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Submission #659084

# Submission time Handle Problem Language Result Execution time Memory
659084 2022-11-16T12:25:31 Z Trisanu_Das Beautiful row (IZhO12_beauty) C++17
100 / 100
 1052 ms 205604 KB 
#include <bits/stdc++.h>
using namespace std; 
     
long long n, m, a[25], dp[1<<21][25], ans, cnt[25], cnt1[25];
     
int main (){	
 	cin >> n;
   	for (int i = 0;i < n;i++) {
   		cin >> a[i];
   		cnt[i] = __builtin_popcount(a[i]);
   		m = a[i];
   		while (m){
   			if (m % 3 == 1) cnt1[i]++;
   			m /= 3;
   		}
   	}
   	for (int i = 0;i < n;i++) dp[1 << i][i] = 1;
   	for (int i = 0;i < (1 << n);i++)
   		for (int j = 0;j < n;j++)
   			for (int o = 0;o < n;o++)
   				if (!(i & 1<<o) && (cnt[j] == cnt[o] || cnt1[j] == cnt1[o]))
   					dp[i|(1<<o)][o] += dp[i][j];
   	for (int i = 0;i < n;i++) ans += dp[(1<<n) - 1][i];
   	cout << ans;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 436 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 476 KB Output is correct
10 Correct 1 ms 440 KB Output is correct
11 Correct 9 ms 3412 KB Output is correct
12 Correct 8 ms 3540 KB Output is correct
13 Correct 37 ms 13076 KB Output is correct
14 Correct 206 ms 51496 KB Output is correct
15 Correct 140 ms 51584 KB Output is correct
16 Correct 220 ms 51720 KB Output is correct
17 Correct 251 ms 51588 KB Output is correct
18 Correct 236 ms 51592 KB Output is correct
19 Correct 1052 ms 205604 KB Output is correct
20 Correct 645 ms 205484 KB Output is correct