oj.uz

Submission #725774

# Submission time Handle Problem Language Result Execution time Memory
725774 2023-04-18T03:30:59 Z Cookie Swapping Cities (APIO20_swap) C++14
100 / 100
 347 ms 61876 KB 
#include<bits/stdc++.h>
using namespace std;
#include "swap.h"

#include <cassert>
#include <cstdio>
#define ll long long
#define pb push_back
#define forr(i, a, b) for(int i = a; i < b; i++)
#define dorr(i, a, b) for(int i = a; i >= b; i--)
#define ld long double
#define vt vector

#define fi first
#define se second
#define pll pair<ll, ll>
#define pii pair<int, int>
const int mxn = 3e5 + 5;
struct E{
    int u, v, w;
    bool operator <(const E &b){
        return(w < b.w);
    }
};
int p[mxn + 1], best[mxn + 1], in[mxn + 1], id = 0, val[mxn + 1], dep[mxn + 1], up[mxn + 1][19];
bool ok[mxn + 1];
vt<int>adj[mxn + 1];
vt<E>edge;
int fp(int u){
    if(p[u] == u)return(u);
    return(p[u] = fp(p[u]));
}
void unon(int a, int b, int w){
    bool valid = (in[a] >= 3 || in[b] >= 3);
    a = fp(a); b = fp(b);
    valid |= (ok[a] || ok[b]);
    int pos = ++id; p[pos] = pos; val[pos] = w;
    if(a == b){
        // cycle 
        ok[pos] = 1;
        adj[pos].pb(a); p[a] = pos;
        return;
    }
    ok[pos] = valid;
    adj[pos].pb(a); adj[pos].pb(b); p[a] = p[b] = pos;
    val[pos] = w;
}
void dfs(int s, int mn){
    if(ok[s])mn = min(mn, val[s]);
    best[s] = mn;
    for(auto i: adj[s]){
        dep[i] = dep[s] + 1;
        up[i][0] = s;
        dfs(i, mn);
    }
}
int lca(int u, int v){
    if(dep[u] < dep[v])swap(u, v);
    int k = dep[u] - dep[v];
    for(int i = 0; i < 19; i++){
        if(k & (1 << i)){
            u = up[u][i];
        }
    }
    if(u == v)return(u);
    for(int i = 18; i >= 0; i--){
        if(up[u][i] != up[v][i]){
            u = up[u][i]; v = up[v][i];
        }
    }
    
    return(up[u][0]);
}
void init(int n, int m, vt<int>u, vt<int>v, vt<int>w){
     for(int i = 0; i < m; i++){
         edge.pb({u[i], v[i], w[i]});
     }
     id = n - 1;
     sort(edge.begin(), edge.end());
     for(int i = 0; i < n; i++){
         p[i] = i;
     }
     for(auto [u, v, w]: edge){
         
         in[u]++; in[v]++;
         unon(u, v, w);
     }
     dfs(id, 1e9 + 1);
     for(int i = 1; i < 19; i++){
         for(int j = 0; j <= id; j++){
             up[j][i] = up[up[j][i - 1]][i - 1];
         }
     }
}
int getMinimumFuelCapacity(int x, int y){
    int l = lca(x, y);
    if(best[l] == 1e9 + 1)return(-1);
    return(best[l]);
}

Compilation message

swap.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
swap.cpp:83:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   83 |      for(auto [u, v, w]: edge){
      |               ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7508 KB Output is correct
5 Correct 5 ms 7636 KB Output is correct
6 Correct 5 ms 7508 KB Output is correct
7 Correct 5 ms 7624 KB Output is correct
8 Correct 5 ms 7636 KB Output is correct
9 Correct 83 ms 28480 KB Output is correct
10 Correct 105 ms 33108 KB Output is correct
11 Correct 106 ms 32772 KB Output is correct
12 Correct 112 ms 34320 KB Output is correct
13 Correct 105 ms 37436 KB Output is correct
14 Correct 98 ms 28680 KB Output is correct
15 Correct 208 ms 37408 KB Output is correct
16 Correct 195 ms 36704 KB Output is correct
17 Correct 209 ms 38380 KB Output is correct
18 Correct 332 ms 41384 KB Output is correct
19 Correct 73 ms 16764 KB Output is correct
20 Correct 208 ms 38528 KB Output is correct
21 Correct 196 ms 37912 KB Output is correct
22 Correct 211 ms 39684 KB Output is correct
23 Correct 288 ms 42900 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 274 ms 43484 KB Output is correct
4 Correct 239 ms 45120 KB Output is correct
5 Correct 247 ms 44304 KB Output is correct
6 Correct 258 ms 44796 KB Output is correct
7 Correct 255 ms 44732 KB Output is correct
8 Correct 247 ms 43360 KB Output is correct
9 Correct 240 ms 44520 KB Output is correct
10 Correct 224 ms 43044 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7508 KB Output is correct
5 Correct 5 ms 7636 KB Output is correct
6 Correct 5 ms 7508 KB Output is correct
7 Correct 5 ms 7624 KB Output is correct
8 Correct 5 ms 7636 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7636 KB Output is correct
11 Correct 5 ms 7636 KB Output is correct
12 Correct 5 ms 7624 KB Output is correct
13 Correct 6 ms 7508 KB Output is correct
14 Correct 5 ms 7508 KB Output is correct
15 Correct 5 ms 7636 KB Output is correct
16 Correct 5 ms 7636 KB Output is correct
17 Correct 5 ms 7636 KB Output is correct
18 Correct 5 ms 7648 KB Output is correct
19 Correct 5 ms 7636 KB Output is correct
20 Correct 5 ms 7628 KB Output is correct
21 Correct 5 ms 7632 KB Output is correct
22 Correct 6 ms 7816 KB Output is correct
23 Correct 5 ms 7508 KB Output is correct
24 Correct 5 ms 7756 KB Output is correct
25 Correct 6 ms 7892 KB Output is correct
26 Correct 5 ms 7796 KB Output is correct
27 Correct 5 ms 7636 KB Output is correct
28 Correct 6 ms 7892 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7508 KB Output is correct
6 Correct 5 ms 7636 KB Output is correct
7 Correct 5 ms 7508 KB Output is correct
8 Correct 5 ms 7624 KB Output is correct
9 Correct 5 ms 7636 KB Output is correct
10 Correct 83 ms 28480 KB Output is correct
11 Correct 105 ms 33108 KB Output is correct
12 Correct 106 ms 32772 KB Output is correct
13 Correct 112 ms 34320 KB Output is correct
14 Correct 105 ms 37436 KB Output is correct
15 Correct 4 ms 7636 KB Output is correct
16 Correct 5 ms 7636 KB Output is correct
17 Correct 5 ms 7624 KB Output is correct
18 Correct 6 ms 7508 KB Output is correct
19 Correct 5 ms 7508 KB Output is correct
20 Correct 5 ms 7636 KB Output is correct
21 Correct 5 ms 7636 KB Output is correct
22 Correct 5 ms 7636 KB Output is correct
23 Correct 5 ms 7648 KB Output is correct
24 Correct 5 ms 7636 KB Output is correct
25 Correct 5 ms 7628 KB Output is correct
26 Correct 5 ms 7632 KB Output is correct
27 Correct 6 ms 7816 KB Output is correct
28 Correct 5 ms 7508 KB Output is correct
29 Correct 5 ms 7756 KB Output is correct
30 Correct 6 ms 7892 KB Output is correct
31 Correct 5 ms 7796 KB Output is correct
32 Correct 5 ms 7636 KB Output is correct
33 Correct 6 ms 7892 KB Output is correct
34 Correct 13 ms 11056 KB Output is correct
35 Correct 105 ms 33888 KB Output is correct
36 Correct 102 ms 33856 KB Output is correct
37 Correct 101 ms 33856 KB Output is correct
38 Correct 103 ms 33608 KB Output is correct
39 Correct 103 ms 33476 KB Output is correct
40 Correct 93 ms 31320 KB Output is correct
41 Correct 108 ms 34232 KB Output is correct
42 Correct 103 ms 34112 KB Output is correct
43 Correct 95 ms 38204 KB Output is correct
44 Correct 111 ms 34248 KB Output is correct
45 Correct 143 ms 46412 KB Output is correct
46 Correct 109 ms 33984 KB Output is correct
47 Correct 108 ms 34092 KB Output is correct
48 Correct 117 ms 38080 KB Output is correct
49 Correct 111 ms 44988 KB Output is correct
50 Correct 88 ms 36524 KB Output is correct
51 Correct 125 ms 41348 KB Output is correct
52 Correct 155 ms 49048 KB Output is correct
53 Correct 173 ms 51936 KB Output is correct
54 Correct 187 ms 58052 KB Output is correct
55 Correct 96 ms 37676 KB Output is correct
56 Correct 169 ms 53500 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7508 KB Output is correct
5 Correct 5 ms 7636 KB Output is correct
6 Correct 5 ms 7508 KB Output is correct
7 Correct 5 ms 7624 KB Output is correct
8 Correct 5 ms 7636 KB Output is correct
9 Correct 83 ms 28480 KB Output is correct
10 Correct 105 ms 33108 KB Output is correct
11 Correct 106 ms 32772 KB Output is correct
12 Correct 112 ms 34320 KB Output is correct
13 Correct 105 ms 37436 KB Output is correct
14 Correct 98 ms 28680 KB Output is correct
15 Correct 208 ms 37408 KB Output is correct
16 Correct 195 ms 36704 KB Output is correct
17 Correct 209 ms 38380 KB Output is correct
18 Correct 332 ms 41384 KB Output is correct
19 Correct 274 ms 43484 KB Output is correct
20 Correct 239 ms 45120 KB Output is correct
21 Correct 247 ms 44304 KB Output is correct
22 Correct 258 ms 44796 KB Output is correct
23 Correct 255 ms 44732 KB Output is correct
24 Correct 247 ms 43360 KB Output is correct
25 Correct 240 ms 44520 KB Output is correct
26 Correct 224 ms 43044 KB Output is correct
27 Correct 4 ms 7636 KB Output is correct
28 Correct 5 ms 7636 KB Output is correct
29 Correct 5 ms 7624 KB Output is correct
30 Correct 6 ms 7508 KB Output is correct
31 Correct 5 ms 7508 KB Output is correct
32 Correct 5 ms 7636 KB Output is correct
33 Correct 5 ms 7636 KB Output is correct
34 Correct 5 ms 7636 KB Output is correct
35 Correct 5 ms 7648 KB Output is correct
36 Correct 13 ms 11056 KB Output is correct
37 Correct 105 ms 33888 KB Output is correct
38 Correct 102 ms 33856 KB Output is correct
39 Correct 101 ms 33856 KB Output is correct
40 Correct 103 ms 33608 KB Output is correct
41 Correct 103 ms 33476 KB Output is correct
42 Correct 93 ms 31320 KB Output is correct
43 Correct 108 ms 34232 KB Output is correct
44 Correct 103 ms 34112 KB Output is correct
45 Correct 95 ms 38204 KB Output is correct
46 Correct 111 ms 34248 KB Output is correct
47 Correct 20 ms 11192 KB Output is correct
48 Correct 217 ms 38748 KB Output is correct
49 Correct 209 ms 38944 KB Output is correct
50 Correct 222 ms 38716 KB Output is correct
51 Correct 217 ms 38552 KB Output is correct
52 Correct 202 ms 37060 KB Output is correct
53 Correct 170 ms 31040 KB Output is correct
54 Correct 216 ms 39688 KB Output is correct
55 Correct 213 ms 38856 KB Output is correct
56 Correct 286 ms 42132 KB Output is correct
57 Correct 231 ms 39884 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7508 KB Output is correct
6 Correct 5 ms 7636 KB Output is correct
7 Correct 5 ms 7508 KB Output is correct
8 Correct 5 ms 7624 KB Output is correct
9 Correct 5 ms 7636 KB Output is correct
10 Correct 83 ms 28480 KB Output is correct
11 Correct 105 ms 33108 KB Output is correct
12 Correct 106 ms 32772 KB Output is correct
13 Correct 112 ms 34320 KB Output is correct
14 Correct 105 ms 37436 KB Output is correct
15 Correct 98 ms 28680 KB Output is correct
16 Correct 208 ms 37408 KB Output is correct
17 Correct 195 ms 36704 KB Output is correct
18 Correct 209 ms 38380 KB Output is correct
19 Correct 332 ms 41384 KB Output is correct
20 Correct 274 ms 43484 KB Output is correct
21 Correct 239 ms 45120 KB Output is correct
22 Correct 247 ms 44304 KB Output is correct
23 Correct 258 ms 44796 KB Output is correct
24 Correct 255 ms 44732 KB Output is correct
25 Correct 247 ms 43360 KB Output is correct
26 Correct 240 ms 44520 KB Output is correct
27 Correct 224 ms 43044 KB Output is correct
28 Correct 4 ms 7636 KB Output is correct
29 Correct 5 ms 7636 KB Output is correct
30 Correct 5 ms 7624 KB Output is correct
31 Correct 6 ms 7508 KB Output is correct
32 Correct 5 ms 7508 KB Output is correct
33 Correct 5 ms 7636 KB Output is correct
34 Correct 5 ms 7636 KB Output is correct
35 Correct 5 ms 7636 KB Output is correct
36 Correct 5 ms 7648 KB Output is correct
37 Correct 13 ms 11056 KB Output is correct
38 Correct 105 ms 33888 KB Output is correct
39 Correct 102 ms 33856 KB Output is correct
40 Correct 101 ms 33856 KB Output is correct
41 Correct 103 ms 33608 KB Output is correct
42 Correct 103 ms 33476 KB Output is correct
43 Correct 93 ms 31320 KB Output is correct
44 Correct 108 ms 34232 KB Output is correct
45 Correct 103 ms 34112 KB Output is correct
46 Correct 95 ms 38204 KB Output is correct
47 Correct 111 ms 34248 KB Output is correct
48 Correct 20 ms 11192 KB Output is correct
49 Correct 217 ms 38748 KB Output is correct
50 Correct 209 ms 38944 KB Output is correct
51 Correct 222 ms 38716 KB Output is correct
52 Correct 217 ms 38552 KB Output is correct
53 Correct 202 ms 37060 KB Output is correct
54 Correct 170 ms 31040 KB Output is correct
55 Correct 216 ms 39688 KB Output is correct
56 Correct 213 ms 38856 KB Output is correct
57 Correct 286 ms 42132 KB Output is correct
58 Correct 231 ms 39884 KB Output is correct
59 Correct 73 ms 16764 KB Output is correct
60 Correct 208 ms 38528 KB Output is correct
61 Correct 196 ms 37912 KB Output is correct
62 Correct 211 ms 39684 KB Output is correct
63 Correct 288 ms 42900 KB Output is correct
64 Correct 5 ms 7636 KB Output is correct
65 Correct 5 ms 7628 KB Output is correct
66 Correct 5 ms 7632 KB Output is correct
67 Correct 6 ms 7816 KB Output is correct
68 Correct 5 ms 7508 KB Output is correct
69 Correct 5 ms 7756 KB Output is correct
70 Correct 6 ms 7892 KB Output is correct
71 Correct 5 ms 7796 KB Output is correct
72 Correct 5 ms 7636 KB Output is correct
73 Correct 6 ms 7892 KB Output is correct
74 Correct 143 ms 46412 KB Output is correct
75 Correct 109 ms 33984 KB Output is correct
76 Correct 108 ms 34092 KB Output is correct
77 Correct 117 ms 38080 KB Output is correct
78 Correct 111 ms 44988 KB Output is correct
79 Correct 88 ms 36524 KB Output is correct
80 Correct 125 ms 41348 KB Output is correct
81 Correct 155 ms 49048 KB Output is correct
82 Correct 173 ms 51936 KB Output is correct
83 Correct 187 ms 58052 KB Output is correct
84 Correct 96 ms 37676 KB Output is correct
85 Correct 169 ms 53500 KB Output is correct
86 Correct 66 ms 21924 KB Output is correct
87 Correct 212 ms 38868 KB Output is correct
88 Correct 206 ms 38824 KB Output is correct
89 Correct 238 ms 41496 KB Output is correct
90 Correct 185 ms 51100 KB Output is correct
91 Correct 189 ms 47952 KB Output is correct
92 Correct 278 ms 45076 KB Output is correct
93 Correct 287 ms 53136 KB Output is correct
94 Correct 347 ms 56396 KB Output is correct
95 Correct 286 ms 61876 KB Output is correct
96 Correct 333 ms 42436 KB Output is correct
97 Correct 336 ms 49460 KB Output is correct