제출 #148591

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
148591		koosaga fan club (#200)	함수컵 박물관 (FXCUP4_museum)	C++17	100 / 100	552 ms	18404 KiB

museum

#include <bits/stdc++.h>
#include "museum.h"

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<int, pii> pipii;

long long CountSimilarPairs(std::vector<int> B, std::vector<int> T, std::vector<int> G) {
	map<int, ll> b, t, g;
	map<pii, ll> bt, bg, tg;
	map<pipii, ll> btg;
	int n = B.size();
	ll ret = 0;
	for(int i = 0; i < B.size(); i++) {
		b[B[i]]++;
		t[T[i]]++;
		g[G[i]]++;
		bt[{B[i], T[i]}]++;
		bg[{B[i], G[i]}]++;
		tg[{T[i], G[i]}]++;
		btg[{B[i], {T[i], G[i]}}]++;
	}
	for(auto out: b) ret += out.second * (out.second-1) / 2;
	for(auto out: t) ret += out.second * (out.second-1) / 2;
	for(auto out: g) ret += out.second * (out.second-1) / 2;
	for(auto out: bt) ret -= out.second * (out.second-1) / 2;
	for(auto out: bg) ret -= out.second * (out.second-1) / 2;
	for(auto out: tg) ret -= out.second * (out.second-1) / 2;
	for(auto out: btg) ret += out.second * (out.second-1) / 2;
	return ret;
}

컴파일 시 표준 에러 (stderr) 메시지

museum.cpp: In function 'long long int CountSimilarPairs(std::vector<int>, std::vector<int>, std::vector<int>)':
museum.cpp:16:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < B.size(); i++) {
                 ~~^~~~~~~~~~
museum.cpp:14:6: warning: unused variable 'n' [-Wunused-variable]
  int n = B.size();
      ^

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