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답안 #208020

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
208020 2020-03-09T19:23:04 Z arnold518 시간이 돈 (balkan11_timeismoney) C++14
40 / 100
 513 ms 632 KB 
#include <bits/stdc++.h>
using namespace std;

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

const int MAXN = 200;
const int MAXM = 1e4;
const ll INF = 1e18;

struct Edge
{
	int u, v, x, y;
};

int N, M;
Edge E[MAXM+10];
pair<ll, pll> ans={INF, {0, 0}};

struct Point { ll x, y; };
Point operator - (const Point &p, const Point &q) { return {p.x-q.x, p.y-q.y}; }
bool operator == (const Point &p, const Point &q) { return p.x==q.x && p.y==q.y; }

struct UF
{
	int par[MAXN+10];
	void init() { for(int i=0; i<=N; i++) par[i]=i; }
	int Find(int x) { return x==par[x] ? x : par[x]=Find(par[x]); }
	void Union(int x, int y) { x=Find(x); y=Find(y); par[x]=y; }
} uf;

Point f(ll a, ll b, bool print)
{
	int i, j;

	Point r={0, 0};
	sort(E+1, E+M+1, [&](const Edge &p, const Edge &q) { return p.x*b+p.y*a<q.x*b+q.y*a; });
	uf.init();

	for(i=1; i<=M; i++)
	{
		if(uf.Find(E[i].u)!=uf.Find(E[i].v))
		{
			if(print) printf("%d %d\n", E[i].u-1, E[i].v-1);
			uf.Union(E[i].u, E[i].v);
			r.x+=E[i].x;
			r.y+=E[i].y;
		}
	}
	return r;
}

void dnc(Point p, Point q)
{
	int i, j;
	if(p==q) return;

	ll a=q.x-p.x, b=p.y-q.y;
	Point r=f(a, b, 0);
	ans=min(ans, {r.x*r.y, {a, b}});

	Point v1=p-r, v2=q-r;
	if(p==r || q==r || v1.x*v2.y==v1.y*v2.x) return;
	dnc(p, r);
	dnc(r, q);
}

int main()
{
	int i, j;

	scanf("%d%d", &N, &M);
	for(i=1; i<=M; i++) scanf("%d%d%d%d", &E[i].u, &E[i].v, &E[i].x, &E[i].y), E[i].u++, E[i].v++;

	Point p=f(0, 1, 0), q=f(1, 0, 0);
	dnc(p, q);

	Point r=f(ans.second.first, ans.second.second, 0);
	printf("%lld %lld\n", r.x, r.y);
	f(ans.second.first, ans.second.second, 1);
}

Compilation message

timeismoney.cpp: In function 'Point f(ll, ll, bool)':
timeismoney.cpp:35:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
timeismoney.cpp: In function 'void dnc(Point, Point)':
timeismoney.cpp:56:6: warning: unused variable 'i' [-Wunused-variable]
  int i, j;
      ^
timeismoney.cpp:56:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
timeismoney.cpp: In function 'int main()':
timeismoney.cpp:71:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
timeismoney.cpp:73:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~
timeismoney.cpp:74:85: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1; i<=M; i++) scanf("%d%d%d%d", &E[i].u, &E[i].v, &E[i].x, &E[i].y), E[i].u++, E[i].v++;
                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~

Subtask #1
40.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Incorrect 5 ms 248 KB Output isn't correct
3 Incorrect 5 ms 256 KB Output isn't correct
4 Incorrect 5 ms 376 KB Output isn't correct
5 Incorrect 5 ms 248 KB Output isn't correct
6 Incorrect 5 ms 376 KB Output isn't correct
7 Incorrect 6 ms 376 KB Output isn't correct
8 Incorrect 10 ms 504 KB Output isn't correct
9 Incorrect 5 ms 376 KB Output isn't correct
10 Incorrect 5 ms 256 KB Output isn't correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Incorrect 5 ms 256 KB Output isn't correct
14 Correct 9 ms 256 KB Output is correct
15 Incorrect 8 ms 256 KB Output isn't correct
16 Correct 66 ms 376 KB Output is correct
17 Correct 68 ms 376 KB Output is correct
18 Correct 68 ms 504 KB Output is correct
19 Correct 499 ms 504 KB Output is correct
20 Incorrect 513 ms 632 KB Output isn't correct