답안 #7157

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
7157	2014-07-27T07:44:31 Z	tncks0121	경비원 (GA8_guard)	C++	21 / 100	2000 ms	20444 KB

guard

#include <cstdio>
using namespace std;
 
int gcd (int a, int b) { return b == 0 ? a : gcd(b, a%b); }
int n, a[2225], g[2225][2225], w[2225], c;
bool used[2225];
int res;
void solve (int x) {
	if(x == n) { ++res; return; }
	solve(x+1);
	for(int i = 0; i < c; i++) {
		if(g[x][w[i]] > 1) return;
	}
	w[c++] = x;
	solve(x+1);
	w[--c] = 0;
}
int main() {
	scanf("%d", &n);
	for(int i = 0; i < n; i++) scanf("%d", a+i);
	for(int i = 0; i < n; i++) {
		for(int j = i+1; j < n; j++) {
			g[i][j] = g[j][i] = gcd(a[i], a[j]);
		}
	}
 
	solve(0);
	res -= n+1;
	printf("%d\n", res);
	return 0;
}	

Subtask #1

8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	20444 KB	Output is correct
2	Correct	0 ms	20444 KB	Output is correct
3	Correct	0 ms	20444 KB	Output is correct
4	Correct	0 ms	20444 KB	Output is correct
5	Correct	0 ms	20444 KB	Output is correct
6	Correct	0 ms	20444 KB	Output is correct
7	Correct	0 ms	20444 KB	Output is correct
8	Correct	0 ms	20444 KB	Output is correct
9	Correct	0 ms	20444 KB	Output is correct
10	Correct	0 ms	20444 KB	Output is correct
11	Correct	0 ms	20444 KB	Output is correct
12	Correct	0 ms	20444 KB	Output is correct
13	Correct	0 ms	20444 KB	Output is correct
14	Correct	0 ms	20444 KB	Output is correct
15	Correct	0 ms	20444 KB	Output is correct
16	Correct	0 ms	20444 KB	Output is correct
17	Correct	0 ms	20444 KB	Output is correct
18	Correct	0 ms	20444 KB	Output is correct
19	Correct	0 ms	20444 KB	Output is correct
20	Correct	0 ms	20444 KB	Output is correct
21	Correct	0 ms	20444 KB	Output is correct
22	Correct	0 ms	20444 KB	Output is correct
23	Correct	0 ms	20444 KB	Output is correct
24	Correct	0 ms	20444 KB	Output is correct
25	Correct	0 ms	20444 KB	Output is correct
26	Correct	0 ms	20444 KB	Output is correct
27	Correct	0 ms	20444 KB	Output is correct
28	Correct	0 ms	20444 KB	Output is correct
29	Correct	0 ms	20444 KB	Output is correct
30	Correct	24 ms	20444 KB	Output is correct
31	Correct	0 ms	20444 KB	Output is correct
32	Correct	0 ms	20444 KB	Output is correct
33	Correct	0 ms	20444 KB	Output is correct
34	Correct	0 ms	20444 KB	Output is correct
35	Correct	0 ms	20444 KB	Output is correct
36	Correct	0 ms	20444 KB	Output is correct
37	Correct	0 ms	20444 KB	Output is correct
38	Correct	0 ms	20444 KB	Output is correct
39	Correct	0 ms	20444 KB	Output is correct
40	Correct	0 ms	20444 KB	Output is correct
41	Correct	0 ms	20444 KB	Output is correct
42	Correct	0 ms	20444 KB	Output is correct

Subtask #2

13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	20444 KB	Output is correct
2	Correct	0 ms	20444 KB	Output is correct
3	Correct	0 ms	20444 KB	Output is correct
4	Correct	0 ms	20444 KB	Output is correct
5	Correct	0 ms	20444 KB	Output is correct
6	Correct	0 ms	20444 KB	Output is correct
7	Correct	0 ms	20444 KB	Output is correct
8	Correct	0 ms	20444 KB	Output is correct
9	Correct	0 ms	20444 KB	Output is correct
10	Correct	0 ms	20444 KB	Output is correct
11	Correct	0 ms	20444 KB	Output is correct
12	Correct	0 ms	20444 KB	Output is correct
13	Correct	0 ms	20444 KB	Output is correct
14	Correct	0 ms	20444 KB	Output is correct
15	Correct	0 ms	20444 KB	Output is correct
16	Correct	0 ms	20444 KB	Output is correct
17	Correct	0 ms	20444 KB	Output is correct
18	Correct	0 ms	20444 KB	Output is correct
19	Correct	0 ms	20444 KB	Output is correct
20	Correct	0 ms	20444 KB	Output is correct
21	Correct	0 ms	20444 KB	Output is correct
22	Correct	0 ms	20444 KB	Output is correct
23	Correct	0 ms	20444 KB	Output is correct
24	Correct	0 ms	20444 KB	Output is correct
25	Correct	0 ms	20444 KB	Output is correct
26	Correct	0 ms	20444 KB	Output is correct
27	Correct	0 ms	20444 KB	Output is correct
28	Correct	0 ms	20444 KB	Output is correct
29	Correct	0 ms	20444 KB	Output is correct
30	Correct	0 ms	20444 KB	Output is correct
31	Correct	0 ms	20444 KB	Output is correct
32	Correct	0 ms	20444 KB	Output is correct
33	Correct	4 ms	20444 KB	Output is correct
34	Correct	4 ms	20444 KB	Output is correct
35	Correct	4 ms	20444 KB	Output is correct
36	Correct	8 ms	20444 KB	Output is correct
37	Correct	8 ms	20444 KB	Output is correct
38	Correct	12 ms	20444 KB	Output is correct
39	Correct	12 ms	20444 KB	Output is correct
40	Correct	20 ms	20444 KB	Output is correct
41	Correct	24 ms	20444 KB	Output is correct
42	Correct	32 ms	20444 KB	Output is correct
43	Correct	36 ms	20444 KB	Output is correct

Subtask #3

0.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	2000 ms	20440 KB	Program timed out
2	Halted	0 ms	0 KB	-

Subtask #4

0.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	2000 ms	20440 KB	Program timed out
2	Halted	0 ms	0 KB	-

Subtask #5

0.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	2000 ms	20440 KB	Program timed out
2	Halted	0 ms	0 KB	-