Submission #968941

#	Time	Username	Problem	Language	Result	Execution time	Memory
968941		auslander	Beautiful row (IZhO12_beauty)	C++17	0 / 100	1 ms	348 KiB

beauty

#include <iostream>
#include <algorithm>
#include <math.h>
#include <string>
#include <iomanip>
#include <queue>
#include <stack>
#include <deque>
#include <set>
#include <map>
#include <vector>
#include <iterator>
using namespace std;

typedef long long ll;
typedef unsigned usg;

#define speed ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define multi int t; cin>>t; while(t--) solve()
#define single solve(); return 0
#define ratdig(x) cout << fixed << setprecision(x);
#define xfixdig(x) cout << setprecision(x);
#define rev(x) reverse(x.begin(), x.end())
#define all(x) x.begin(), x.end()

void yn(bool b)
{
	if (b)
	{
		cout << "YES\n";
		return;
	}
	cout << "NO\n";
}

ll gcd(ll a, ll b) {
	if (a == 0)
		return b;
	if (b == 0)
		return a;
	return gcd(b % a, a);
}

ll lcm(ll a, ll b)
{
	return (a * b) / gcd(a, b);
}

string to2(ll a, ll n = -1)
{
	string r = "";
	for (ll i = 0; (1 << i) <= a; i++)
	{
		char c = (((1 << i) & a) != 0) + '0';
		r += c;
	}
	if (a == 0)
	{
		r = "0";
	}
	if (n != -1)
	{
		for (int i = 0; i < n - r.size(); i++)
			r += '0';
	}
	rev(r);

	return r;
}

ll b2(ll a)
{
	ll r = 0;
	for (ll i = 0; (1 << i) <= a; i++)
	{
		ll c = (((1 << i) & a) != 0);
		r += c;
	}

	return r;
}

ll b3(ll a, ll n = -1)
{
	ll r = 0;
	ll y = 1;
	for (ll i = 0; y <= a; i++)
	{
		ll c = ((y & a) != 0);
		r += c;
		y *= 3;
	}
	
	return r;
}

ll binpow(ll a, ll b, ll mod = -1)
{
	ll ans = 1;
	while (b)
	{
		if ((b & 1) == 1)
		{
			ans *= a;
			if (mod != -1)
				ans %= mod;
		}
		b >>= 1;
		a *= a;
		if (mod != -1)
			a %= mod;
	}
	return ans;
}
ll arr[25], a2[25], a3[25];
ll a[25];

void solve()
{
	int m, n, i, j, k;
	cin >> n;
	for (i = 0; i < n; i++)
	{
		cin >> arr[i];
		a[i] = i;
		a2[i] = b2(arr[i]);
		a3[i] = b3(arr[i]);
	}
	ll res = 0;
	do {
		for (i = 1; i < n; i++)
		{
			if (a2[a[i]] != a2[a[i - 1]] && a3[a[i]] != a3[a[i - 1]])
			{
				res--;
				break;
			}
		}
		res++;
	} while (next_permutation(a, a + n));
	cout << res;
 }

int main()
{
	speed;
	single;
	multi;
	return 0;
} 

Compilation message (stderr)

beauty.cpp: In function 'std::string to2(ll, ll)':
beauty.cpp:63:21: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare]
   63 |   for (int i = 0; i < n - r.size(); i++)
      |                   ~~^~~~~~~~~~~~~~
beauty.cpp: In function 'void solve()':
beauty.cpp:120:6: warning: unused variable 'm' [-Wunused-variable]
  120 |  int m, n, i, j, k;
      |      ^
beauty.cpp:120:15: warning: unused variable 'j' [-Wunused-variable]
  120 |  int m, n, i, j, k;
      |               ^
beauty.cpp:120:18: warning: unused variable 'k' [-Wunused-variable]
  120 |  int m, n, i, j, k;
      |                  ^

• Subtask 1: 0 / 100