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Submission #395247

# Submission time Handle Problem Language Result Execution time Memory
395247 2021-04-28T04:02:06 Z irmuun Swapping Cities (APIO20_swap) C++17
43 / 100
 2000 ms 7752 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],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]]++;
  }
  sort(p,p+m);
  sort(edgeNum,edgeNum+n);
}
int getMinimumFuelCapacity(int X, int Y) {
  if(edgeNum[1]==1&&edgeNum[n-1]==2){
    return -1;
  }
  if(edgeNum[0]==edgeNum[n-1]&&edgeNum[0]==2){
    return p[m-1].first;
  }
  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;
    }
  }
  return -1;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 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 40 ms 3280 KB Output is correct
10 Correct 54 ms 4000 KB Output is correct
11 Correct 42 ms 4012 KB Output is correct
12 Correct 45 ms 4172 KB Output is correct
13 Correct 47 ms 4300 KB Output is correct
14 Correct 41 ms 3524 KB Output is correct
15 Correct 109 ms 6148 KB Output is correct
16 Correct 108 ms 6160 KB Output is correct
17 Correct 107 ms 6308 KB Output is correct
18 Correct 118 ms 6308 KB Output is correct
19 Correct 64 ms 4476 KB Output is correct
20 Correct 129 ms 7176 KB Output is correct
21 Correct 120 ms 7372 KB Output is correct
22 Correct 113 ms 7552 KB Output is correct
23 Correct 112 ms 7588 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Execution timed out 2079 ms 6568 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 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 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 336 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 2 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 2 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 2 ms 332 KB Output is correct
26 Correct 2 ms 332 KB Output is correct
27 Correct 1 ms 336 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 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 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 40 ms 3280 KB Output is correct
11 Correct 54 ms 4000 KB Output is correct
12 Correct 42 ms 4012 KB Output is correct
13 Correct 45 ms 4172 KB Output is correct
14 Correct 47 ms 4300 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 336 KB Output is correct
21 Correct 1 ms 300 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 2 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 1 ms 332 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 336 KB Output is correct
33 Correct 2 ms 332 KB Output is correct
34 Correct 7 ms 940 KB Output is correct
35 Correct 71 ms 4580 KB Output is correct
36 Correct 68 ms 4520 KB Output is correct
37 Correct 69 ms 4660 KB Output is correct
38 Correct 67 ms 4536 KB Output is correct
39 Correct 68 ms 4532 KB Output is correct
40 Correct 64 ms 4132 KB Output is correct
41 Correct 71 ms 4532 KB Output is correct
42 Correct 69 ms 4536 KB Output is correct
43 Correct 57 ms 4520 KB Output is correct
44 Correct 76 ms 4528 KB Output is correct
45 Correct 96 ms 5756 KB Output is correct
46 Correct 68 ms 4524 KB Output is correct
47 Correct 70 ms 4524 KB Output is correct
48 Correct 72 ms 4780 KB Output is correct
49 Correct 66 ms 5884 KB Output is correct
50 Correct 53 ms 4656 KB Output is correct
51 Correct 75 ms 5012 KB Output is correct
52 Correct 104 ms 6300 KB Output is correct
53 Correct 103 ms 6896 KB Output is correct
54 Correct 116 ms 7752 KB Output is correct
55 Correct 61 ms 4652 KB Output is correct
56 Correct 142 ms 6668 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 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 40 ms 3280 KB Output is correct
10 Correct 54 ms 4000 KB Output is correct
11 Correct 42 ms 4012 KB Output is correct
12 Correct 45 ms 4172 KB Output is correct
13 Correct 47 ms 4300 KB Output is correct
14 Correct 41 ms 3524 KB Output is correct
15 Correct 109 ms 6148 KB Output is correct
16 Correct 108 ms 6160 KB Output is correct
17 Correct 107 ms 6308 KB Output is correct
18 Correct 118 ms 6308 KB Output is correct
19 Execution timed out 2079 ms 6568 KB Time limit exceeded
20 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 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 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 40 ms 3280 KB Output is correct
11 Correct 54 ms 4000 KB Output is correct
12 Correct 42 ms 4012 KB Output is correct
13 Correct 45 ms 4172 KB Output is correct
14 Correct 47 ms 4300 KB Output is correct
15 Correct 41 ms 3524 KB Output is correct
16 Correct 109 ms 6148 KB Output is correct
17 Correct 108 ms 6160 KB Output is correct
18 Correct 107 ms 6308 KB Output is correct
19 Correct 118 ms 6308 KB Output is correct
20 Execution timed out 2079 ms 6568 KB Time limit exceeded
21 Halted 0 ms 0 KB -