oj.uz

Submission #820294

# Submission time Handle Problem Language Result Execution time Memory
820294 2023-08-11T03:54:52 Z damwuan Swapping Cities (APIO20_swap) C++17
100 / 100
 278 ms 65228 KB 



#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define bit(n,i) ((n>>i)&1)
#define all(x) x.begin(),x.end()
//#pragma GCC optimize("O2,unroll-loops")
//#pragma GCC target("avx,avx2,bmi,bmi2,sse,sse2,sse3,ssse3,sse4,popcnt")
//#define int long long
typedef long long ll;
typedef pair<int,int> pii;
typedef double ld;
typedef pair<ld,ld> pdd;
typedef pair<ll,ll> pll;
const ll maxn=4e5+69;
const ll offset=1e9;
const ll block_sz=317;
const ll inf=1e18;
const ll mod=1e9+7;
int n,par[maxn],m,deg[maxn],val[maxn],up[maxn][20],in[maxn],out[maxn],Time,ans[maxn];
bool ok[maxn];
vector<int> adj[maxn];
pair<int,pii> Edge[maxn];
map<pii,int> L;
int Find(int u)
{
    return (par[u]<0?u:par[u]=Find(par[u]));
}
void AddEdge(int u,int v,int w)
{
    val[n]=w;
    deg[u]++;
    deg[v]++;
    if (deg[u]>2 || deg[v]>2) ok[n]=1;
    u=Find(u);
    v=Find(v);
    par[n]+=par[u];
    par[u]=n;
    adj[n].pb(u);
    if (u!=v)
    {
        adj[n].pb(v);
        par[n]+=par[v];
        par[v]=n;
    }
    ok[n]=ok[n]|ok[u]|ok[v];
    //cerr<<n<<' '<<ok[n]<<' '<<val[n]<< " kk\n";
    n++;
}
void dfs(int u,int pre)
{
    in[u]=++Time;
    up[u][0]=pre;
    for1(i,1,19)
    {
        up[u][i]=up[up[u][i-1]][i-1];
    }
    if (ok[u]||adj[u].size()==1) ans[u]=val[u];
    else if (u!=pre) ans[u]=ans[pre];
    else ans[u]=-1;
    //cerr <<"acac "<<u<<' '<<ans[u]<<'\n';
    for(int v: adj[u])
    {
        dfs(v,u);
    }
    out[u]=Time;
}
bool is_ancestor(int u,int v)
{
    return (in[u]<=in[v] && out[v] <= out[u]);
}
int lca(int u,int v)
{
    if (is_ancestor(u,v)) return u;
    if (is_ancestor(v,u)) return v;
    for2(i,19,0)
    {
        if (!is_ancestor(up[u][i],v)) u=up[u][i];
    }
    return up[u][0];
}
void init(int N,int M,vector<int> U,vector<int> V, vector<int> W)
{
    n=N;
    m=M;
    for1(i,0,n+m) par[i]=-1;
    for1(i,0,m-1)
    {
        Edge[i+1]={W[i],{U[i],V[i]}};
        //L[{U[i],V[i]}]=W[i];
    }
    sort(Edge+1,Edge+1+m);
    for1(i,1,m)
    {
        AddEdge(Edge[i].se.fi,Edge[i].se.se,Edge[i].fi);
    }
    dfs(n-1,n-1);
}
int getMinimumFuelCapacity(int X, int Y) {
  return ans[lca(X,Y)];
}

//
//int main() {
//  int N, M;
//  assert(2 == scanf("%d %d", &N, &M));
//
//  std::vector<int> U(M), V(M), W(M);
//  for (int i = 0; i < M; ++i) {
//    assert(3 == scanf("%d %d %d", &U[i], &V[i], &W[i]));
//  }
//
//  int Q;
//  assert(1 == scanf("%d", &Q));
//
//  std::vector<int> X(Q), Y(Q);
//  for (int i = 0; i < Q; ++i) {
//    assert(2 == scanf("%d %d", &X[i], &Y[i]));
//  }
//
//  init(N, M, U, V, W);
//
//  std::vector<int> minimum_fuel_capacities(Q);
//  for (int i = 0; i < Q; ++i) {
//    minimum_fuel_capacities[i] = getMinimumFuelCapacity(X[i], Y[i]);
//  }
//
//  for (int i = 0; i < Q; ++i) {
//    printf("%d\n", minimum_fuel_capacities[i]);
//  }
//
//  return 0;
//}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 4 ms 9648 KB Output is correct
3 Correct 4 ms 9684 KB Output is correct
4 Correct 4 ms 9812 KB Output is correct
5 Correct 5 ms 9940 KB Output is correct
6 Correct 5 ms 9952 KB Output is correct
7 Correct 4 ms 9940 KB Output is correct
8 Correct 5 ms 10024 KB Output is correct
9 Correct 80 ms 30412 KB Output is correct
10 Correct 119 ms 35016 KB Output is correct
11 Correct 94 ms 34600 KB Output is correct
12 Correct 103 ms 36028 KB Output is correct
13 Correct 81 ms 38280 KB Output is correct
14 Correct 80 ms 30412 KB Output is correct
15 Correct 173 ms 37032 KB Output is correct
16 Correct 158 ms 36320 KB Output is correct
17 Correct 170 ms 37760 KB Output is correct
18 Correct 182 ms 40120 KB Output is correct
19 Correct 68 ms 17300 KB Output is correct
20 Correct 165 ms 38204 KB Output is correct
21 Correct 162 ms 37444 KB Output is correct
22 Correct 180 ms 39256 KB Output is correct
23 Correct 188 ms 41508 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 4 ms 9648 KB Output is correct
3 Correct 167 ms 42016 KB Output is correct
4 Correct 191 ms 43532 KB Output is correct
5 Correct 174 ms 42756 KB Output is correct
6 Correct 186 ms 43364 KB Output is correct
7 Correct 186 ms 43092 KB Output is correct
8 Correct 189 ms 41808 KB Output is correct
9 Correct 173 ms 42812 KB Output is correct
10 Correct 172 ms 41552 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 4 ms 9648 KB Output is correct
3 Correct 4 ms 9684 KB Output is correct
4 Correct 4 ms 9812 KB Output is correct
5 Correct 5 ms 9940 KB Output is correct
6 Correct 5 ms 9952 KB Output is correct
7 Correct 4 ms 9940 KB Output is correct
8 Correct 5 ms 10024 KB Output is correct
9 Correct 6 ms 9684 KB Output is correct
10 Correct 5 ms 9940 KB Output is correct
11 Correct 5 ms 9940 KB Output is correct
12 Correct 5 ms 9940 KB Output is correct
13 Correct 5 ms 9940 KB Output is correct
14 Correct 5 ms 9940 KB Output is correct
15 Correct 6 ms 9940 KB Output is correct
16 Correct 5 ms 9940 KB Output is correct
17 Correct 5 ms 9940 KB Output is correct
18 Correct 6 ms 9940 KB Output is correct
19 Correct 5 ms 9976 KB Output is correct
20 Correct 5 ms 9928 KB Output is correct
21 Correct 5 ms 9940 KB Output is correct
22 Correct 5 ms 10068 KB Output is correct
23 Correct 5 ms 9940 KB Output is correct
24 Correct 5 ms 10068 KB Output is correct
25 Correct 6 ms 10068 KB Output is correct
26 Correct 5 ms 10196 KB Output is correct
27 Correct 5 ms 9940 KB Output is correct
28 Correct 5 ms 10196 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 4 ms 9648 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 4 ms 9812 KB Output is correct
6 Correct 5 ms 9940 KB Output is correct
7 Correct 5 ms 9952 KB Output is correct
8 Correct 4 ms 9940 KB Output is correct
9 Correct 5 ms 10024 KB Output is correct
10 Correct 80 ms 30412 KB Output is correct
11 Correct 119 ms 35016 KB Output is correct
12 Correct 94 ms 34600 KB Output is correct
13 Correct 103 ms 36028 KB Output is correct
14 Correct 81 ms 38280 KB Output is correct
15 Correct 5 ms 9940 KB Output is correct
16 Correct 5 ms 9940 KB Output is correct
17 Correct 5 ms 9940 KB Output is correct
18 Correct 5 ms 9940 KB Output is correct
19 Correct 5 ms 9940 KB Output is correct
20 Correct 6 ms 9940 KB Output is correct
21 Correct 5 ms 9940 KB Output is correct
22 Correct 5 ms 9940 KB Output is correct
23 Correct 6 ms 9940 KB Output is correct
24 Correct 5 ms 9976 KB Output is correct
25 Correct 5 ms 9928 KB Output is correct
26 Correct 5 ms 9940 KB Output is correct
27 Correct 5 ms 10068 KB Output is correct
28 Correct 5 ms 9940 KB Output is correct
29 Correct 5 ms 10068 KB Output is correct
30 Correct 6 ms 10068 KB Output is correct
31 Correct 5 ms 10196 KB Output is correct
32 Correct 5 ms 9940 KB Output is correct
33 Correct 5 ms 10196 KB Output is correct
34 Correct 13 ms 13268 KB Output is correct
35 Correct 108 ms 36024 KB Output is correct
36 Correct 105 ms 36016 KB Output is correct
37 Correct 97 ms 36028 KB Output is correct
38 Correct 97 ms 35664 KB Output is correct
39 Correct 96 ms 35560 KB Output is correct
40 Correct 90 ms 33356 KB Output is correct
41 Correct 104 ms 36060 KB Output is correct
42 Correct 99 ms 35976 KB Output is correct
43 Correct 82 ms 39036 KB Output is correct
44 Correct 111 ms 36224 KB Output is correct
45 Correct 116 ms 46004 KB Output is correct
46 Correct 98 ms 37884 KB Output is correct
47 Correct 100 ms 37928 KB Output is correct
48 Correct 105 ms 41432 KB Output is correct
49 Correct 95 ms 46028 KB Output is correct
50 Correct 69 ms 38092 KB Output is correct
51 Correct 106 ms 43808 KB Output is correct
52 Correct 139 ms 52428 KB Output is correct
53 Correct 161 ms 55472 KB Output is correct
54 Correct 164 ms 61180 KB Output is correct
55 Correct 81 ms 40660 KB Output is correct
56 Correct 164 ms 56256 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 4 ms 9648 KB Output is correct
3 Correct 4 ms 9684 KB Output is correct
4 Correct 4 ms 9812 KB Output is correct
5 Correct 5 ms 9940 KB Output is correct
6 Correct 5 ms 9952 KB Output is correct
7 Correct 4 ms 9940 KB Output is correct
8 Correct 5 ms 10024 KB Output is correct
9 Correct 80 ms 30412 KB Output is correct
10 Correct 119 ms 35016 KB Output is correct
11 Correct 94 ms 34600 KB Output is correct
12 Correct 103 ms 36028 KB Output is correct
13 Correct 81 ms 38280 KB Output is correct
14 Correct 80 ms 30412 KB Output is correct
15 Correct 173 ms 37032 KB Output is correct
16 Correct 158 ms 36320 KB Output is correct
17 Correct 170 ms 37760 KB Output is correct
18 Correct 182 ms 40120 KB Output is correct
19 Correct 167 ms 42016 KB Output is correct
20 Correct 191 ms 43532 KB Output is correct
21 Correct 174 ms 42756 KB Output is correct
22 Correct 186 ms 43364 KB Output is correct
23 Correct 186 ms 43092 KB Output is correct
24 Correct 189 ms 41808 KB Output is correct
25 Correct 173 ms 42812 KB Output is correct
26 Correct 172 ms 41552 KB Output is correct
27 Correct 5 ms 9940 KB Output is correct
28 Correct 5 ms 9940 KB Output is correct
29 Correct 5 ms 9940 KB Output is correct
30 Correct 5 ms 9940 KB Output is correct
31 Correct 5 ms 9940 KB Output is correct
32 Correct 6 ms 9940 KB Output is correct
33 Correct 5 ms 9940 KB Output is correct
34 Correct 5 ms 9940 KB Output is correct
35 Correct 6 ms 9940 KB Output is correct
36 Correct 13 ms 13268 KB Output is correct
37 Correct 108 ms 36024 KB Output is correct
38 Correct 105 ms 36016 KB Output is correct
39 Correct 97 ms 36028 KB Output is correct
40 Correct 97 ms 35664 KB Output is correct
41 Correct 96 ms 35560 KB Output is correct
42 Correct 90 ms 33356 KB Output is correct
43 Correct 104 ms 36060 KB Output is correct
44 Correct 99 ms 35976 KB Output is correct
45 Correct 82 ms 39036 KB Output is correct
46 Correct 111 ms 36224 KB Output is correct
47 Correct 19 ms 13268 KB Output is correct
48 Correct 175 ms 38580 KB Output is correct
49 Correct 167 ms 38628 KB Output is correct
50 Correct 170 ms 38576 KB Output is correct
51 Correct 170 ms 38396 KB Output is correct
52 Correct 170 ms 36932 KB Output is correct
53 Correct 141 ms 30736 KB Output is correct
54 Correct 171 ms 39200 KB Output is correct
55 Correct 202 ms 38552 KB Output is correct
56 Correct 186 ms 41012 KB Output is correct
57 Correct 185 ms 39272 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 4 ms 9648 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 4 ms 9812 KB Output is correct
6 Correct 5 ms 9940 KB Output is correct
7 Correct 5 ms 9952 KB Output is correct
8 Correct 4 ms 9940 KB Output is correct
9 Correct 5 ms 10024 KB Output is correct
10 Correct 80 ms 30412 KB Output is correct
11 Correct 119 ms 35016 KB Output is correct
12 Correct 94 ms 34600 KB Output is correct
13 Correct 103 ms 36028 KB Output is correct
14 Correct 81 ms 38280 KB Output is correct
15 Correct 80 ms 30412 KB Output is correct
16 Correct 173 ms 37032 KB Output is correct
17 Correct 158 ms 36320 KB Output is correct
18 Correct 170 ms 37760 KB Output is correct
19 Correct 182 ms 40120 KB Output is correct
20 Correct 167 ms 42016 KB Output is correct
21 Correct 191 ms 43532 KB Output is correct
22 Correct 174 ms 42756 KB Output is correct
23 Correct 186 ms 43364 KB Output is correct
24 Correct 186 ms 43092 KB Output is correct
25 Correct 189 ms 41808 KB Output is correct
26 Correct 173 ms 42812 KB Output is correct
27 Correct 172 ms 41552 KB Output is correct
28 Correct 5 ms 9940 KB Output is correct
29 Correct 5 ms 9940 KB Output is correct
30 Correct 5 ms 9940 KB Output is correct
31 Correct 5 ms 9940 KB Output is correct
32 Correct 5 ms 9940 KB Output is correct
33 Correct 6 ms 9940 KB Output is correct
34 Correct 5 ms 9940 KB Output is correct
35 Correct 5 ms 9940 KB Output is correct
36 Correct 6 ms 9940 KB Output is correct
37 Correct 13 ms 13268 KB Output is correct
38 Correct 108 ms 36024 KB Output is correct
39 Correct 105 ms 36016 KB Output is correct
40 Correct 97 ms 36028 KB Output is correct
41 Correct 97 ms 35664 KB Output is correct
42 Correct 96 ms 35560 KB Output is correct
43 Correct 90 ms 33356 KB Output is correct
44 Correct 104 ms 36060 KB Output is correct
45 Correct 99 ms 35976 KB Output is correct
46 Correct 82 ms 39036 KB Output is correct
47 Correct 111 ms 36224 KB Output is correct
48 Correct 19 ms 13268 KB Output is correct
49 Correct 175 ms 38580 KB Output is correct
50 Correct 167 ms 38628 KB Output is correct
51 Correct 170 ms 38576 KB Output is correct
52 Correct 170 ms 38396 KB Output is correct
53 Correct 170 ms 36932 KB Output is correct
54 Correct 141 ms 30736 KB Output is correct
55 Correct 171 ms 39200 KB Output is correct
56 Correct 202 ms 38552 KB Output is correct
57 Correct 186 ms 41012 KB Output is correct
58 Correct 185 ms 39272 KB Output is correct
59 Correct 68 ms 17300 KB Output is correct
60 Correct 165 ms 38204 KB Output is correct
61 Correct 162 ms 37444 KB Output is correct
62 Correct 180 ms 39256 KB Output is correct
63 Correct 188 ms 41508 KB Output is correct
64 Correct 5 ms 9976 KB Output is correct
65 Correct 5 ms 9928 KB Output is correct
66 Correct 5 ms 9940 KB Output is correct
67 Correct 5 ms 10068 KB Output is correct
68 Correct 5 ms 9940 KB Output is correct
69 Correct 5 ms 10068 KB Output is correct
70 Correct 6 ms 10068 KB Output is correct
71 Correct 5 ms 10196 KB Output is correct
72 Correct 5 ms 9940 KB Output is correct
73 Correct 5 ms 10196 KB Output is correct
74 Correct 116 ms 46004 KB Output is correct
75 Correct 98 ms 37884 KB Output is correct
76 Correct 100 ms 37928 KB Output is correct
77 Correct 105 ms 41432 KB Output is correct
78 Correct 95 ms 46028 KB Output is correct
79 Correct 69 ms 38092 KB Output is correct
80 Correct 106 ms 43808 KB Output is correct
81 Correct 139 ms 52428 KB Output is correct
82 Correct 161 ms 55472 KB Output is correct
83 Correct 164 ms 61180 KB Output is correct
84 Correct 81 ms 40660 KB Output is correct
85 Correct 164 ms 56256 KB Output is correct
86 Correct 59 ms 24448 KB Output is correct
87 Correct 170 ms 42672 KB Output is correct
88 Correct 174 ms 42652 KB Output is correct
89 Correct 195 ms 44712 KB Output is correct
90 Correct 167 ms 52112 KB Output is correct
91 Correct 195 ms 49364 KB Output is correct
92 Correct 220 ms 47612 KB Output is correct
93 Correct 214 ms 56624 KB Output is correct
94 Correct 277 ms 59996 KB Output is correct
95 Correct 234 ms 65228 KB Output is correct
96 Correct 181 ms 45404 KB Output is correct
97 Correct 278 ms 52784 KB Output is correct