Submission #3639

#	Time	Username	Problem	Language	Result	Execution time	Memory
3639		waps12b	Great Pow! (kriii1_G)	C++98	0 / 1	0 ms	1088 KiB

G

#include<cstdio>


int main() {
	int a, k;
	scanf("%d%d", &a, &k);
	int b = a+1;
	bool chk = 0;
	for(int i = 2 ; i*i <= b ; i++) {
		if( b%i == 0 ) {
			chk = 1;
			break;
		}
	}
	if( k == 0 ) {
		printf("%d\n", a);
		return 0;
	}

	if(chk) { //소수가 아니다
		printf("%d\n", a);
	}
	else printf("%d\n", 1);
}

• Subtask 1: 0 / 1