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Submission #917104

# Submission time Handle Problem Language Result Execution time Memory
917104 2024-01-27T07:49:54 Z goduadzesaba Beautiful row (IZhO12_beauty) C++17
100 / 100
 1006 ms 205532 KB 
#include <bits/stdc++.h>
using namespace std;
long long d[(1<<20)+5][25],ans;
int a2[25],a3[25],x,i,j,bm,n;
int main(){
    cin>>n;
    for (i=0; i<n; i++){
        cin>>x; d[1<<i][i]=1;
        a2[i]=__builtin_popcount(x);
        while (x>0){
            if (x%3==1) a3[i]++;
            x/=3;
        }
    }
    //for (i=0; i<n; i++) cout<<a2[i]<<' '<<a3[i]<<'\n';
    for (bm=0; bm<(1<<n); bm++)
        for (i=0; i<n; i++)
            for (j=0; j<n; j++)
                if ((1<<i)&bm && (1<<j)&bm && i!=j)
                    if (a2[i]==a2[j] || a3[i]==a3[j])
                        d[bm][i]+=d[bm-(1<<i)][j];
    for (i=0; i<n; i++)
        ans+=d[(1<<n)-1][i];
    cout<<ans;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 10 ms 4700 KB Output is correct
12 Correct 9 ms 4732 KB Output is correct
13 Correct 48 ms 15220 KB Output is correct
14 Correct 220 ms 51844 KB Output is correct
15 Correct 195 ms 51832 KB Output is correct
16 Correct 217 ms 51892 KB Output is correct
17 Correct 219 ms 51896 KB Output is correct
18 Correct 220 ms 51840 KB Output is correct
19 Correct 1006 ms 205388 KB Output is correct
20 Correct 938 ms 205532 KB Output is correct