Submission #151011

#	Time	Username	Problem	Language	Result	Execution time	Memory
151011		JustInCase	FunctionCup Museum (FXCUP4_museum)	C++17	100 / 100	561 ms	18400 KiB

museum

#include <bits/stdc++.h>

#ifdef LOCAL
	#include "grader.cpp"
#else
	#include "museum.h"
#endif

#define count_similar_pairs CountSimilarPairs
#define int32_t int
#define int64_t long long

int64_t count_similar_pairs(std::vector< int32_t > a, std::vector< int32_t > b, std::vector< int32_t > c) {
	std::map< int32_t, int32_t > cntA, cntB, cntC;
	std::map< std::pair< int32_t, int32_t >, int32_t > cntAB, cntAC, cntBC;
	std::map< std::tuple< int32_t, int32_t, int32_t >, int32_t > cntABC;

	int32_t n = a.size();
	for(int32_t i = 0; i < n; i++) {
		cntA[a[i]]++;
		cntB[b[i]]++;
		cntC[c[i]]++;

		cntAB[{ a[i], b[i] }]++;
		cntAC[{ a[i], c[i] }]++;
		cntBC[{ b[i], c[i] }]++;
	
		cntABC[{ a[i], b[i], c[i] }]++;
	}

	int64_t ans = 0;
	for(auto &x : cntA) {
		ans += (int64_t) x.second * (x.second - 1) / 2;
	}
	for(auto &x : cntB) {
		ans += (int64_t) x.second * (x.second - 1) / 2;
	}
	for(auto &x : cntC) {
		ans += (int64_t) x.second * (x.second - 1) / 2;
	}

	for(auto &x : cntAB) {
		ans -= (int64_t) x.second * (x.second - 1) / 2;
	}
	for(auto &x : cntAC) {
		ans -= (int64_t) x.second * (x.second - 1) / 2;
	}
	for(auto &x : cntBC) {
		ans -= (int64_t) x.second * (x.second - 1) / 2;
	}

	for(auto &x : cntABC) {
		ans += (int64_t) x.second * (x.second - 1) / 2;
	}

	return ans;
}

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