oj.uz

Submission #828131

# Submission time Handle Problem Language Result Execution time Memory
828131 2023-08-17T05:36:39 Z SUNWOOOOOOOO Swapping Cities (APIO20_swap) C++17
0 / 100
 2000 ms 6828 KB 
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
using tint = array <int, 3>;
const int mxN = 200005;
int n, m, deg[mxN];
tint edge[mxN];

struct dsu {
    tint G[mxN]; // node, is cycle, is deg3
    void init(){
        for (int i = 0; i < n; i++) G[i] = {i, 0, 0};
    }
    int find(int x){
        if (G[x][0] != x) G[x][0] = find(G[x][0]);
        return G[x][0];
    }
    void uni(int x, int y){
        x = find(x), y = find(y);
        if (x != y){
            G[y][0] = x;
            G[x][1] += G[y][1];
            G[x][2] += G[y][2];
        }
        else {
            G[x][1] = 1;
        }
    }
} dsu;

void init(int N, int M, vector<int> U, vector<int> V, vector<int> W) {
    n = N, m = M;
    for (int i = 0; i < m; i++) edge[i] = {W[i], U[i], V[i]};
    sort(edge, edge + m);
}

int getMinimumFuelCapacity(int X, int Y) {
    dsu.init();
    memset(deg, 0, sizeof deg);

    for (int i = 0; i < m; i++){
        if (++deg[edge[i][1]] >= 3) dsu.G[edge[i][1]][2] = 1;
        if (++deg[edge[i][2]] >= 3) dsu.G[edge[i][2]][2] = 1;
        dsu.uni(edge[i][1], edge[i][2]);

        X = dsu.find(X), Y = dsu.find(Y);
        if (X == Y && (dsu.G[X][1] || dsu.G[X][2])){
            return edge[i][0];
        }
    }
    return -1;
}

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 1108 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1104 KB Output is correct
8 Correct 1 ms 1108 KB Output is correct
9 Correct 29 ms 4084 KB Output is correct
10 Correct 39 ms 4604 KB Output is correct
11 Correct 40 ms 4656 KB Output is correct
12 Correct 42 ms 4792 KB Output is correct
13 Correct 42 ms 5052 KB Output is correct
14 Execution timed out 2081 ms 4220 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 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Execution timed out 2051 ms 6828 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 1108 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1104 KB Output is correct
8 Correct 1 ms 1108 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 1108 KB Output is correct
11 Incorrect 1 ms 1108 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct
8 Correct 1 ms 1104 KB Output is correct
9 Correct 1 ms 1108 KB Output is correct
10 Correct 29 ms 4084 KB Output is correct
11 Correct 39 ms 4604 KB Output is correct
12 Correct 40 ms 4656 KB Output is correct
13 Correct 42 ms 4792 KB Output is correct
14 Correct 42 ms 5052 KB Output is correct
15 Correct 1 ms 1108 KB Output is correct
16 Incorrect 1 ms 1108 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 1108 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1104 KB Output is correct
8 Correct 1 ms 1108 KB Output is correct
9 Correct 29 ms 4084 KB Output is correct
10 Correct 39 ms 4604 KB Output is correct
11 Correct 40 ms 4656 KB Output is correct
12 Correct 42 ms 4792 KB Output is correct
13 Correct 42 ms 5052 KB Output is correct
14 Execution timed out 2081 ms 4220 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct
8 Correct 1 ms 1104 KB Output is correct
9 Correct 1 ms 1108 KB Output is correct
10 Correct 29 ms 4084 KB Output is correct
11 Correct 39 ms 4604 KB Output is correct
12 Correct 40 ms 4656 KB Output is correct
13 Correct 42 ms 4792 KB Output is correct
14 Correct 42 ms 5052 KB Output is correct
15 Execution timed out 2081 ms 4220 KB Time limit exceeded
16 Halted 0 ms 0 KB -