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Submission #7369

# Submission time Handle Problem Language Result Execution time Memory
7369 2014-08-03T15:14:10 Z tncks0121 경비원 (GA8_guard) C++
8 / 100
 524 ms 20444 KB 
#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) {
      for(int i = 0; i < n; i++) if(i < c){
        for(int j = i+1; j < n; j++) if(j < c) {
          if(gcd(a[w[i]], a[w[j]]) > 1) return;
        }
      }
      ++res;
      return;
    }
    solve(x+1);
    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]);
        }
    }
    
    if(n <= 20)solve(0);
    res -= n+1;
    printf("%d\n", res);
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory 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 12 ms 20444 KB Output is correct
10 Correct 0 ms 20444 KB Output is correct
11 Correct 180 ms 20444 KB Output is correct
12 Correct 28 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 4 ms 20444 KB Output is correct
26 Correct 0 ms 20444 KB Output is correct
27 Correct 16 ms 20444 KB Output is correct
28 Correct 40 ms 20444 KB Output is correct
29 Correct 104 ms 20444 KB Output is correct
30 Correct 484 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 4 ms 20444 KB Output is correct
36 Correct 176 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 24 ms 20444 KB Output is correct
42 Correct 524 ms 20444 KB Output is correct

Subtask #2
0.0 / 13.0

# Verdict Execution time Memory 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 4 ms 20444 KB Output is correct
15 Correct 4 ms 20444 KB Output is correct
16 Correct 12 ms 20444 KB Output is correct
17 Correct 24 ms 20444 KB Output is correct
18 Correct 52 ms 20444 KB Output is correct
19 Correct 108 ms 20444 KB Output is correct
20 Incorrect 0 ms 20444 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #3
0.0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 92 ms 20444 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 188 ms 20444 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 36.0

# Verdict Execution time Memory Grader output
1 Incorrect 184 ms 20444 KB Output isn't correct
2 Halted 0 ms 0 KB -