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Submission #395244

# Submission time Handle Problem Language Result Execution time Memory
395244 2021-04-28T03:52:21 Z irmuun Swapping Cities (APIO20_swap) C++17
37 / 100
 2000 ms 8416 KB 
#include "swap.h"
#include<bits/stdc++.h>
using namespace std;
int a,b,i,n,m,link[200000],edge[200000],sz[200000],x,y,ans[200000],edgeNum[200000],h[200000],d,e;
pair<int, pair<int,int> >p[200000];
int find(int x){
  if(link[x]==x){
    return x;
  }
  return link[x]=find(link[x]);
}
bool same(int a,int b){
  if(find(a)==find(b)){
    return true;
  }
  else{
    return false;
  }
}
void unite(int a,int b){
  a=find(a);
  b=find(b);
  if(sz[a]<sz[b]){
    swap(a,b);
  }
  if(ans[b]==1){
    ans[a]=1;
  }
  link[b]=a;
  sz[a]+=sz[b];
}
void init(int N, int M, vector<int> U, vector<int> V, vector<int> W) {
  m=M;
  n=N;
  for(i=0;i<n;i++){
    edgeNum[i]=0;
  }
  for(i=0;i<m;i++){
    p[i].first=W[i];
    p[i].second.first=U[i];
    p[i].second.second=V[i];
    edgeNum[U[i]]++;
    edgeNum[V[i]]++;
    h[i+1]=0;
  }
  sort(p,p+m);
  for(i=0;i<n;i++){
    h[edgeNum[i]]++;
  }
}
int getMinimumFuelCapacity(int X, int Y) {
  for(i=0;i<n;i++){
    link[i]=i;
    sz[i]=1;
    edge[i]=0;
    ans[i]=0;
  }
  for(i=0;i<m;i++){
    x=p[i].second.first;
    y=p[i].second.second;
    edge[x]++;
    edge[y]++;
    if(find(x)==find(y)||edge[x]>2||edge[y]>2){
      ans[find(x)]=1;
      ans[find(y)]=1;
    }
    unite(x,y);
    if(find(X)==find(Y)&&ans[find(X)]==1){
      return p[i].first;
    }
  }
  if(h[2]==n){
    return p[m-1].first;
  }
  else{
  	return -1;
  }
}

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 42 ms 4016 KB Output is correct
10 Correct 62 ms 4828 KB Output is correct
11 Correct 65 ms 4652 KB Output is correct
12 Correct 69 ms 4912 KB Output is correct
13 Correct 62 ms 5032 KB Output is correct
14 Execution timed out 2093 ms 4152 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Execution timed out 2084 ms 6908 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 2 ms 456 KB Output is correct
25 Correct 2 ms 332 KB Output is correct
26 Correct 2 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 2 ms 332 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 42 ms 4016 KB Output is correct
11 Correct 62 ms 4828 KB Output is correct
12 Correct 65 ms 4652 KB Output is correct
13 Correct 69 ms 4912 KB Output is correct
14 Correct 62 ms 5032 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 2 ms 456 KB Output is correct
30 Correct 2 ms 332 KB Output is correct
31 Correct 2 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 2 ms 332 KB Output is correct
34 Correct 7 ms 1060 KB Output is correct
35 Correct 70 ms 5028 KB Output is correct
36 Correct 65 ms 4972 KB Output is correct
37 Correct 67 ms 4904 KB Output is correct
38 Correct 66 ms 4912 KB Output is correct
39 Correct 66 ms 4912 KB Output is correct
40 Correct 62 ms 4648 KB Output is correct
41 Correct 71 ms 5044 KB Output is correct
42 Correct 68 ms 5044 KB Output is correct
43 Correct 54 ms 4980 KB Output is correct
44 Correct 74 ms 5032 KB Output is correct
45 Correct 91 ms 6252 KB Output is correct
46 Correct 66 ms 5040 KB Output is correct
47 Correct 70 ms 5016 KB Output is correct
48 Correct 70 ms 5172 KB Output is correct
49 Correct 65 ms 6392 KB Output is correct
50 Correct 54 ms 4932 KB Output is correct
51 Correct 73 ms 5572 KB Output is correct
52 Correct 95 ms 6940 KB Output is correct
53 Correct 100 ms 7656 KB Output is correct
54 Correct 109 ms 8416 KB Output is correct
55 Correct 56 ms 4912 KB Output is correct
56 Correct 116 ms 7304 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 42 ms 4016 KB Output is correct
10 Correct 62 ms 4828 KB Output is correct
11 Correct 65 ms 4652 KB Output is correct
12 Correct 69 ms 4912 KB Output is correct
13 Correct 62 ms 5032 KB Output is correct
14 Execution timed out 2093 ms 4152 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 42 ms 4016 KB Output is correct
11 Correct 62 ms 4828 KB Output is correct
12 Correct 65 ms 4652 KB Output is correct
13 Correct 69 ms 4912 KB Output is correct
14 Correct 62 ms 5032 KB Output is correct
15 Execution timed out 2093 ms 4152 KB Time limit exceeded
16 Halted 0 ms 0 KB -