제출 #65553

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
65553		qkxwsm	시간이 돈 (balkan11_timeismoney)	C++17	85 / 100	2068 ms	1244 KiB

timeismoney

/*
PROG: source
LANG: C++11
    _____
  .'     '.
 /  0   0  \
|     ^     |
|  \     /  |
 \  '---'  /
  '._____.'
*/
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>

using namespace std;
using namespace __gnu_pbds;

struct chash
{
        int operator()(int x) const
        {
                x ^= (x >> 20) ^ (x >> 12);
                return x ^ (x >> 7) ^ (x >> 4);
        }
        int operator()(long long x) const
        {
                return x ^ (x >> 32);
        }
};

template<typename T> using orderedset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename T, typename U> using hashtable = gp_hash_table<T, U, chash>;

template<class T>
void readi(T &x)
{
	T input = 0;
	bool negative = false;
	char c = ' ';
	while (c < '-')
        {
		c = getchar();
	}
	if (c == '-')
	{
		negative = true;
		c = getchar();
	}
	while (c >= '0')
	{
		input = input * 10 + (c - '0');
		c = getchar();
	}
	if (negative)
	{
		input = -input;
	}
	x = input;
}
template<class T>
void printi(T output)
{
	if (output == 0)
	{
		putchar('0');
		return;
	}
	if (output < 0)
	{
		putchar('-');
		output = -output;
	}
	int aout[20];
	int ilen = 0;
	while(output)
	{
		aout[ilen] = ((output % 10));
		output /= 10;
		ilen++;
	}
	for (int i = ilen - 1; i >= 0; i--)
	{
		putchar(aout[i] + '0');
	}
	return;
}
template<class T>
void ckmin(T &a, T b)
{
	a = min(a, b);
}
template<class T>
void ckmax(T &a, T b)
{
	a = max(a, b);
}
template<class T, class U>
T normalize(T x, U mod = 1000000007)
{
	return (((x % mod) + mod) % mod);
}
long long randomizell(long long mod)
{
	return ((1ll << 45) * rand() + (1ll << 30) * rand() + (1ll << 15) * rand() + rand()) % mod;
}
int randomize(int mod)
{
	return ((1ll << 15) * rand() + rand()) % mod;
}

#define y0 ___y0
#define y1 ___y1
#define MP make_pair
#define MT make_tuple
#define PB push_back
#define PF push_front
#define LB lower_bound
#define UB upper_bound
#define fi first
#define se second
#define debug(x) cerr << #x << " = " << x << endl;

const long double PI = 4.0 * atan(1.0);
const long double EPS = 1e-10;

#define MAGIC 347
#define SINF 10007
#define CO 1000007
#define INF 1000000007
#define BIG 1000000931
#define LARGE 1696969696967ll
#define GIANT 2564008813937411ll
#define LLINF 2696969696969696969ll
#define MAXN 213

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<pll, pii> ppp;
typedef pair<ld, ld> pdd;

int N, M;
vector<ppp> edges;
vector<pii> ret;
ll r1, r2;
int dsu[MAXN];
ll ans = LLINF, bt, bc;

int find_parent(int u)
{
        return (u == dsu[u] ? u : dsu[u] = find_parent(dsu[u]));
}
bool merge(int u, int v)
{
        u = find_parent(u);
        v = find_parent(v);
        if (u == v) return false;
        dsu[u] = v;
        return true;
}
bool cmp(ppp x, ppp y)
{
        return r1 * x.fi.fi + r2 * x.fi.se < r1 * y.fi.fi + r2 * y.fi.se;
}
void test(ll c1, ll c2)
{
        r1 = c1;
        r2 = c2;
        sort(edges.begin(), edges.end(), cmp);
        for (int i = 0; i < N; i++)
        {
                dsu[i] = i;
        }
        ll t = 0, c = 0;
        vector<pii> e;
        for (int i = 0; i < M; i++)
        {
                if (merge(edges[i].se.fi, edges[i].se.se))
                {
                        t += edges[i].fi.fi;
                        c += edges[i].fi.se;
                        e.PB(edges[i].se);
                }
        }
        if (t * c < ans)
        {
                ret = e;
                ans = t * c;
                bt = t;
                bc = c;
        }
        return;
}
int32_t main()
{
	ios_base::sync_with_stdio(0);
	srand(time(0));
	//	cout << fixed << setprecision(10);
	//	cerr << fixed << setprecision(10);
	if (fopen("input.in", "r"))
	{
		freopen ("input.in", "r", stdin);
		freopen ("output.out", "w", stdout);
	}
        cin >> N >> M;
        for (int i = 0; i < M; i++)
        {
                int u, v; ll t, c;
                cin >> u >> v >> t >> c;
                edges.PB({{t, c}, {u, v}});
        }
        test(0, 1);
        test(1, 0);
        for (int i = 1; i <= 69; i++)
        {
                for (int j = 1; j <= 69; j++)
                {
                        if (__gcd(i, j) != 1)
                        {
                                continue;
                        }
                        test(i, j);
                }
        }
        cout << bt << ' ' << bc << '\n';
        for (pii x : ret)
        {
                cout << x.fi << ' ' << x.se << '\n';
        }
	//	cerr << "time elapsed = " << (clock() / (CLOCKS_PER_SEC / 1000)) << " ms" << endl;
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

timeismoney.cpp: In function 'int32_t main()':
timeismoney.cpp:204:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen ("input.in", "r", stdin);
   ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
timeismoney.cpp:205:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen ("output.out", "w", stdout);
   ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 85 / 100