpp
3 years ago
199 B
4
Indexable
int fac(int n);

int fac(int n) {
	if (n == 1) {
		return 1;
	}
	else {
		return n * fac(n - 1);
	}
}

int main() {

	int n;
	scanf("%d", &n);
	printf("%d", fac(n));
	return 0;

}
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