oj.uz

Submission #13913

# Submission time Handle Problem Language Result Execution time Memory
13913 2015-04-22T10:08:03 Z gs14004 경비원 (GA8_guard) C++14
13 / 100
 74 ms 1372 KB 
#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;
const int mod = 1e9 + 7;

int n;
int pr[15] = {2,3,5,7,11,13,17,19,23,29,31,37,41,43,47};

struct num{
    int val;
    int lowbit;
    int rem;
}a[2005];

bool cmp(num a, num b){return a.rem < b.rem;}

void input(){
    scanf("%d",&n);
    for (int i=1; i<=n; i++) {
        scanf("%d",&a[i].val);
        int t = a[i].val;
        for (int j=0; j<15; j++) {
            while(t % pr[j] == 0){
                a[i].lowbit |= 1<<j;
                t /= pr[j];
            }
        }
        a[i].rem = t;
    }
    sort(a+1,a+n+1,cmp);
}

int dp[2][1<<15];

int main(){
    input();
    dp[0][0] = 1;
    int back[1<<15];
    for (int i=1; i<=n; i++) {
        if(a[i].rem == 1){
            for (int j=0; j<(1<<15); j++) {
                dp[i%2][j] = 0;
                if((a[i].lowbit & ~j) == 0){
                    dp[i%2][j] = dp[(i-1)%2][j ^ a[i].lowbit];
                    dp[i%2][j] %= mod;
                }
                dp[i%2][j] += dp[(i-1)%2][j];
                dp[i%2][j] %= mod;
            }
        }
        else{
            if(a[i].rem != a[i-1].rem){
                memcpy(back,dp[i-1],sizeof(back));
            }
            for (int j=0; j<(1<<15); j++) {
                dp[i%2][j] = 0;
                if((a[i].lowbit & ~j) == 0){
                    dp[i%2][j] = back[j ^ a[i].lowbit];
                    dp[i%2][j] %= mod;
                }
                dp[i%2][j] += dp[(i-1)%2][j];
                dp[i%2][j] %= mod;
            }
        }
    }
    int ret = mod - n - 1;
    for (int i=0; i<(1<<15); i++) {
        ret += dp[n%2][i];
        ret %= mod;
    }
    printf("%d",ret);
}

Subtask #1
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1372 KB Output is correct
2 Correct 0 ms 1368 KB Output is correct
3 Runtime error 0 ms 1368 KB SIGSEGV Segmentation fault
4 Halted 0 ms 0 KB -

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1372 KB Output is correct
2 Correct 0 ms 1372 KB Output is correct
3 Correct 0 ms 1368 KB Output is correct
4 Correct 0 ms 1368 KB Output is correct
5 Correct 0 ms 1364 KB Output is correct
6 Correct 0 ms 1368 KB Output is correct
7 Correct 0 ms 1372 KB Output is correct
8 Correct 0 ms 1368 KB Output is correct
9 Correct 3 ms 1368 KB Output is correct
10 Correct 3 ms 1368 KB Output is correct
11 Correct 3 ms 1368 KB Output is correct
12 Correct 3 ms 1368 KB Output is correct
13 Correct 4 ms 1368 KB Output is correct
14 Correct 4 ms 1368 KB Output is correct
15 Correct 4 ms 1368 KB Output is correct
16 Correct 4 ms 1372 KB Output is correct
17 Correct 4 ms 1372 KB Output is correct
18 Correct 4 ms 1368 KB Output is correct
19 Correct 5 ms 1368 KB Output is correct
20 Correct 5 ms 1372 KB Output is correct
21 Correct 5 ms 1372 KB Output is correct
22 Correct 5 ms 1368 KB Output is correct
23 Correct 5 ms 1368 KB Output is correct
24 Correct 6 ms 1368 KB Output is correct
25 Correct 6 ms 1364 KB Output is correct
26 Correct 6 ms 1372 KB Output is correct
27 Correct 3 ms 1368 KB Output is correct
28 Correct 6 ms 1368 KB Output is correct
29 Correct 6 ms 1372 KB Output is correct
30 Correct 7 ms 1372 KB Output is correct
31 Correct 7 ms 1368 KB Output is correct
32 Correct 7 ms 1368 KB Output is correct
33 Correct 7 ms 1368 KB Output is correct
34 Correct 8 ms 1372 KB Output is correct
35 Correct 8 ms 1368 KB Output is correct
36 Correct 8 ms 1368 KB Output is correct
37 Correct 6 ms 1364 KB Output is correct
38 Correct 9 ms 1368 KB Output is correct
39 Correct 8 ms 1364 KB Output is correct
40 Correct 9 ms 1368 KB Output is correct
41 Correct 8 ms 1372 KB Output is correct
42 Correct 9 ms 1368 KB Output is correct
43 Correct 6 ms 1372 KB Output is correct

Subtask #3
0.0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 1368 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 27.0

# Verdict Execution time Memory Grader output
1 Runtime error 53 ms 1364 KB SIGSEGV Segmentation fault
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 36.0

# Verdict Execution time Memory Grader output
1 Runtime error 74 ms 1360 KB SIGSEGV Segmentation fault
2 Halted 0 ms 0 KB -