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답안 #530893

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
530893 2022-02-27T04:56:50 Z ToroTN 꿈 (IOI13_dreaming) C++14
47 / 100
 79 ms 9668 KB 
#include<bits/stdc++.h>
using namespace std;
#include "dreaming.h"
int mx1=-1e9,mx2=-1e9,sum,val,n,m,l,u_i,v_i,w_i,d1[100005],d2[100005],u,y,ans=1e9,cost,mx,p[100005],lst,st,md,ed,sup,suck=-1e9;
vector<pair<int,int> > v[100005];
vector<int> path,g;
queue<int> q;
void bfs(int x)
{
    q.push(x);
    d1[x]=0;
    mx=-1;
    while(!q.empty())
    {
        u=q.front();
        q.pop();
        if(d1[u]>mx)
        {
            mx=d1[u];
            x=u;
        }
        for(int i=0;i<v[u].size();i++)
        {
            y=v[u][i].first;
            cost=v[u][i].second;
            if(d1[y]==-1)
            {
                d1[y]=d1[u]+cost;
                q.push(y);
            }
        }
    }
    mx=-1;
    d2[x]=0;
    p[x]=0;
    q.push(x);
    while(!q.empty())
    {
        u=q.front();
        q.pop();
        if(d2[u]>mx)
        {
            mx=d2[u];
            lst=u;
        }
        for(int i=0;i<v[u].size();i++)
        {
            y=v[u][i].first;
            cost=v[u][i].second;
            if(d2[y]==-1)
            {
                p[y]=u;
                d2[y]=d2[u]+cost;
                q.push(y);
            }
        }
    }
    path.clear();
    g.clear();
    while(1)
    {
        if(lst==0)
        {
            break;
        }
        path.push_back(lst);
        if(p[lst]!=0)
        {
            g.push_back(d2[lst]-d2[p[lst]]);
        }
        lst=p[lst];
    }
}
int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
    n=N;
    m=M;
    l=L;
    for(int i=0;i<m;i++)
    {
        u_i=A[i]+1;
        v_i=B[i]+1;
        w_i=T[i];
        v[u_i].push_back({v_i,w_i});
        v[v_i].push_back({u_i,w_i});
    }
    memset(d1,-1,sizeof d1);
    memset(d2,-1,sizeof d2);
    for(int i=1;i<=n;i++)
    {
        if(d1[i]==-1)
        {
            bfs(i);
            /*for(int j=0;j<path.size();j++)
            {
                printf("%d ",path[j]);
            }
            printf("\n");
            for(int j=0;j<g.size();j++)
            {
                printf("%d ",g[j]);
            }
            printf("\n");*/
            val=1e9;
            for(int j=0;j<g.size();j++)
            {
                sum+=g[j];
            }
            suck=max(suck,sum);
            sup=0;
            val=min(val,max(sup,sum));
            for(int j=0;j<g.size();j++)
            {
                sup+=g[j];
                sum-=g[j];
                val=min(val,max(sup,sum));
            }
            if(val>=mx1)
            {
                mx2=mx1;
                mx1=val;
            }else if(val>=mx2)
            {
                mx2=val;
            }
        }
    }
    //printf("%d %d\n",mx1,mx2);
    /*if(mx1==0&&mx2==0)
    {
        return 2*l;
    }else
    {*/
        if(mx2==-1e9)
        {
            return suck;
        }else
        {
            return max(suck,mx1+mx2+l);
        }
    //}
}

Compilation message

dreaming.cpp: In function 'void bfs(int)':
dreaming.cpp:22:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |         for(int i=0;i<v[u].size();i++)
      |                     ~^~~~~~~~~~~~
dreaming.cpp:46:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for(int i=0;i<v[u].size();i++)
      |                     ~^~~~~~~~~~~~
dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:104:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  104 |             for(int j=0;j<g.size();j++)
      |                         ~^~~~~~~~~
dreaming.cpp:111:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  111 |             for(int j=0;j<g.size();j++)
      |                         ~^~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 47 ms 8640 KB Output is correct
2 Correct 40 ms 8608 KB Output is correct
3 Correct 28 ms 6836 KB Output is correct
4 Correct 6 ms 4172 KB Output is correct
5 Correct 5 ms 3916 KB Output is correct
6 Correct 10 ms 4636 KB Output is correct
7 Correct 2 ms 3404 KB Output is correct
8 Correct 20 ms 5580 KB Output is correct
9 Correct 23 ms 6220 KB Output is correct
10 Correct 2 ms 3404 KB Output is correct
11 Correct 34 ms 7232 KB Output is correct
12 Correct 62 ms 8164 KB Output is correct
13 Correct 2 ms 3404 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3404 KB Output is correct
2 Correct 2 ms 3404 KB Output is correct
3 Correct 2 ms 3404 KB Output is correct
4 Correct 3 ms 3404 KB Output is correct
5 Correct 2 ms 3404 KB Output is correct
6 Correct 2 ms 3404 KB Output is correct
7 Correct 2 ms 3404 KB Output is correct
8 Correct 2 ms 3404 KB Output is correct
9 Correct 2 ms 3404 KB Output is correct
10 Correct 2 ms 3404 KB Output is correct
11 Correct 2 ms 3404 KB Output is correct
12 Correct 2 ms 3404 KB Output is correct
13 Correct 2 ms 3380 KB Output is correct
14 Correct 2 ms 3404 KB Output is correct
15 Correct 2 ms 3404 KB Output is correct
16 Correct 2 ms 3404 KB Output is correct
17 Correct 2 ms 3404 KB Output is correct
18 Correct 2 ms 3432 KB Output is correct
19 Correct 2 ms 3404 KB Output is correct
20 Correct 2 ms 3404 KB Output is correct
21 Correct 3 ms 3416 KB Output is correct
22 Correct 2 ms 3404 KB Output is correct
23 Correct 2 ms 3404 KB Output is correct
24 Correct 2 ms 3404 KB Output is correct
25 Correct 2 ms 3500 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 47 ms 8640 KB Output is correct
2 Correct 40 ms 8608 KB Output is correct
3 Correct 28 ms 6836 KB Output is correct
4 Correct 6 ms 4172 KB Output is correct
5 Correct 5 ms 3916 KB Output is correct
6 Correct 10 ms 4636 KB Output is correct
7 Correct 2 ms 3404 KB Output is correct
8 Correct 20 ms 5580 KB Output is correct
9 Correct 23 ms 6220 KB Output is correct
10 Correct 2 ms 3404 KB Output is correct
11 Correct 34 ms 7232 KB Output is correct
12 Correct 62 ms 8164 KB Output is correct
13 Correct 2 ms 3404 KB Output is correct
14 Correct 2 ms 3404 KB Output is correct
15 Correct 2 ms 3404 KB Output is correct
16 Correct 2 ms 3404 KB Output is correct
17 Correct 3 ms 3404 KB Output is correct
18 Correct 2 ms 3404 KB Output is correct
19 Correct 2 ms 3404 KB Output is correct
20 Correct 2 ms 3404 KB Output is correct
21 Correct 2 ms 3404 KB Output is correct
22 Correct 2 ms 3404 KB Output is correct
23 Correct 2 ms 3404 KB Output is correct
24 Correct 2 ms 3404 KB Output is correct
25 Correct 2 ms 3404 KB Output is correct
26 Correct 2 ms 3380 KB Output is correct
27 Correct 2 ms 3404 KB Output is correct
28 Correct 2 ms 3404 KB Output is correct
29 Correct 2 ms 3404 KB Output is correct
30 Correct 2 ms 3404 KB Output is correct
31 Correct 2 ms 3432 KB Output is correct
32 Correct 2 ms 3404 KB Output is correct
33 Correct 2 ms 3404 KB Output is correct
34 Correct 3 ms 3416 KB Output is correct
35 Correct 2 ms 3404 KB Output is correct
36 Correct 2 ms 3404 KB Output is correct
37 Correct 2 ms 3404 KB Output is correct
38 Correct 2 ms 3500 KB Output is correct
39 Correct 38 ms 9344 KB Output is correct
40 Correct 40 ms 9312 KB Output is correct
41 Correct 28 ms 7388 KB Output is correct
42 Correct 7 ms 4428 KB Output is correct
43 Correct 2 ms 3424 KB Output is correct
44 Correct 2 ms 3424 KB Output is correct
45 Correct 2 ms 3424 KB Output is correct
46 Correct 2 ms 3404 KB Output is correct
47 Correct 2 ms 3404 KB Output is correct
48 Correct 2 ms 3404 KB Output is correct
49 Correct 2 ms 3404 KB Output is correct
50 Correct 2 ms 3404 KB Output is correct
51 Correct 2 ms 3420 KB Output is correct
52 Correct 2 ms 3404 KB Output is correct
53 Correct 2 ms 3412 KB Output is correct
54 Correct 2 ms 3404 KB Output is correct
55 Correct 2 ms 3372 KB Output is correct
56 Correct 2 ms 3420 KB Output is correct
57 Correct 53 ms 9516 KB Output is correct
58 Correct 56 ms 9668 KB Output is correct
59 Correct 51 ms 9444 KB Output is correct
60 Correct 52 ms 9432 KB Output is correct
61 Correct 57 ms 9548 KB Output is correct
62 Correct 60 ms 9432 KB Output is correct
63 Correct 64 ms 9288 KB Output is correct
64 Correct 46 ms 9220 KB Output is correct
65 Correct 52 ms 9332 KB Output is correct
66 Correct 51 ms 9304 KB Output is correct
67 Correct 73 ms 9456 KB Output is correct
68 Correct 72 ms 9360 KB Output is correct
69 Correct 64 ms 9428 KB Output is correct
70 Correct 59 ms 9420 KB Output is correct
71 Correct 2 ms 3404 KB Output is correct
72 Correct 4 ms 3532 KB Output is correct
73 Correct 3 ms 3532 KB Output is correct
74 Correct 4 ms 3532 KB Output is correct
75 Correct 3 ms 3532 KB Output is correct
76 Correct 5 ms 3564 KB Output is correct
77 Correct 3 ms 3568 KB Output is correct
78 Correct 3 ms 3532 KB Output is correct
79 Correct 4 ms 3532 KB Output is correct
80 Correct 52 ms 9404 KB Output is correct
81 Correct 54 ms 9464 KB Output is correct
82 Correct 56 ms 9404 KB Output is correct
83 Correct 56 ms 9400 KB Output is correct
84 Correct 3 ms 3532 KB Output is correct
85 Correct 3 ms 3532 KB Output is correct
86 Correct 3 ms 3532 KB Output is correct
87 Correct 3 ms 3560 KB Output is correct
88 Correct 3 ms 3560 KB Output is correct
89 Correct 3 ms 3560 KB Output is correct
90 Correct 3 ms 3532 KB Output is correct
91 Correct 3 ms 3560 KB Output is correct
92 Correct 3 ms 3556 KB Output is correct
93 Correct 3 ms 3532 KB Output is correct
94 Correct 2 ms 3404 KB Output is correct
95 Correct 2 ms 3404 KB Output is correct
96 Correct 2 ms 3404 KB Output is correct
97 Correct 2 ms 3424 KB Output is correct
98 Correct 2 ms 3404 KB Output is correct
99 Correct 2 ms 3404 KB Output is correct
100 Correct 3 ms 3424 KB Output is correct
101 Correct 2 ms 3404 KB Output is correct
102 Correct 2 ms 3404 KB Output is correct
103 Correct 2 ms 3404 KB Output is correct
104 Correct 6 ms 4044 KB Output is correct
105 Correct 11 ms 4940 KB Output is correct
106 Correct 3 ms 3404 KB Output is correct
107 Correct 19 ms 5856 KB Output is correct
108 Correct 24 ms 6512 KB Output is correct
109 Correct 3 ms 3404 KB Output is correct
110 Correct 37 ms 7592 KB Output is correct
111 Correct 39 ms 8528 KB Output is correct
112 Correct 4 ms 3404 KB Output is correct
113 Correct 79 ms 9464 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 6264 KB Output is correct
2 Incorrect 22 ms 6320 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3404 KB Output is correct
2 Correct 2 ms 3404 KB Output is correct
3 Correct 2 ms 3404 KB Output is correct
4 Correct 3 ms 3404 KB Output is correct
5 Correct 2 ms 3404 KB Output is correct
6 Correct 2 ms 3404 KB Output is correct
7 Correct 2 ms 3404 KB Output is correct
8 Correct 2 ms 3404 KB Output is correct
9 Correct 2 ms 3404 KB Output is correct
10 Correct 2 ms 3404 KB Output is correct
11 Correct 2 ms 3404 KB Output is correct
12 Correct 2 ms 3404 KB Output is correct
13 Correct 2 ms 3380 KB Output is correct
14 Correct 2 ms 3404 KB Output is correct
15 Correct 2 ms 3404 KB Output is correct
16 Correct 2 ms 3404 KB Output is correct
17 Correct 2 ms 3404 KB Output is correct
18 Correct 2 ms 3432 KB Output is correct
19 Correct 2 ms 3404 KB Output is correct
20 Correct 2 ms 3404 KB Output is correct
21 Correct 3 ms 3416 KB Output is correct
22 Correct 2 ms 3404 KB Output is correct
23 Correct 2 ms 3404 KB Output is correct
24 Correct 2 ms 3404 KB Output is correct
25 Correct 2 ms 3500 KB Output is correct
26 Correct 2 ms 3500 KB Output is correct
27 Correct 2 ms 3532 KB Output is correct
28 Correct 3 ms 3532 KB Output is correct
29 Correct 3 ms 3404 KB Output is correct
30 Correct 3 ms 3532 KB Output is correct
31 Correct 3 ms 3532 KB Output is correct
32 Incorrect 3 ms 3404 KB Output isn't correct
33 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 47 ms 8640 KB Output is correct
2 Correct 40 ms 8608 KB Output is correct
3 Correct 28 ms 6836 KB Output is correct
4 Correct 6 ms 4172 KB Output is correct
5 Correct 5 ms 3916 KB Output is correct
6 Correct 10 ms 4636 KB Output is correct
7 Correct 2 ms 3404 KB Output is correct
8 Correct 20 ms 5580 KB Output is correct
9 Correct 23 ms 6220 KB Output is correct
10 Correct 2 ms 3404 KB Output is correct
11 Correct 34 ms 7232 KB Output is correct
12 Correct 62 ms 8164 KB Output is correct
13 Correct 2 ms 3404 KB Output is correct
14 Correct 2 ms 3404 KB Output is correct
15 Correct 2 ms 3404 KB Output is correct
16 Correct 2 ms 3404 KB Output is correct
17 Correct 3 ms 3404 KB Output is correct
18 Correct 2 ms 3404 KB Output is correct
19 Correct 2 ms 3404 KB Output is correct
20 Correct 2 ms 3404 KB Output is correct
21 Correct 2 ms 3404 KB Output is correct
22 Correct 2 ms 3404 KB Output is correct
23 Correct 2 ms 3404 KB Output is correct
24 Correct 2 ms 3404 KB Output is correct
25 Correct 2 ms 3404 KB Output is correct
26 Correct 2 ms 3380 KB Output is correct
27 Correct 2 ms 3404 KB Output is correct
28 Correct 2 ms 3404 KB Output is correct
29 Correct 2 ms 3404 KB Output is correct
30 Correct 2 ms 3404 KB Output is correct
31 Correct 2 ms 3432 KB Output is correct
32 Correct 2 ms 3404 KB Output is correct
33 Correct 2 ms 3404 KB Output is correct
34 Correct 3 ms 3416 KB Output is correct
35 Correct 2 ms 3404 KB Output is correct
36 Correct 2 ms 3404 KB Output is correct
37 Correct 2 ms 3404 KB Output is correct
38 Correct 2 ms 3500 KB Output is correct
39 Correct 38 ms 9344 KB Output is correct
40 Correct 40 ms 9312 KB Output is correct
41 Correct 28 ms 7388 KB Output is correct
42 Correct 7 ms 4428 KB Output is correct
43 Correct 2 ms 3424 KB Output is correct
44 Correct 2 ms 3424 KB Output is correct
45 Correct 2 ms 3424 KB Output is correct
46 Correct 2 ms 3404 KB Output is correct
47 Correct 2 ms 3404 KB Output is correct
48 Correct 2 ms 3404 KB Output is correct
49 Correct 2 ms 3404 KB Output is correct
50 Correct 2 ms 3404 KB Output is correct
51 Correct 2 ms 3420 KB Output is correct
52 Correct 2 ms 3404 KB Output is correct
53 Correct 2 ms 3412 KB Output is correct
54 Correct 2 ms 3404 KB Output is correct
55 Correct 2 ms 3372 KB Output is correct
56 Correct 2 ms 3420 KB Output is correct
57 Correct 53 ms 9516 KB Output is correct
58 Correct 56 ms 9668 KB Output is correct
59 Correct 51 ms 9444 KB Output is correct
60 Correct 52 ms 9432 KB Output is correct
61 Correct 57 ms 9548 KB Output is correct
62 Correct 60 ms 9432 KB Output is correct
63 Correct 64 ms 9288 KB Output is correct
64 Correct 46 ms 9220 KB Output is correct
65 Correct 52 ms 9332 KB Output is correct
66 Correct 51 ms 9304 KB Output is correct
67 Correct 73 ms 9456 KB Output is correct
68 Correct 72 ms 9360 KB Output is correct
69 Correct 64 ms 9428 KB Output is correct
70 Correct 59 ms 9420 KB Output is correct
71 Correct 2 ms 3404 KB Output is correct
72 Correct 4 ms 3532 KB Output is correct
73 Correct 3 ms 3532 KB Output is correct
74 Correct 4 ms 3532 KB Output is correct
75 Correct 3 ms 3532 KB Output is correct
76 Correct 5 ms 3564 KB Output is correct
77 Correct 3 ms 3568 KB Output is correct
78 Correct 3 ms 3532 KB Output is correct
79 Correct 4 ms 3532 KB Output is correct
80 Correct 52 ms 9404 KB Output is correct
81 Correct 54 ms 9464 KB Output is correct
82 Correct 56 ms 9404 KB Output is correct
83 Correct 56 ms 9400 KB Output is correct
84 Correct 3 ms 3532 KB Output is correct
85 Correct 3 ms 3532 KB Output is correct
86 Correct 3 ms 3532 KB Output is correct
87 Correct 3 ms 3560 KB Output is correct
88 Correct 3 ms 3560 KB Output is correct
89 Correct 3 ms 3560 KB Output is correct
90 Correct 3 ms 3532 KB Output is correct
91 Correct 3 ms 3560 KB Output is correct
92 Correct 3 ms 3556 KB Output is correct
93 Correct 3 ms 3532 KB Output is correct
94 Correct 2 ms 3404 KB Output is correct
95 Correct 2 ms 3404 KB Output is correct
96 Correct 2 ms 3404 KB Output is correct
97 Correct 2 ms 3424 KB Output is correct
98 Correct 2 ms 3404 KB Output is correct
99 Correct 2 ms 3404 KB Output is correct
100 Correct 3 ms 3424 KB Output is correct
101 Correct 2 ms 3404 KB Output is correct
102 Correct 2 ms 3404 KB Output is correct
103 Correct 2 ms 3404 KB Output is correct
104 Correct 6 ms 4044 KB Output is correct
105 Correct 11 ms 4940 KB Output is correct
106 Correct 3 ms 3404 KB Output is correct
107 Correct 19 ms 5856 KB Output is correct
108 Correct 24 ms 6512 KB Output is correct
109 Correct 3 ms 3404 KB Output is correct
110 Correct 37 ms 7592 KB Output is correct
111 Correct 39 ms 8528 KB Output is correct
112 Correct 4 ms 3404 KB Output is correct
113 Correct 79 ms 9464 KB Output is correct
114 Correct 24 ms 6264 KB Output is correct
115 Incorrect 22 ms 6320 KB Output isn't correct
116 Halted 0 ms 0 KB -