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답안 #1009693

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1009693 2024-06-27T20:36:33 Z vjudge1 시간이 돈 (balkan11_timeismoney) C++17
100 / 100
 750 ms 768 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define pii pair < ll, ll >
#define FIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
 
using namespace std;
 
struct Edge {
	ll a, b, t, m;
};
 
const ll N = 2e2+10, M = 1e4+10;
ll n, m;
Edge edges[M];
ll x, y;
 
ll par[N];
ll sz[N];
vector < pii > konfig;
ll msol = 1e18+7;
vector < pii > solkonfig;
 
int fn( int i ) {
	if(par[i] == i) return i;
	return par[i] = fn(par[i]);
}
 
void un( int a, int b ) {
	a = fn(a); b = fn(b);
	if(a != b) {
		if(sz[a] > sz[b]) swap(a, b);
		par[a] = b;
		sz[a] += sz[b];
	}
	return;
}
 
void res( void ) {
	for(ll i = 0; i < n; i++) {
		par[i] = i;
		sz[i] = 1;
	}
	konfig.clear();
}
 
bool check_un( int a, int b ) {
	return (fn(a) == fn(b));
}
 
pii mst() {
	ll tout = 0;
	ll mout = 0;
	res();
	int tot = 0;
	for(ll i = 0; i < m; i++) {
		if(!check_un(edges[i].a, edges[i].b)) {
			un(edges[i].a, edges[i].b);
			tout += edges[i].t;
			mout += edges[i].m;
			tot++;
			konfig.pb(mp(edges[i].a, edges[i].b));
		}
	}
	if(tout*mout < msol) {
		msol = tout*mout;
		solkonfig = konfig;
	}
	return mp(tout, mout);
}
 
bool s_func_t( Edge a, Edge b ) {
	if(b.t > a.t) return 1;
	if(b.t < a.t) return 0;
	if(b.m > a.m) return 1;
	return 0;
}
 
bool s_func_m( Edge a, Edge b ) {
	if(b.m > a.m) return 1;
	if(b.m < a.m) return 0;
	if(b.t > a.t) return 1;
	return 0;
}
 
bool s_func_xy( Edge a, Edge b ) {
	return ((b.t * x) + (b.m * y) > (a.t * x) + (a.m * y)) ? 1 : 0;
}
 
inline pii daq( pii a, pii b ) {
	y = b.F - a.F;
	x = a.S - b.S;
	sort(edges, edges + m, s_func_xy);
	pii temp1;
	pii temp2;
	pii out = mst();
	if(out.F*x+out.S*y == a.F*x+a.S*y || out.F*x+out.S*y == b.F*x+b.S*y) {
		if(a.F * a.S < b.F * b.S) return a;
		else return b;
	}
	temp1 = daq(a, out);
	temp2 = daq(out, b);
	if(temp1.F * temp1.S < out.F * out.S) out = temp1;
	if(temp2.F * temp2.S < out.F * out.S) out = temp2;
	
	return out;
}
 
int main( void ) {
	
	FIO
	cin >> n >> m;
	for(int i = 0; i < m; i++) {
		cin >> edges[i].a >> edges[i].b >> edges[i].t >> edges[i].m;
	}
	sort(edges, edges + m, s_func_t);
	pii temp1 = mst();
	sort(edges, edges + m, s_func_m);
	pii temp2 = mst();
	pii sol = daq(temp1, temp2);
	cout << sol.F << " " << sol.S << "\n";
	for(int i = 0; i < (int) solkonfig.size(); i++) {
		cout << solkonfig[i].F << " " << solkonfig[i].S << "\n";
	}
	
	return 0;
}

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 2 ms 344 KB Output is correct
8 Correct 4 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 6 ms 348 KB Output is correct
15 Correct 4 ms 348 KB Output is correct
16 Correct 91 ms 348 KB Output is correct
17 Correct 91 ms 348 KB Output is correct
18 Correct 85 ms 348 KB Output is correct
19 Correct 750 ms 600 KB Output is correct
20 Correct 749 ms 768 KB Output is correct