oj.uz

Submission #674624

# Submission time Handle Problem Language Result Execution time Memory
674624 2022-12-25T13:05:52 Z Vahe Swapping Cities (APIO20_swap) C++17
7 / 100
 2000 ms 8448 KB 
#include "swap.h"
#include <iostream>
#include <vector>
#include <algorithm>
#include <climits>
using namespace std;
vector<vector<pair<int, int>>> gp;
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 par[u] = get(par[u]);
}

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

int go(int u, int w)
{
    if (p[u] == u || her[u] > w) return u;
    return go(p[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 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 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 33 ms 5132 KB Output is correct
10 Correct 42 ms 6284 KB Output is correct
11 Correct 42 ms 6144 KB Output is correct
12 Correct 43 ms 6456 KB Output is correct
13 Correct 98 ms 6452 KB Output is correct
14 Correct 42 ms 5312 KB Output is correct
15 Correct 128 ms 7836 KB Output is correct
16 Correct 123 ms 7744 KB Output is correct
17 Correct 128 ms 8012 KB Output is correct
18 Execution timed out 2076 ms 8128 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 132 ms 8068 KB Output is correct
4 Correct 130 ms 8092 KB Output is correct
5 Correct 142 ms 8448 KB Output is correct
6 Correct 129 ms 8080 KB Output is correct
7 Correct 141 ms 8348 KB Output is correct
8 Correct 130 ms 8108 KB Output is correct
9 Correct 131 ms 8228 KB Output is correct
10 Correct 133 ms 8152 KB Output is correct

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 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 0 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 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 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 340 KB Output is correct
10 Correct 33 ms 5132 KB Output is correct
11 Correct 42 ms 6284 KB Output is correct
12 Correct 42 ms 6144 KB Output is correct
13 Correct 43 ms 6456 KB Output is correct
14 Correct 98 ms 6452 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 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 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 33 ms 5132 KB Output is correct
10 Correct 42 ms 6284 KB Output is correct
11 Correct 42 ms 6144 KB Output is correct
12 Correct 43 ms 6456 KB Output is correct
13 Correct 98 ms 6452 KB Output is correct
14 Correct 42 ms 5312 KB Output is correct
15 Correct 128 ms 7836 KB Output is correct
16 Correct 123 ms 7744 KB Output is correct
17 Correct 128 ms 8012 KB Output is correct
18 Execution timed out 2076 ms 8128 KB Time limit exceeded
19 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 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 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 340 KB Output is correct
10 Correct 33 ms 5132 KB Output is correct
11 Correct 42 ms 6284 KB Output is correct
12 Correct 42 ms 6144 KB Output is correct
13 Correct 43 ms 6456 KB Output is correct
14 Correct 98 ms 6452 KB Output is correct
15 Correct 42 ms 5312 KB Output is correct
16 Correct 128 ms 7836 KB Output is correct
17 Correct 123 ms 7744 KB Output is correct
18 Correct 128 ms 8012 KB Output is correct
19 Execution timed out 2076 ms 8128 KB Time limit exceeded
20 Halted 0 ms 0 KB -