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Submission #764644

# Submission time Handle Problem Language Result Execution time Memory
764644 2023-06-23T17:21:59 Z raysh07 Swapping Cities (APIO20_swap) C++17
37 / 100
 2000 ms 7268 KB 
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
 
struct edge{
    int u, v, w;
};

int n, m;
const int maxn = 1e5 + 69;
vector <edge> e;
int root[maxn], deg[maxn], edg[maxn];

int find(int x){
    if (x == root[x]) return x;
    return root[x] = find(root[x]);
}

void unite(int x, int y){
    x = find(x); y = find(y);
    if (x == y) {
        edg[x]++;
        return;
    }
    root[y] = x;
    edg[x] += edg[y];
}
 
void init(int N, int M, vector<int> U, vector<int> V, vector<int> W) {
    n = N;
    m = M;
    e.resize(m);
    for (int i = 0; i < m; i++) {
        e[i].u = U[i];
        e[i].v = V[i];
        e[i].w = W[i];
    }
}
 
int getMinimumFuelCapacity(int x, int y) {
    int l = 0, r = 1e9 + 1;
    while (l != r){
        int mid = (l + r)/2;
        for (int i = 0; i < n; i++){
            root[i] = i;
            edg[i] = 0;
            deg[i] = 0;
        }
        
        for (int i = 0; i < m; i++){
            if (e[i].w > mid) continue;
            deg[e[i].u]++;
            deg[e[i].v]++;
            unite(e[i].u, e[i].v);
        }
        
        bool found = false;
        if (find(x) != find(y)) {
            l = mid + 1;
            continue;
        }
        
        if (edg[find(x)]) {
            found = true;
        }
        
        for (int i = 0; i < n; i++){
            if (find(i) == find(x) && deg[i] >= 3) //can turn here 
            found = true;
        }
        
        if (found) r = mid;
        else l = mid + 1;
    }
    if (l > 1e9) return -1;
    return l;
}

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 106 ms 3072 KB Output is correct
10 Correct 251 ms 3692 KB Output is correct
11 Correct 309 ms 3636 KB Output is correct
12 Correct 322 ms 3820 KB Output is correct
13 Correct 396 ms 3892 KB Output is correct
14 Execution timed out 2078 ms 3256 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Execution timed out 2082 ms 5756 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 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 2 ms 356 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 3 ms 340 KB Output is correct
26 Correct 3 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 3 ms 340 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 106 ms 3072 KB Output is correct
11 Correct 251 ms 3692 KB Output is correct
12 Correct 309 ms 3636 KB Output is correct
13 Correct 322 ms 3820 KB Output is correct
14 Correct 396 ms 3892 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 2 ms 356 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 ms 340 KB Output is correct
29 Correct 3 ms 340 KB Output is correct
30 Correct 3 ms 340 KB Output is correct
31 Correct 3 ms 340 KB Output is correct
32 Correct 2 ms 340 KB Output is correct
33 Correct 3 ms 340 KB Output is correct
34 Correct 11 ms 820 KB Output is correct
35 Correct 365 ms 3820 KB Output is correct
36 Correct 359 ms 3812 KB Output is correct
37 Correct 391 ms 3796 KB Output is correct
38 Correct 352 ms 3796 KB Output is correct
39 Correct 391 ms 3772 KB Output is correct
40 Correct 381 ms 3480 KB Output is correct
41 Correct 400 ms 3816 KB Output is correct
42 Correct 372 ms 3820 KB Output is correct
43 Correct 336 ms 3812 KB Output is correct
44 Correct 423 ms 3816 KB Output is correct
45 Correct 502 ms 5452 KB Output is correct
46 Correct 364 ms 3796 KB Output is correct
47 Correct 399 ms 3816 KB Output is correct
48 Correct 541 ms 4168 KB Output is correct
49 Correct 72 ms 5968 KB Output is correct
50 Correct 98 ms 4544 KB Output is correct
51 Correct 345 ms 4752 KB Output is correct
52 Correct 503 ms 5964 KB Output is correct
53 Correct 485 ms 6508 KB Output is correct
54 Correct 586 ms 7268 KB Output is correct
55 Correct 359 ms 3824 KB Output is correct
56 Correct 718 ms 6304 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 106 ms 3072 KB Output is correct
10 Correct 251 ms 3692 KB Output is correct
11 Correct 309 ms 3636 KB Output is correct
12 Correct 322 ms 3820 KB Output is correct
13 Correct 396 ms 3892 KB Output is correct
14 Execution timed out 2078 ms 3256 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 106 ms 3072 KB Output is correct
11 Correct 251 ms 3692 KB Output is correct
12 Correct 309 ms 3636 KB Output is correct
13 Correct 322 ms 3820 KB Output is correct
14 Correct 396 ms 3892 KB Output is correct
15 Execution timed out 2078 ms 3256 KB Time limit exceeded
16 Halted 0 ms 0 KB -