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Submission #13348

# Submission time Handle Problem Language Result Execution time Memory
13348 2015-02-13T12:14:35 Z baneling100 Beautiful row (IZhO12_beauty) C++
60 / 100
 3000 ms 173116 KB 
#include <stdio.h>
#define N_MAX 20
#define BIT_MAX 1048575

int N, M=1, A[N_MAX+1], B[N_MAX+1][N_MAX+1];
long long D[N_MAX+1][BIT_MAX+1], Ans;

int binaryOne(int num) {

    int i, cnt=0;

    for(i=1 ; i<=num ; i<<=1)
        if(num&i)
            cnt++;
    return cnt;
}

int ternaryOne(int num) {

    int cnt=0;

    while(num) {
        if(num%3==1)
            cnt++;
        num/=3;
    }
    return cnt;
}

void bitMask(int x, int y) {

    int i;

    for(i=1 ; i<=N ; i++)
        if(B[x][i] && y&(1<<(i-1))) {
            if(!D[i][y-(1<<(x-1))])
                bitMask(i,y-(1<<(x-1)));
            D[x][y]+=D[i][y-(1<<(x-1))];
        }
}

int main(void) {

    int i, j;

    scanf("%d",&N);
    for(i=1 ; i<=N ; i++)
        scanf("%d",&A[i]);
    for(i=1 ; i<=N ; i++)
        for(j=1 ; j<=N ; j++)
            if(i!=j && (binaryOne(A[i])==binaryOne(A[j]) || ternaryOne(A[i])==ternaryOne(A[j])))
                B[i][j]=1;
    for(i=1 ; i<=N ; i++) {
        M<<=1;
        D[i][1<<(i-1)]=1;
    }
    M--;
    for(i=1 ; i<=N ; i++) {
        bitMask(i,M);
        Ans+=D[i][M];
    }
    printf("%lld",Ans);

    return 0;
}

Subtask #1
60.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 173116 KB Output is correct
2 Correct 0 ms 173116 KB Output is correct
3 Correct 0 ms 173116 KB Output is correct
4 Correct 0 ms 173116 KB Output is correct
5 Correct 0 ms 173116 KB Output is correct
6 Correct 0 ms 173116 KB Output is correct
7 Correct 0 ms 173116 KB Output is correct
8 Correct 0 ms 173116 KB Output is correct
9 Correct 0 ms 173116 KB Output is correct
10 Correct 0 ms 173116 KB Output is correct
11 Execution timed out 3000 ms 173112 KB Program timed out
12 Execution timed out 3000 ms 173112 KB Program timed out
13 Execution timed out 3000 ms 173112 KB Program timed out
14 Execution timed out 3000 ms 173112 KB Program timed out
15 Correct 546 ms 173116 KB Output is correct
16 Execution timed out 3000 ms 173112 KB Program timed out
17 Execution timed out 3000 ms 173112 KB Program timed out
18 Execution timed out 3000 ms 173112 KB Program timed out
19 Execution timed out 3000 ms 173112 KB Program timed out
20 Correct 2648 ms 173116 KB Output is correct