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Submission #1022341

# Submission time Handle Problem Language Result Execution time Memory
1022341 2024-07-13T12:11:46 Z imarn Swapping Cities (APIO20_swap) C++14
100 / 100
 215 ms 66296 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC target("avx2")
#define ll long long
#define pii pair<ll,ll>
#define pll pair<ll,ll>
#define plx pair<ll,int>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
#define vi vector<int>
#define vl vector<ll>
#define vvi vector<vi>
using namespace std;
const int mxn=3e5+5;
int pr[mxn];
int up[mxn][20]{0};
int dep[mxn]{0},d[mxn]{0};
vector<int>g[mxn];
int dp[mxn]{0};
bool vis[mxn]{0},ok=0;
int get(int r){
    return pr[r]==r?r:pr[r]=get(pr[r]);
}
void dfs(int u,int p,int l){
    up[u][0]=p;dep[u]=l;
    for(int i=1;i<20;i++)up[u][i]=up[up[u][i-1]][i-1];
    for(auto v:g[u]){
        if(v==p)continue;
        if(!vis[v])vis[v]=1,dp[v]=dp[u];
        dfs(v,u,l+1);
    }
}
int get(int a,int b){
    if(dep[a]>dep[b])swap(a,b);
    for(int i=19;i>=0;i--)if(dep[b]-(1<<i)>=dep[a])b=up[b][i];
    if(a==b)return a;
    for(int i=19;i>=0;i--)if(up[a][i]!=up[b][i])a=up[a][i],b=up[b][i];
    return up[a][0];
}
void init(int N,int M,vi U,vi V,vi W){
    vector<pair<int,pii>>edge;iota(pr,pr+N,0);
    for(int i=0;i<M;i++)edge.pb({W[i],{U[i],V[i]}});
    sort(edge.begin(),edge.end());
    int cr=N-1;
    for(auto it : edge){
        cr++;pr[cr]=cr;dp[cr]=it.f;
        d[it.s.f]++;d[it.s.s]++;
        int x=get(it.s.f),y=get(it.s.s);
        pr[x]=cr;pr[y]=cr;
        if(x==y){g[cr].pb(x);vis[cr]=1;continue;}
        g[cr].pb(x);g[cr].pb(y);
        if(d[it.s.f]>=3||d[it.s.s]>=3||vis[x]||vis[y])vis[cr]=1;
    }if(!vis[cr])return;ok=1;
    dfs(cr,cr,0);
}

int getMinimumFuelCapacity(int X, int Y) {
    if(!ok)return -1;
    return dp[get(X,Y)];
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7516 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Correct 3 ms 7352 KB Output is correct
4 Correct 3 ms 7516 KB Output is correct
5 Correct 4 ms 7516 KB Output is correct
6 Correct 3 ms 7516 KB Output is correct
7 Correct 3 ms 7532 KB Output is correct
8 Correct 4 ms 7516 KB Output is correct
9 Correct 34 ms 16332 KB Output is correct
10 Correct 43 ms 18368 KB Output is correct
11 Correct 39 ms 18368 KB Output is correct
12 Correct 46 ms 18880 KB Output is correct
13 Correct 39 ms 19392 KB Output is correct
14 Correct 38 ms 16832 KB Output is correct
15 Correct 75 ms 22456 KB Output is correct
16 Correct 78 ms 22176 KB Output is correct
17 Correct 76 ms 22732 KB Output is correct
18 Correct 80 ms 23488 KB Output is correct
19 Correct 57 ms 16580 KB Output is correct
20 Correct 140 ms 38696 KB Output is correct
21 Correct 142 ms 37828 KB Output is correct
22 Correct 134 ms 39872 KB Output is correct
23 Correct 186 ms 43616 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7516 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Correct 150 ms 45252 KB Output is correct
4 Correct 154 ms 46784 KB Output is correct
5 Correct 156 ms 45964 KB Output is correct
6 Correct 144 ms 46784 KB Output is correct
7 Correct 153 ms 46268 KB Output is correct
8 Correct 144 ms 44744 KB Output is correct
9 Correct 137 ms 46020 KB Output is correct
10 Correct 143 ms 44484 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7516 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Correct 3 ms 7352 KB Output is correct
4 Correct 3 ms 7516 KB Output is correct
5 Correct 4 ms 7516 KB Output is correct
6 Correct 3 ms 7516 KB Output is correct
7 Correct 3 ms 7532 KB Output is correct
8 Correct 4 ms 7516 KB Output is correct
9 Correct 3 ms 7516 KB Output is correct
10 Correct 4 ms 7772 KB Output is correct
11 Correct 3 ms 7772 KB Output is correct
12 Correct 4 ms 8024 KB Output is correct
13 Correct 3 ms 7516 KB Output is correct
14 Correct 4 ms 7772 KB Output is correct
15 Correct 3 ms 7772 KB Output is correct
16 Correct 3 ms 7784 KB Output is correct
17 Correct 3 ms 7772 KB Output is correct
18 Correct 3 ms 7768 KB Output is correct
19 Correct 4 ms 7772 KB Output is correct
20 Correct 3 ms 7772 KB Output is correct
21 Correct 4 ms 7772 KB Output is correct
22 Correct 4 ms 7768 KB Output is correct
23 Correct 3 ms 7516 KB Output is correct
24 Correct 3 ms 7772 KB Output is correct
25 Correct 4 ms 8024 KB Output is correct
26 Correct 4 ms 8028 KB Output is correct
27 Correct 3 ms 7772 KB Output is correct
28 Correct 4 ms 8028 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7516 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Correct 3 ms 7516 KB Output is correct
4 Correct 3 ms 7352 KB Output is correct
5 Correct 3 ms 7516 KB Output is correct
6 Correct 4 ms 7516 KB Output is correct
7 Correct 3 ms 7516 KB Output is correct
8 Correct 3 ms 7532 KB Output is correct
9 Correct 4 ms 7516 KB Output is correct
10 Correct 34 ms 16332 KB Output is correct
11 Correct 43 ms 18368 KB Output is correct
12 Correct 39 ms 18368 KB Output is correct
13 Correct 46 ms 18880 KB Output is correct
14 Correct 39 ms 19392 KB Output is correct
15 Correct 4 ms 7772 KB Output is correct
16 Correct 3 ms 7772 KB Output is correct
17 Correct 4 ms 8024 KB Output is correct
18 Correct 3 ms 7516 KB Output is correct
19 Correct 4 ms 7772 KB Output is correct
20 Correct 3 ms 7772 KB Output is correct
21 Correct 3 ms 7784 KB Output is correct
22 Correct 3 ms 7772 KB Output is correct
23 Correct 3 ms 7768 KB Output is correct
24 Correct 4 ms 7772 KB Output is correct
25 Correct 3 ms 7772 KB Output is correct
26 Correct 4 ms 7772 KB Output is correct
27 Correct 4 ms 7768 KB Output is correct
28 Correct 3 ms 7516 KB Output is correct
29 Correct 3 ms 7772 KB Output is correct
30 Correct 4 ms 8024 KB Output is correct
31 Correct 4 ms 8028 KB Output is correct
32 Correct 3 ms 7772 KB Output is correct
33 Correct 4 ms 8028 KB Output is correct
34 Correct 12 ms 11352 KB Output is correct
35 Correct 71 ms 35660 KB Output is correct
36 Correct 74 ms 35524 KB Output is correct
37 Correct 65 ms 35520 KB Output is correct
38 Correct 65 ms 35264 KB Output is correct
39 Correct 62 ms 35008 KB Output is correct
40 Correct 57 ms 32960 KB Output is correct
41 Correct 64 ms 36032 KB Output is correct
42 Correct 72 ms 35528 KB Output is correct
43 Correct 61 ms 40896 KB Output is correct
44 Correct 66 ms 36116 KB Output is correct
45 Correct 98 ms 50100 KB Output is correct
46 Correct 71 ms 35748 KB Output is correct
47 Correct 68 ms 35916 KB Output is correct
48 Correct 77 ms 40388 KB Output is correct
49 Correct 79 ms 49332 KB Output is correct
50 Correct 62 ms 39872 KB Output is correct
51 Correct 79 ms 44440 KB Output is correct
52 Correct 105 ms 52364 KB Output is correct
53 Correct 116 ms 55476 KB Output is correct
54 Correct 130 ms 62432 KB Output is correct
55 Correct 61 ms 40384 KB Output is correct
56 Correct 124 ms 57592 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7516 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Correct 3 ms 7352 KB Output is correct
4 Correct 3 ms 7516 KB Output is correct
5 Correct 4 ms 7516 KB Output is correct
6 Correct 3 ms 7516 KB Output is correct
7 Correct 3 ms 7532 KB Output is correct
8 Correct 4 ms 7516 KB Output is correct
9 Correct 34 ms 16332 KB Output is correct
10 Correct 43 ms 18368 KB Output is correct
11 Correct 39 ms 18368 KB Output is correct
12 Correct 46 ms 18880 KB Output is correct
13 Correct 39 ms 19392 KB Output is correct
14 Correct 38 ms 16832 KB Output is correct
15 Correct 75 ms 22456 KB Output is correct
16 Correct 78 ms 22176 KB Output is correct
17 Correct 76 ms 22732 KB Output is correct
18 Correct 80 ms 23488 KB Output is correct
19 Correct 150 ms 45252 KB Output is correct
20 Correct 154 ms 46784 KB Output is correct
21 Correct 156 ms 45964 KB Output is correct
22 Correct 144 ms 46784 KB Output is correct
23 Correct 153 ms 46268 KB Output is correct
24 Correct 144 ms 44744 KB Output is correct
25 Correct 137 ms 46020 KB Output is correct
26 Correct 143 ms 44484 KB Output is correct
27 Correct 4 ms 7772 KB Output is correct
28 Correct 3 ms 7772 KB Output is correct
29 Correct 4 ms 8024 KB Output is correct
30 Correct 3 ms 7516 KB Output is correct
31 Correct 4 ms 7772 KB Output is correct
32 Correct 3 ms 7772 KB Output is correct
33 Correct 3 ms 7784 KB Output is correct
34 Correct 3 ms 7772 KB Output is correct
35 Correct 3 ms 7768 KB Output is correct
36 Correct 12 ms 11352 KB Output is correct
37 Correct 71 ms 35660 KB Output is correct
38 Correct 74 ms 35524 KB Output is correct
39 Correct 65 ms 35520 KB Output is correct
40 Correct 65 ms 35264 KB Output is correct
41 Correct 62 ms 35008 KB Output is correct
42 Correct 57 ms 32960 KB Output is correct
43 Correct 64 ms 36032 KB Output is correct
44 Correct 72 ms 35528 KB Output is correct
45 Correct 61 ms 40896 KB Output is correct
46 Correct 66 ms 36116 KB Output is correct
47 Correct 15 ms 11352 KB Output is correct
48 Correct 135 ms 39544 KB Output is correct
49 Correct 148 ms 39616 KB Output is correct
50 Correct 134 ms 39372 KB Output is correct
51 Correct 132 ms 39360 KB Output is correct
52 Correct 129 ms 37568 KB Output is correct
53 Correct 125 ms 30512 KB Output is correct
54 Correct 143 ms 39912 KB Output is correct
55 Correct 135 ms 39616 KB Output is correct
56 Correct 193 ms 43716 KB Output is correct
57 Correct 150 ms 40008 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7516 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Correct 3 ms 7516 KB Output is correct
4 Correct 3 ms 7352 KB Output is correct
5 Correct 3 ms 7516 KB Output is correct
6 Correct 4 ms 7516 KB Output is correct
7 Correct 3 ms 7516 KB Output is correct
8 Correct 3 ms 7532 KB Output is correct
9 Correct 4 ms 7516 KB Output is correct
10 Correct 34 ms 16332 KB Output is correct
11 Correct 43 ms 18368 KB Output is correct
12 Correct 39 ms 18368 KB Output is correct
13 Correct 46 ms 18880 KB Output is correct
14 Correct 39 ms 19392 KB Output is correct
15 Correct 38 ms 16832 KB Output is correct
16 Correct 75 ms 22456 KB Output is correct
17 Correct 78 ms 22176 KB Output is correct
18 Correct 76 ms 22732 KB Output is correct
19 Correct 80 ms 23488 KB Output is correct
20 Correct 150 ms 45252 KB Output is correct
21 Correct 154 ms 46784 KB Output is correct
22 Correct 156 ms 45964 KB Output is correct
23 Correct 144 ms 46784 KB Output is correct
24 Correct 153 ms 46268 KB Output is correct
25 Correct 144 ms 44744 KB Output is correct
26 Correct 137 ms 46020 KB Output is correct
27 Correct 143 ms 44484 KB Output is correct
28 Correct 4 ms 7772 KB Output is correct
29 Correct 3 ms 7772 KB Output is correct
30 Correct 4 ms 8024 KB Output is correct
31 Correct 3 ms 7516 KB Output is correct
32 Correct 4 ms 7772 KB Output is correct
33 Correct 3 ms 7772 KB Output is correct
34 Correct 3 ms 7784 KB Output is correct
35 Correct 3 ms 7772 KB Output is correct
36 Correct 3 ms 7768 KB Output is correct
37 Correct 12 ms 11352 KB Output is correct
38 Correct 71 ms 35660 KB Output is correct
39 Correct 74 ms 35524 KB Output is correct
40 Correct 65 ms 35520 KB Output is correct
41 Correct 65 ms 35264 KB Output is correct
42 Correct 62 ms 35008 KB Output is correct
43 Correct 57 ms 32960 KB Output is correct
44 Correct 64 ms 36032 KB Output is correct
45 Correct 72 ms 35528 KB Output is correct
46 Correct 61 ms 40896 KB Output is correct
47 Correct 66 ms 36116 KB Output is correct
48 Correct 15 ms 11352 KB Output is correct
49 Correct 135 ms 39544 KB Output is correct
50 Correct 148 ms 39616 KB Output is correct
51 Correct 134 ms 39372 KB Output is correct
52 Correct 132 ms 39360 KB Output is correct
53 Correct 129 ms 37568 KB Output is correct
54 Correct 125 ms 30512 KB Output is correct
55 Correct 143 ms 39912 KB Output is correct
56 Correct 135 ms 39616 KB Output is correct
57 Correct 193 ms 43716 KB Output is correct
58 Correct 150 ms 40008 KB Output is correct
59 Correct 57 ms 16580 KB Output is correct
60 Correct 140 ms 38696 KB Output is correct
61 Correct 142 ms 37828 KB Output is correct
62 Correct 134 ms 39872 KB Output is correct
63 Correct 186 ms 43616 KB Output is correct
64 Correct 4 ms 7772 KB Output is correct
65 Correct 3 ms 7772 KB Output is correct
66 Correct 4 ms 7772 KB Output is correct
67 Correct 4 ms 7768 KB Output is correct
68 Correct 3 ms 7516 KB Output is correct
69 Correct 3 ms 7772 KB Output is correct
70 Correct 4 ms 8024 KB Output is correct
71 Correct 4 ms 8028 KB Output is correct
72 Correct 3 ms 7772 KB Output is correct
73 Correct 4 ms 8028 KB Output is correct
74 Correct 98 ms 50100 KB Output is correct
75 Correct 71 ms 35748 KB Output is correct
76 Correct 68 ms 35916 KB Output is correct
77 Correct 77 ms 40388 KB Output is correct
78 Correct 79 ms 49332 KB Output is correct
79 Correct 62 ms 39872 KB Output is correct
80 Correct 79 ms 44440 KB Output is correct
81 Correct 105 ms 52364 KB Output is correct
82 Correct 116 ms 55476 KB Output is correct
83 Correct 130 ms 62432 KB Output is correct
84 Correct 61 ms 40384 KB Output is correct
85 Correct 124 ms 57592 KB Output is correct
86 Correct 53 ms 22980 KB Output is correct
87 Correct 147 ms 39524 KB Output is correct
88 Correct 139 ms 39620 KB Output is correct
89 Correct 165 ms 43052 KB Output is correct
90 Correct 153 ms 55148 KB Output is correct
91 Correct 159 ms 51200 KB Output is correct
92 Correct 174 ms 46788 KB Output is correct
93 Correct 192 ms 55620 KB Output is correct
94 Correct 215 ms 59316 KB Output is correct
95 Correct 203 ms 66296 KB Output is correct
96 Correct 175 ms 43968 KB Output is correct
97 Correct 199 ms 51328 KB Output is correct