oj.uz

답안 #113957

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
113957 2019-05-29T09:50:57 Z Kastanda 시간이 돈 (balkan11_timeismoney) C++11
100 / 100
 1269 ms 632 KB 
#include<bits/stdc++.h>
using namespace std;
struct Edge {int a, b, c, t;};
const int N = 205, M = 10004;
int n, m, rc, rt, smc, smt, P[N];
Edge E[M], R[N];
int Find(int v)
{
    return (P[v] < 0 ? v : (P[v] = Find(P[v])));
}
inline bool CMP(Edge e1, Edge e2)
{
    return (e1.c * rc + e1.t * rt < e2.c * rc + e2.t * rt);
}
inline void MST()
{
    int _smc = 0, _smt = 0;
    vector < Edge > vec;
    sort(E, E + m, CMP);
    memset(P, -1, sizeof(P));
    for (int i = 0; i < m; i++)
        if (Find(E[i].a) != Find(E[i].b))
        {
            P[Find(E[i].a)] = Find(E[i].b);
            _smc += E[i].c;
            _smt += E[i].t;
            vec.push_back(E[i]);
        }
    if (1LL * smc * smt > 1LL * _smc * _smt)
    {
        smc = _smc; smt = _smt;
        for (int i = 0; i < n - 1; i++)
            R[i] = vec[i];
    }
}
int main()
{
    scanf("%d%d", &n, &m);
    for (int i = 0; i < m; i++)
    {
        int a, b, c, d;
        scanf("%d%d%d%d", &a, &b, &c, &d);
        E[i] = {a, b, c, d};
    }
    smc = smt = M * N;
    rc = 300;
    for (int i = 0; i < 300; i++)
        rt = i, MST();
    rt = 300;
    for (int i = 0; i < 300; i++)
        rc = i, MST();
    rc = 3;
    for (int i = 0; i < 800; i++)
        rt = i, MST();
    rt = 3;
    for (int i = 0; i < 800; i++)
        rc = i, MST();
    printf("%d %d\n", smc, smt);
    for (int i = 0; i < n - 1; i++)
        printf("%d %d\n", R[i].a, R[i].b);
    return 0;
}

Compilation message

timeismoney.cpp: In function 'int main()':
timeismoney.cpp:38:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~
timeismoney.cpp:42:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d%d", &a, &b, &c, &d);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 8 ms 256 KB Output is correct
5 Correct 36 ms 384 KB Output is correct
6 Correct 31 ms 384 KB Output is correct
7 Correct 187 ms 384 KB Output is correct
8 Correct 906 ms 632 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 8 ms 256 KB Output is correct
13 Correct 8 ms 384 KB Output is correct
14 Correct 41 ms 408 KB Output is correct
15 Correct 34 ms 384 KB Output is correct
16 Correct 229 ms 504 KB Output is correct
17 Correct 216 ms 504 KB Output is correct
18 Correct 220 ms 504 KB Output is correct
19 Correct 1269 ms 512 KB Output is correct
20 Correct 1268 ms 512 KB Output is correct