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Submission #922679

# Submission time Handle Problem Language Result Execution time Memory
922679 2024-02-06T01:25:03 Z thunopro Beautiful row (IZhO12_beauty) C++14
100 / 100
 957 ms 164620 KB 
//Just try and the idea will come!
#include<bits/stdc++.h>
#define int long long int
using namespace std;
int n,i,a[20],dp[1048576][20],ans,j,tri[20],bin[20],mask;
main(){
    scanf("%lld",&n);
    for(;i<n;i++){
        scanf("%lld",&a[i]);
        dp[1<<i][i]=1;
        bin[i]=__builtin_popcount(a[i]);
        mask=a[i];
        while(mask){
            if(mask%3==1)tri[i]++;
            mask/=3;
        }
    }
    for(mask=0;mask<(1<<n);mask++)
    for(i=0;i<n;i++)
    if(mask&(1<<i))
    for(j=0;j<n;j++)
    if(i!=j)
    if(mask&(1<<j)&&(tri[i]==tri[j]||bin[i]==bin[j]))dp[mask][i]+=dp[mask^(1<<i)][j];
    for(i=0;i<n;i++)ans+=dp[(1<<n)-1][i];
    printf("%lld",ans);
}

Compilation message

beauty.cpp:6:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    6 | main(){
      | ^~~~
beauty.cpp: In function 'int main()':
beauty.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     scanf("%lld",&n);
      |     ~~~~~^~~~~~~~~~~
beauty.cpp:9:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |         scanf("%lld",&a[i]);
      |         ~~~~~^~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 600 KB Output is correct
11 Correct 9 ms 4700 KB Output is correct
12 Correct 9 ms 4700 KB Output is correct
13 Correct 42 ms 10852 KB Output is correct
14 Correct 200 ms 41344 KB Output is correct
15 Correct 193 ms 41556 KB Output is correct
16 Correct 204 ms 41592 KB Output is correct
17 Correct 198 ms 41552 KB Output is correct
18 Correct 202 ms 41556 KB Output is correct
19 Correct 957 ms 164612 KB Output is correct
20 Correct 909 ms 164620 KB Output is correct