oj.uz

Submission #982652

# Submission time Handle Problem Language Result Execution time Memory
982652 2024-05-14T15:02:42 Z dimashhh Swapping Cities (APIO20_swap) C++17
100 / 100
 271 ms 60488 KB 
#include "swap.h"

#include <vector>
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5+12;

vector<pair<int,int>> g[N];
vector<int> gr[N],st[N];
int n,m,p[N],timer=0,t[N],e1[N],e2[N],first_time[N];
bool is[N];
int get(int v){
    if(p[v] == v) return v;
    return p[v] = get(p[v]);
}
int n1,tt[N],P[N];
void merge(int a,int b){
    int vv,uu;
    vv = a;
    uu = b;
    a = get(a);
    b = get(b);
    if(a == b){
        if(!is[a]){
            for(int j:st[a]){
                first_time[j]=timer;
            }
            st[a].clear();
            is[a]=1;
        }
        timer++;
        return;
    }
    if((int)st[a].size() > (int)st[b].size()){
        swap(vv,uu);
        swap(a, b);
    }
    n1++;
    tt[n1] = timer;
//    cout << n1 << ' ' << P[a] << ' ' << P[b] << "x\n";
    gr[n1].push_back(P[a]);
    gr[n1].push_back(P[b]);
    P[b] = n1;
    p[a] = b;
    for(int j:st[a]){
        st[b].push_back(j);
    }
    st[a].clear();
    if(is[b] || is[a] || (vv != e1[a] && vv != e2[a]) || (uu != e1[b] && uu != e2[b])) {
        is[b]=1;
        for(int j:st[b]){
            first_time[j]=timer;
        }
        st[b].clear();
    }else{
        if(uu == e1[b]){
            e1[b] = (vv == e1[a] ? e2[a] : e1[a]);
        }else{
            e2[b] = (vv == e1[a] ? e2[a] : e1[a]);
        }
    }
    timer++;
}
int B = 20;
int up[N][20],tin[N],tout[N],tv;
void dfs(int v,int pr){
    up[v][0] = pr;
    tin[v] = tv++;
    for(int i = 1;i < B;i++){
        up[v][i] = up[up[v][i - 1]][i - 1];
    }
    for(int to:gr[v]){
        dfs(to,v);
    }
    tout[v] = tv++;
}
bool is_pr(int a,int b){
    return (tin[a] <= tin[b] && tout[a] >= tout[b]);
}
int lca(int v,int u){
    if(is_pr(v,u)) return v;
    if(is_pr(u,v)) return u;
    for(int i = B - 1;i >= 0;i--){
        if(!is_pr(up[v][i],u)){
            v = up[v][i];
        }
    }
    return up[v][0];
}
vector <array<int, 3>> e;
void init(int nn, int mm,std::vector<int> u, std::vector<int> v, std::vector<int> w) {
    memset(first_time,-1,sizeof(first_time));
    n1 = n = nn;
    m = mm;
    for (int i = 1; i <= m; i++) {
        e.push_back({w[i - 1], u[i - 1] + 1, v[i - 1] + 1});
    }
    sort(e.begin(), e.end());
    for(int i = 1;i <= n;i++) {
        P[i] =e1[i] = e2[i] = p[i] = i;
        st[i].push_back(i);
    }
    for(auto [w,a,b]:e){
        merge(a,b);
    }
    dfs(n1,n1);
}
void merge1(int a,int b){
    a = get(a);
    b = get(b);
    p[a] = b;
}
int getMinimumFuelCapacity(int X, int Y) {
    X++;Y++;
    int f = max(first_time[X],max(tt[lca(X,Y)],first_time[Y]));
    if(first_time[X] == -1 || first_time[Y] == -1) return -1;
    return e[f][0];
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 5 ms 22876 KB Output is correct
4 Correct 5 ms 22872 KB Output is correct
5 Correct 6 ms 22876 KB Output is correct
6 Correct 5 ms 22876 KB Output is correct
7 Correct 6 ms 22876 KB Output is correct
8 Correct 5 ms 22872 KB Output is correct
9 Correct 90 ms 46024 KB Output is correct
10 Correct 103 ms 49812 KB Output is correct
11 Correct 115 ms 49924 KB Output is correct
12 Correct 115 ms 50772 KB Output is correct
13 Correct 85 ms 50372 KB Output is correct
14 Correct 90 ms 45908 KB Output is correct
15 Correct 175 ms 52192 KB Output is correct
16 Correct 191 ms 51676 KB Output is correct
17 Correct 206 ms 52520 KB Output is correct
18 Correct 197 ms 52096 KB Output is correct
19 Correct 74 ms 30484 KB Output is correct
20 Correct 175 ms 53060 KB Output is correct
21 Correct 188 ms 52808 KB Output is correct
22 Correct 198 ms 53952 KB Output is correct
23 Correct 201 ms 53360 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 186 ms 53912 KB Output is correct
4 Correct 194 ms 54624 KB Output is correct
5 Correct 204 ms 54532 KB Output is correct
6 Correct 193 ms 54828 KB Output is correct
7 Correct 183 ms 54604 KB Output is correct
8 Correct 178 ms 53876 KB Output is correct
9 Correct 186 ms 54664 KB Output is correct
10 Correct 176 ms 53840 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 5 ms 22876 KB Output is correct
4 Correct 5 ms 22872 KB Output is correct
5 Correct 6 ms 22876 KB Output is correct
6 Correct 5 ms 22876 KB Output is correct
7 Correct 6 ms 22876 KB Output is correct
8 Correct 5 ms 22872 KB Output is correct
9 Correct 5 ms 22872 KB Output is correct
10 Correct 6 ms 22872 KB Output is correct
11 Correct 5 ms 22876 KB Output is correct
12 Correct 5 ms 22876 KB Output is correct
13 Correct 6 ms 22876 KB Output is correct
14 Correct 5 ms 22876 KB Output is correct
15 Correct 5 ms 22876 KB Output is correct
16 Correct 5 ms 22872 KB Output is correct
17 Correct 6 ms 22872 KB Output is correct
18 Correct 6 ms 22876 KB Output is correct
19 Correct 5 ms 22876 KB Output is correct
20 Correct 5 ms 22872 KB Output is correct
21 Correct 6 ms 22876 KB Output is correct
22 Correct 6 ms 22876 KB Output is correct
23 Correct 5 ms 22876 KB Output is correct
24 Correct 5 ms 22876 KB Output is correct
25 Correct 6 ms 22972 KB Output is correct
26 Correct 5 ms 22876 KB Output is correct
27 Correct 6 ms 22876 KB Output is correct
28 Correct 6 ms 22876 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22872 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 5 ms 22876 KB Output is correct
4 Correct 5 ms 22876 KB Output is correct
5 Correct 5 ms 22872 KB Output is correct
6 Correct 6 ms 22876 KB Output is correct
7 Correct 5 ms 22876 KB Output is correct
8 Correct 6 ms 22876 KB Output is correct
9 Correct 5 ms 22872 KB Output is correct
10 Correct 90 ms 46024 KB Output is correct
11 Correct 103 ms 49812 KB Output is correct
12 Correct 115 ms 49924 KB Output is correct
13 Correct 115 ms 50772 KB Output is correct
14 Correct 85 ms 50372 KB Output is correct
15 Correct 6 ms 22872 KB Output is correct
16 Correct 5 ms 22876 KB Output is correct
17 Correct 5 ms 22876 KB Output is correct
18 Correct 6 ms 22876 KB Output is correct
19 Correct 5 ms 22876 KB Output is correct
20 Correct 5 ms 22876 KB Output is correct
21 Correct 5 ms 22872 KB Output is correct
22 Correct 6 ms 22872 KB Output is correct
23 Correct 6 ms 22876 KB Output is correct
24 Correct 5 ms 22876 KB Output is correct
25 Correct 5 ms 22872 KB Output is correct
26 Correct 6 ms 22876 KB Output is correct
27 Correct 6 ms 22876 KB Output is correct
28 Correct 5 ms 22876 KB Output is correct
29 Correct 5 ms 22876 KB Output is correct
30 Correct 6 ms 22972 KB Output is correct
31 Correct 5 ms 22876 KB Output is correct
32 Correct 6 ms 22876 KB Output is correct
33 Correct 6 ms 22876 KB Output is correct
34 Correct 14 ms 26396 KB Output is correct
35 Correct 112 ms 49516 KB Output is correct
36 Correct 108 ms 49096 KB Output is correct
37 Correct 110 ms 48328 KB Output is correct
38 Correct 104 ms 47812 KB Output is correct
39 Correct 105 ms 47300 KB Output is correct
40 Correct 94 ms 46280 KB Output is correct
41 Correct 119 ms 50300 KB Output is correct
42 Correct 110 ms 50632 KB Output is correct
43 Correct 98 ms 50120 KB Output is correct
44 Correct 106 ms 47216 KB Output is correct
45 Correct 109 ms 48012 KB Output is correct
46 Correct 107 ms 49260 KB Output is correct
47 Correct 108 ms 47776 KB Output is correct
48 Correct 103 ms 48584 KB Output is correct
49 Correct 54 ms 29636 KB Output is correct
50 Correct 45 ms 29640 KB Output is correct
51 Correct 85 ms 42740 KB Output is correct
52 Correct 134 ms 51644 KB Output is correct
53 Correct 131 ms 50952 KB Output is correct
54 Correct 155 ms 53672 KB Output is correct
55 Correct 82 ms 49860 KB Output is correct
56 Correct 133 ms 52024 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 5 ms 22876 KB Output is correct
4 Correct 5 ms 22872 KB Output is correct
5 Correct 6 ms 22876 KB Output is correct
6 Correct 5 ms 22876 KB Output is correct
7 Correct 6 ms 22876 KB Output is correct
8 Correct 5 ms 22872 KB Output is correct
9 Correct 90 ms 46024 KB Output is correct
10 Correct 103 ms 49812 KB Output is correct
11 Correct 115 ms 49924 KB Output is correct
12 Correct 115 ms 50772 KB Output is correct
13 Correct 85 ms 50372 KB Output is correct
14 Correct 90 ms 45908 KB Output is correct
15 Correct 175 ms 52192 KB Output is correct
16 Correct 191 ms 51676 KB Output is correct
17 Correct 206 ms 52520 KB Output is correct
18 Correct 197 ms 52096 KB Output is correct
19 Correct 186 ms 53912 KB Output is correct
20 Correct 194 ms 54624 KB Output is correct
21 Correct 204 ms 54532 KB Output is correct
22 Correct 193 ms 54828 KB Output is correct
23 Correct 183 ms 54604 KB Output is correct
24 Correct 178 ms 53876 KB Output is correct
25 Correct 186 ms 54664 KB Output is correct
26 Correct 176 ms 53840 KB Output is correct
27 Correct 6 ms 22872 KB Output is correct
28 Correct 5 ms 22876 KB Output is correct
29 Correct 5 ms 22876 KB Output is correct
30 Correct 6 ms 22876 KB Output is correct
31 Correct 5 ms 22876 KB Output is correct
32 Correct 5 ms 22876 KB Output is correct
33 Correct 5 ms 22872 KB Output is correct
34 Correct 6 ms 22872 KB Output is correct
35 Correct 6 ms 22876 KB Output is correct
36 Correct 14 ms 26396 KB Output is correct
37 Correct 112 ms 49516 KB Output is correct
38 Correct 108 ms 49096 KB Output is correct
39 Correct 110 ms 48328 KB Output is correct
40 Correct 104 ms 47812 KB Output is correct
41 Correct 105 ms 47300 KB Output is correct
42 Correct 94 ms 46280 KB Output is correct
43 Correct 119 ms 50300 KB Output is correct
44 Correct 110 ms 50632 KB Output is correct
45 Correct 98 ms 50120 KB Output is correct
46 Correct 106 ms 47216 KB Output is correct
47 Correct 22 ms 26648 KB Output is correct
48 Correct 191 ms 56000 KB Output is correct
49 Correct 203 ms 55112 KB Output is correct
50 Correct 210 ms 54572 KB Output is correct
51 Correct 183 ms 54072 KB Output is correct
52 Correct 184 ms 52948 KB Output is correct
53 Correct 143 ms 46520 KB Output is correct
54 Correct 210 ms 56920 KB Output is correct
55 Correct 204 ms 57020 KB Output is correct
56 Correct 210 ms 53056 KB Output is correct
57 Correct 204 ms 51504 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22872 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 5 ms 22876 KB Output is correct
4 Correct 5 ms 22876 KB Output is correct
5 Correct 5 ms 22872 KB Output is correct
6 Correct 6 ms 22876 KB Output is correct
7 Correct 5 ms 22876 KB Output is correct
8 Correct 6 ms 22876 KB Output is correct
9 Correct 5 ms 22872 KB Output is correct
10 Correct 90 ms 46024 KB Output is correct
11 Correct 103 ms 49812 KB Output is correct
12 Correct 115 ms 49924 KB Output is correct
13 Correct 115 ms 50772 KB Output is correct
14 Correct 85 ms 50372 KB Output is correct
15 Correct 90 ms 45908 KB Output is correct
16 Correct 175 ms 52192 KB Output is correct
17 Correct 191 ms 51676 KB Output is correct
18 Correct 206 ms 52520 KB Output is correct
19 Correct 197 ms 52096 KB Output is correct
20 Correct 186 ms 53912 KB Output is correct
21 Correct 194 ms 54624 KB Output is correct
22 Correct 204 ms 54532 KB Output is correct
23 Correct 193 ms 54828 KB Output is correct
24 Correct 183 ms 54604 KB Output is correct
25 Correct 178 ms 53876 KB Output is correct
26 Correct 186 ms 54664 KB Output is correct
27 Correct 176 ms 53840 KB Output is correct
28 Correct 6 ms 22872 KB Output is correct
29 Correct 5 ms 22876 KB Output is correct
30 Correct 5 ms 22876 KB Output is correct
31 Correct 6 ms 22876 KB Output is correct
32 Correct 5 ms 22876 KB Output is correct
33 Correct 5 ms 22876 KB Output is correct
34 Correct 5 ms 22872 KB Output is correct
35 Correct 6 ms 22872 KB Output is correct
36 Correct 6 ms 22876 KB Output is correct
37 Correct 14 ms 26396 KB Output is correct
38 Correct 112 ms 49516 KB Output is correct
39 Correct 108 ms 49096 KB Output is correct
40 Correct 110 ms 48328 KB Output is correct
41 Correct 104 ms 47812 KB Output is correct
42 Correct 105 ms 47300 KB Output is correct
43 Correct 94 ms 46280 KB Output is correct
44 Correct 119 ms 50300 KB Output is correct
45 Correct 110 ms 50632 KB Output is correct
46 Correct 98 ms 50120 KB Output is correct
47 Correct 106 ms 47216 KB Output is correct
48 Correct 22 ms 26648 KB Output is correct
49 Correct 191 ms 56000 KB Output is correct
50 Correct 203 ms 55112 KB Output is correct
51 Correct 210 ms 54572 KB Output is correct
52 Correct 183 ms 54072 KB Output is correct
53 Correct 184 ms 52948 KB Output is correct
54 Correct 143 ms 46520 KB Output is correct
55 Correct 210 ms 56920 KB Output is correct
56 Correct 204 ms 57020 KB Output is correct
57 Correct 210 ms 53056 KB Output is correct
58 Correct 204 ms 51504 KB Output is correct
59 Correct 74 ms 30484 KB Output is correct
60 Correct 175 ms 53060 KB Output is correct
61 Correct 188 ms 52808 KB Output is correct
62 Correct 198 ms 53952 KB Output is correct
63 Correct 201 ms 53360 KB Output is correct
64 Correct 5 ms 22876 KB Output is correct
65 Correct 5 ms 22872 KB Output is correct
66 Correct 6 ms 22876 KB Output is correct
67 Correct 6 ms 22876 KB Output is correct
68 Correct 5 ms 22876 KB Output is correct
69 Correct 5 ms 22876 KB Output is correct
70 Correct 6 ms 22972 KB Output is correct
71 Correct 5 ms 22876 KB Output is correct
72 Correct 6 ms 22876 KB Output is correct
73 Correct 6 ms 22876 KB Output is correct
74 Correct 109 ms 48012 KB Output is correct
75 Correct 107 ms 49260 KB Output is correct
76 Correct 108 ms 47776 KB Output is correct
77 Correct 103 ms 48584 KB Output is correct
78 Correct 54 ms 29636 KB Output is correct
79 Correct 45 ms 29640 KB Output is correct
80 Correct 85 ms 42740 KB Output is correct
81 Correct 134 ms 51644 KB Output is correct
82 Correct 131 ms 50952 KB Output is correct
83 Correct 155 ms 53672 KB Output is correct
84 Correct 82 ms 49860 KB Output is correct
85 Correct 133 ms 52024 KB Output is correct
86 Correct 59 ms 35480 KB Output is correct
87 Correct 205 ms 54952 KB Output is correct
88 Correct 193 ms 52628 KB Output is correct
89 Correct 233 ms 53272 KB Output is correct
90 Correct 127 ms 28104 KB Output is correct
91 Correct 138 ms 38740 KB Output is correct
92 Correct 178 ms 44076 KB Output is correct
93 Correct 217 ms 55740 KB Output is correct
94 Correct 271 ms 54876 KB Output is correct
95 Correct 238 ms 60488 KB Output is correct
96 Correct 213 ms 55788 KB Output is correct
97 Correct 250 ms 56748 KB Output is correct