Submission #149776

#	Time	Username	Problem	Language	Result	Execution time	Memory
149776		20190901 (#200)	FunctionCup Museum (FXCUP4_museum)	C++17	0 / 100	6 ms	384 KiB

museum

#include "museum.h"
#include <vector>
#include <set>

using namespace std;

using ll = long long;

int arr1[101];
int arr2[101];
int arr3[101];
ll fac[101];

ll CountSimilarPairs(vector<int> B, vector<int> T, vector<int> G)
{
	fac[0] = 1;
	for (int i = 1; i < 101; i++)
		fac[i] = fac[i - 1] * i;

	ll ans = 0;
	int n = (int)B.size();
	for (int i = 0; i < n; i++)
		arr1[B[i]]++;

	for (int i = 0; i < n; i++)
		arr2[T[i]]++;

	for (int i = 0; i < n; i++)
		arr3[G[i]]++;

	for (int i = 0; i < 101; i++)
		if (arr1[i] > 1)
			ans += fac[arr1[i]] / 2;

	for (int i = 0; i < 101; i++)
		if (arr2[i] > 1)
			ans += fac[arr2[i]] / 2;

	for (int i = 0; i < 101; i++)
		if (arr3[i] > 1)
			ans += fac[arr3[i]] / 2;

	set<pair<int, int>> s;
	for (int i = 0; i < n; i++)
		s.insert({ B[i], T[i] });
	ans -= n - (int)s.size();

	s.clear();
	for (int i = 0; i < n; i++)
		s.insert({ G[i], T[i] });
	ans -= n - (int)s.size();

	s.clear();
	for (int i = 0; i < n; i++)
		s.insert({ B[i], G[i] });
	ans -= n - (int)s.size();

	set<pair<int, pair<int, int>>> s2;
	for (int i = 0; i < n; i++)
		s2.insert({ B[i], { T[i], G[i]} });
	ans += 2 * (n - (int)s2.size());

	return ans;
}

• Subtask 1: 0 / 27
• Subtask 2: 0 / 73