oj.uz

Submission #674892

# Submission time Handle Problem Language Result Execution time Memory
674892 2022-12-26T13:12:33 Z Zhora_004 Swapping Cities (APIO20_swap) C++17
7 / 100
 170 ms 12588 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[b] = a;
    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);
    }
    //for (int i = 0; i < n; i++)
    //{
    //    cout << i << ' ' << par[i] << endl;
    //}
}
 
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 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 372 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 312 KB Output is correct
9 Correct 35 ms 6816 KB Output is correct
10 Correct 43 ms 8256 KB Output is correct
11 Correct 43 ms 8192 KB Output is correct
12 Correct 46 ms 8624 KB Output is correct
13 Correct 44 ms 8640 KB Output is correct
14 Correct 43 ms 7212 KB Output is correct
15 Correct 129 ms 12180 KB Output is correct
16 Correct 130 ms 11988 KB Output is correct
17 Correct 137 ms 12588 KB Output is correct
18 Correct 126 ms 12440 KB Output is correct
19 Incorrect 75 ms 5340 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 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 159 ms 11944 KB Output is correct
4 Correct 152 ms 11976 KB Output is correct
5 Correct 147 ms 12324 KB Output is correct
6 Correct 142 ms 11960 KB Output is correct
7 Correct 142 ms 12320 KB Output is correct
8 Correct 144 ms 11940 KB Output is correct
9 Correct 170 ms 12096 KB Output is correct
10 Correct 144 ms 11900 KB Output is correct

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 372 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 312 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 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 372 KB Output is correct
7 Correct 1 ms 312 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 35 ms 6816 KB Output is correct
11 Correct 43 ms 8256 KB Output is correct
12 Correct 43 ms 8192 KB Output is correct
13 Correct 46 ms 8624 KB Output is correct
14 Correct 44 ms 8640 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 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 372 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 312 KB Output is correct
9 Correct 35 ms 6816 KB Output is correct
10 Correct 43 ms 8256 KB Output is correct
11 Correct 43 ms 8192 KB Output is correct
12 Correct 46 ms 8624 KB Output is correct
13 Correct 44 ms 8640 KB Output is correct
14 Correct 43 ms 7212 KB Output is correct
15 Correct 129 ms 12180 KB Output is correct
16 Correct 130 ms 11988 KB Output is correct
17 Correct 137 ms 12588 KB Output is correct
18 Correct 126 ms 12440 KB Output is correct
19 Correct 159 ms 11944 KB Output is correct
20 Correct 152 ms 11976 KB Output is correct
21 Correct 147 ms 12324 KB Output is correct
22 Correct 142 ms 11960 KB Output is correct
23 Correct 142 ms 12320 KB Output is correct
24 Correct 144 ms 11940 KB Output is correct
25 Correct 170 ms 12096 KB Output is correct
26 Correct 144 ms 11900 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 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 372 KB Output is correct
7 Correct 1 ms 312 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 35 ms 6816 KB Output is correct
11 Correct 43 ms 8256 KB Output is correct
12 Correct 43 ms 8192 KB Output is correct
13 Correct 46 ms 8624 KB Output is correct
14 Correct 44 ms 8640 KB Output is correct
15 Correct 43 ms 7212 KB Output is correct
16 Correct 129 ms 12180 KB Output is correct
17 Correct 130 ms 11988 KB Output is correct
18 Correct 137 ms 12588 KB Output is correct
19 Correct 126 ms 12440 KB Output is correct
20 Correct 159 ms 11944 KB Output is correct
21 Correct 152 ms 11976 KB Output is correct
22 Correct 147 ms 12324 KB Output is correct
23 Correct 142 ms 11960 KB Output is correct
24 Correct 142 ms 12320 KB Output is correct
25 Correct 144 ms 11940 KB Output is correct
26 Correct 170 ms 12096 KB Output is correct
27 Correct 144 ms 11900 KB Output is correct
28 Incorrect 1 ms 340 KB Output isn't correct
29 Halted 0 ms 0 KB -