oj.uz

답안 #113950

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
113950 2019-05-29T09:43:02 Z Kastanda 시간이 돈 (balkan11_timeismoney) C++11
95 / 100
 398 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();
    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 7 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 3 ms 256 KB Output is correct
5 Correct 12 ms 384 KB Output is correct
6 Correct 10 ms 256 KB Output is correct
7 Correct 53 ms 404 KB Output is correct
8 Correct 258 ms 520 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 3 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 4 ms 256 KB Output is correct
14 Correct 15 ms 384 KB Output is correct
15 Correct 13 ms 384 KB Output is correct
16 Correct 69 ms 384 KB Output is correct
17 Correct 70 ms 384 KB Output is correct
18 Correct 70 ms 504 KB Output is correct
19 Correct 398 ms 512 KB Output is correct
20 Incorrect 390 ms 632 KB Output isn't correct