oj.uz

답안 #928365

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
928365 2024-02-16T09:13:55 Z Kripton 시간이 돈 (balkan11_timeismoney) C++17
100 / 100
 911 ms 604 KB 
#include <bits/stdc++.h>
using namespace std;

struct mazan{
    int x, y, c, t;
}much[10001];

long double x;
const long double eps = 1e-9;

bool cmp(mazan a, mazan b)
{
    return x * a.c + (1.00 - x) * a.t < x * b.c + (1.00 - x) * b.t - eps;
}

int tata[201], sz[201];

int papa(int nod)
{
    if(tata[nod] == nod)
        return nod;
    return tata[nod] = papa(tata[nod]);
}

int sumT, sumC;
pair <int, int> afis[201], acum[201];
int cnt1;

void join(int a, int b, int c, int t)
{
    int ra = papa(a), rb = papa(b);
    if(ra == rb)
        return;
    if(sz[ra] < sz[rb])
        swap(ra, rb);
    tata[rb] = ra;
    sz[ra] += sz[rb];
    sumC += c;
    sumT += t;
    acum[++cnt1] = {a, b};
}

int main()
{
#ifdef HOME
    freopen("test.in", "r", stdin);
    freopen("test.out", "w", stdout);
#endif // HOME
    int n, m;
    cin >> n >> m;
    for(int i = 1; i <= m; i++)
        cin >> much[i].x >> much[i].y >> much[i].c >> much[i].t;
    long double BULAN = (1.00 / (1 << 10));
    long long min1 = LLONG_MAX;
    int afisT, afisC;
    for(x = 0; x < 1 - eps; x += BULAN)
    {
        sumT = sumC = 0;
        cnt1 = 0;
        sort(much + 1, much + m + 1, cmp);
        for(int i = 0; i < n; i++)
        {
            tata[i] = i;
            sz[i] = 0;
        }
        for(int i = 1; i <= m; i++)
            join(much[i].x, much[i].y, much[i].c, much[i].t);
        if(1LL * sumT * sumC < min1)
        {
            min1 = 1LL * sumT * sumC;
            afisT = sumT;
            afisC = sumC;
            for(int i = 1; i < n; i++)
                afis[i] = acum[i];
        }
    }
    cout << afisC << " " << afisT << '\n';
    for(int i = 1; i < n; i++)
        cout << afis[i].first << " " << afis[i].second << '\n';
    return 0;
}

Compilation message

timeismoney.cpp: In function 'int main()':
timeismoney.cpp:77:22: warning: 'afisC' may be used uninitialized in this function [-Wmaybe-uninitialized]
   77 |     cout << afisC << " " << afisT << '\n';
      |                      ^~~
timeismoney.cpp:77:38: warning: 'afisT' may be used uninitialized in this function [-Wmaybe-uninitialized]
   77 |     cout << afisC << " " << afisT << '\n';
      |                                      ^~~~

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Correct 3 ms 348 KB Output is correct
5 Correct 18 ms 348 KB Output is correct
6 Correct 20 ms 604 KB Output is correct
7 Correct 103 ms 444 KB Output is correct
8 Correct 531 ms 568 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 3 ms 348 KB Output is correct
13 Correct 3 ms 348 KB Output is correct
14 Correct 27 ms 424 KB Output is correct
15 Correct 20 ms 344 KB Output is correct
16 Correct 138 ms 348 KB Output is correct
17 Correct 139 ms 452 KB Output is correct
18 Correct 141 ms 344 KB Output is correct
19 Correct 911 ms 596 KB Output is correct
20 Correct 907 ms 572 KB Output is correct