oj.uz

Submission #674678

# Submission time Handle Problem Language Result Execution time Memory
674678 2022-12-25T18:57:51 Z Vahe Swapping Cities (APIO20_swap) C++17
7 / 100
 163 ms 10428 KB 
#include "swap.h"
#include <iostream>
#include <vector>
#include <algorithm>
#include <climits>
using namespace std;
int n, m;
vector<int> u_, v_, w, ver, var, par, P, p, her, sizes;

int get(int u)
{
    if (u == par[u]) return u;
    return get(par[u]);
}

void union_chains(int u, int v, int w)
{
    int a = get(u), b = get(v);
    if (a == b)
    {
        P[a] = min(P[a], w);
        return;
    }
    if (sizes[a] < sizes[b]) swap(a, b), swap(u, v);
    sizes[a] += sizes[b];
    par[v] = par[u];
    her[v] = w;
    if      (u == ver[a] && v == ver[b]) ver[a] = var[b];
    else if (u == ver[a] && v == var[b]) ver[a] = ver[b];
    else if (u == var[a] && v == ver[b]) var[a] = var[b];
    else if (u == var[a] && v == var[b]) var[a] = ver[b];
    else ver[a] = -1, var[a] = -1, P[a] = min(P[a], w);
}

int go(int u, int w)
{
    if (par[u] == u || her[u] > w) return u;
    return go(par[u], w);
}

void init(int N, int M, vector<int> U, vector<int> V, vector<int> W) {
    n = N, m = M;
    vector<pair<int, pair<int, int>>> kox;
    for (int i = 0; i < m; i++) kox.push_back({ W[i], {U[i], V[i]} });
    sort(kox.begin(), kox.end());
    ver = var = par = sizes = P = her = p = vector<int>(n);
    for (int i = 0; i < n; i++) ver[i] = var[i] = par[i] = p[i] = i, sizes[i] = 1, her[i] = P[i] = INT_MAX;
    for (int i = 0; i < m; i++)
    {
        int u = kox[i].second.first, v = kox[i].second.second;
        union_chains(u, v, kox[i].first);
    }
}

int getMinimumFuelCapacity(int X, int Y) {
    long long l = 0, r = 2e9;
    while (l + 1 < r)
    {
        int mij = l + (r - l) / 2;
        int a = go(X, mij), b = go(Y, mij);
        if (a == b && P[get(a)] <= mij) r = mij;
        else l = mij;
    }
    return r == 2e9 ? -1 : r;
}

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 296 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 35 ms 6848 KB Output is correct
10 Correct 47 ms 8384 KB Output is correct
11 Correct 42 ms 8204 KB Output is correct
12 Correct 45 ms 8596 KB Output is correct
13 Correct 43 ms 8604 KB Output is correct
14 Correct 41 ms 7216 KB Output is correct
15 Correct 129 ms 10072 KB Output is correct
16 Correct 146 ms 9760 KB Output is correct
17 Correct 128 ms 10184 KB Output is correct
18 Correct 120 ms 10088 KB Output is correct
19 Incorrect 77 ms 5332 KB Output isn't correct
20 Halted 0 ms 0 KB -

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 151 ms 10092 KB Output is correct
4 Correct 141 ms 10228 KB Output is correct
5 Correct 157 ms 10416 KB Output is correct
6 Correct 138 ms 10124 KB Output is correct
7 Correct 163 ms 10428 KB Output is correct
8 Correct 146 ms 10136 KB Output is correct
9 Correct 144 ms 10272 KB Output is correct
10 Correct 159 ms 10188 KB Output is correct

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 296 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Incorrect 1 ms 340 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 312 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 35 ms 6848 KB Output is correct
11 Correct 47 ms 8384 KB Output is correct
12 Correct 42 ms 8204 KB Output is correct
13 Correct 45 ms 8596 KB Output is correct
14 Correct 43 ms 8604 KB Output is correct
15 Incorrect 1 ms 340 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 296 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 35 ms 6848 KB Output is correct
10 Correct 47 ms 8384 KB Output is correct
11 Correct 42 ms 8204 KB Output is correct
12 Correct 45 ms 8596 KB Output is correct
13 Correct 43 ms 8604 KB Output is correct
14 Correct 41 ms 7216 KB Output is correct
15 Correct 129 ms 10072 KB Output is correct
16 Correct 146 ms 9760 KB Output is correct
17 Correct 128 ms 10184 KB Output is correct
18 Correct 120 ms 10088 KB Output is correct
19 Correct 151 ms 10092 KB Output is correct
20 Correct 141 ms 10228 KB Output is correct
21 Correct 157 ms 10416 KB Output is correct
22 Correct 138 ms 10124 KB Output is correct
23 Correct 163 ms 10428 KB Output is correct
24 Correct 146 ms 10136 KB Output is correct
25 Correct 144 ms 10272 KB Output is correct
26 Correct 159 ms 10188 KB Output is correct
27 Incorrect 1 ms 340 KB Output isn't correct
28 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 312 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 35 ms 6848 KB Output is correct
11 Correct 47 ms 8384 KB Output is correct
12 Correct 42 ms 8204 KB Output is correct
13 Correct 45 ms 8596 KB Output is correct
14 Correct 43 ms 8604 KB Output is correct
15 Correct 41 ms 7216 KB Output is correct
16 Correct 129 ms 10072 KB Output is correct
17 Correct 146 ms 9760 KB Output is correct
18 Correct 128 ms 10184 KB Output is correct
19 Correct 120 ms 10088 KB Output is correct
20 Correct 151 ms 10092 KB Output is correct
21 Correct 141 ms 10228 KB Output is correct
22 Correct 157 ms 10416 KB Output is correct
23 Correct 138 ms 10124 KB Output is correct
24 Correct 163 ms 10428 KB Output is correct
25 Correct 146 ms 10136 KB Output is correct
26 Correct 144 ms 10272 KB Output is correct
27 Correct 159 ms 10188 KB Output is correct
28 Incorrect 1 ms 340 KB Output isn't correct
29 Halted 0 ms 0 KB -