#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);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1088 KB |
Output is correct |
2 |
Correct |
0 ms |
1088 KB |
Output is correct |
3 |
Correct |
0 ms |
1088 KB |
Output is correct |
4 |
Correct |
0 ms |
1088 KB |
Output is correct |
5 |
Correct |
0 ms |
1088 KB |
Output is correct |
6 |
Incorrect |
0 ms |
1088 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |