oj.uz

Submission #673818

# Submission time Handle Problem Language Result Execution time Memory
673818 2022-12-22T05:49:09 Z smartmonky Beautiful row (IZhO12_beauty) C++14
0 / 100
 284 ms 262144 KB 
#include <bits/stdc++.h>
 
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
 
using namespace std;
 
//void fp(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
const int N =  (1 << 21) + 1;
unsigned long long dp[N][21];
int a[21], bit[21], ter[21];
long long ful;

int getbits(int x){
	int res = 0;
	while(x > 0){
		res += x % 2;
		x >>= 1;
	}
	return res;
}
int getter(int x){
	int res = 0;
	while(x > 0){
		res += (x % 3 == 1);
		x /= 3;
	}
	return res;
}
 
main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n;
	cin >> n;
	for(int i = 1; i <= n; i++){
		ful += (1 << i);
		cin >> a[i];
		bit[i] = getbits(a[i]);
		ter[i] = getter(a[i]);
		dp[(1 << i)][i] = 1;
	}
	for(int i = 1; i < (1 << (n + 1)); i++){
		for(int j = 1; j <= n; j++){
			if(dp[i][j] == 0 ||  (i  & (1 << j)) == 0)continue;
				for(int k = 1; k  <= n; k++){
					if((i & (1 << k)) || i + (1 << k) > ful)continue;
					if(bit[k] == bit[j] || ter[k] == ter[j])
						dp[i + (1 << k)][k] += dp[i][j];
				}
		}
	}
	unsigned long long ans = 0;
	for(int i = 1;  i <= n; i++){
		ans += dp[ful][i];
	}
	cout << ans;
}

Compilation message

beauty.cpp:34:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   34 | main(){
      | ^~~~

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 9 ms 5504 KB Output is correct
12 Correct 7 ms 5652 KB Output is correct
13 Correct 38 ms 21800 KB Output is correct
14 Correct 173 ms 86400 KB Output is correct
15 Correct 160 ms 86480 KB Output is correct
16 Correct 173 ms 86428 KB Output is correct
17 Correct 191 ms 86392 KB Output is correct
18 Correct 149 ms 86492 KB Output is correct
19 Runtime error 284 ms 262144 KB Execution killed with signal 9
20 Halted 0 ms 0 KB -