oj.uz

답안 #113951

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
113951 2019-05-29T09:44:05 Z Kastanda 시간이 돈 (balkan11_timeismoney) C++11
95 / 100
 639 ms 524 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 < 500; i++)
        rt = i, MST();
    rt = 300;
    for (int i = 0; i < 500; 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
95.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 384 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 3 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 18 ms 256 KB Output is correct
6 Correct 15 ms 376 KB Output is correct
7 Correct 109 ms 384 KB Output is correct
8 Correct 425 ms 524 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 256 KB Output is correct
11 Correct 3 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 23 ms 384 KB Output is correct
15 Correct 20 ms 384 KB Output is correct
16 Correct 115 ms 476 KB Output is correct
17 Correct 111 ms 384 KB Output is correct
18 Correct 112 ms 384 KB Output is correct
19 Correct 638 ms 520 KB Output is correct
20 Incorrect 639 ms 524 KB Output isn't correct