oj.uz

Submission #675452

# Submission time Handle Problem Language Result Execution time Memory
675452 2022-12-27T09:37:56 Z Vahe Swapping Cities (APIO20_swap) C++17
7 / 100
 169 ms 8464 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 par[u] = 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 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 2 ms 340 KB Output is correct
9 Correct 40 ms 5148 KB Output is correct
10 Correct 41 ms 6208 KB Output is correct
11 Correct 42 ms 6224 KB Output is correct
12 Correct 43 ms 6464 KB Output is correct
13 Correct 45 ms 6456 KB Output is correct
14 Correct 41 ms 5260 KB Output is correct
15 Correct 134 ms 7844 KB Output is correct
16 Correct 119 ms 7692 KB Output is correct
17 Correct 126 ms 8020 KB Output is correct
18 Correct 135 ms 8020 KB Output is correct
19 Incorrect 72 ms 3412 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 143 ms 8028 KB Output is correct
4 Correct 154 ms 8196 KB Output is correct
5 Correct 153 ms 8364 KB Output is correct
6 Correct 137 ms 8132 KB Output is correct
7 Correct 169 ms 8464 KB Output is correct
8 Correct 141 ms 8092 KB Output is correct
9 Correct 139 ms 8124 KB Output is correct
10 Correct 155 ms 8120 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 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 2 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 1 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 2 ms 340 KB Output is correct
10 Correct 40 ms 5148 KB Output is correct
11 Correct 41 ms 6208 KB Output is correct
12 Correct 42 ms 6224 KB Output is correct
13 Correct 43 ms 6464 KB Output is correct
14 Correct 45 ms 6456 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 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 2 ms 340 KB Output is correct
9 Correct 40 ms 5148 KB Output is correct
10 Correct 41 ms 6208 KB Output is correct
11 Correct 42 ms 6224 KB Output is correct
12 Correct 43 ms 6464 KB Output is correct
13 Correct 45 ms 6456 KB Output is correct
14 Correct 41 ms 5260 KB Output is correct
15 Correct 134 ms 7844 KB Output is correct
16 Correct 119 ms 7692 KB Output is correct
17 Correct 126 ms 8020 KB Output is correct
18 Correct 135 ms 8020 KB Output is correct
19 Correct 143 ms 8028 KB Output is correct
20 Correct 154 ms 8196 KB Output is correct
21 Correct 153 ms 8364 KB Output is correct
22 Correct 137 ms 8132 KB Output is correct
23 Correct 169 ms 8464 KB Output is correct
24 Correct 141 ms 8092 KB Output is correct
25 Correct 139 ms 8124 KB Output is correct
26 Correct 155 ms 8120 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 0 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 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 2 ms 340 KB Output is correct
10 Correct 40 ms 5148 KB Output is correct
11 Correct 41 ms 6208 KB Output is correct
12 Correct 42 ms 6224 KB Output is correct
13 Correct 43 ms 6464 KB Output is correct
14 Correct 45 ms 6456 KB Output is correct
15 Correct 41 ms 5260 KB Output is correct
16 Correct 134 ms 7844 KB Output is correct
17 Correct 119 ms 7692 KB Output is correct
18 Correct 126 ms 8020 KB Output is correct
19 Correct 135 ms 8020 KB Output is correct
20 Correct 143 ms 8028 KB Output is correct
21 Correct 154 ms 8196 KB Output is correct
22 Correct 153 ms 8364 KB Output is correct
23 Correct 137 ms 8132 KB Output is correct
24 Correct 169 ms 8464 KB Output is correct
25 Correct 141 ms 8092 KB Output is correct
26 Correct 139 ms 8124 KB Output is correct
27 Correct 155 ms 8120 KB Output is correct
28 Incorrect 1 ms 340 KB Output isn't correct
29 Halted 0 ms 0 KB -