Create 19-Museum.cpp

Author: tmwilliamlin168

FunctionCup/19-Museum.cpp

@@ -0,0 +1,15 @@
+#include "museum.h"
+#include <bits/stdc++.h>
+using namespace std;
+
+long long CountSimilarPairs(vector<int> b, vector<int> t, vector<int> g) {
+	long long ans=0;
+	for(int i=1; i<8; ++i) {
+		unordered_map<int, int> mp;
+		for(int j=0; j<b.size(); ++j) {
+			int k=((i&1?b[j]:0)*101+(i&2?t[j]:0))*101+(i&4?g[j]:0);
+			ans+=(mp[k]++)*(__builtin_popcount(i)%2*2-1);
+		}
+	}
+	return ans;
+}