Submission #977568

#	Time	Username	Problem	Language	Result	Execution time	Memory
977568		Ning07	Swapping Cities (APIO20_swap)	C++17	6 / 100	82 ms	11216 KiB

swap

#include "swap.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;

int n, m;
int ok = 1, mx = -1;
vector<vector<pair<int, int>>> adj;
void init(int N, int M, std::vector<int> U, std::vector<int> V, std::vector<int> W) {
    n = N, m = M;
    adj.resize(n + 2);
    for (int i = 0; i < m; i++) {
        adj[U[i]].push_back(make_pair(V[i], W[i]));
        adj[V[i]].push_back(make_pair(U[i], W[i]));
        mx = max(mx, W[i]);
    }
    for (int i = 0; i < n; i++) {
        if (adj[i].size() <= 1) ok = 0;
    }
}

int getMinimumFuelCapacity(int X, int Y) {
    if (ok == 0) return -1;
    else return mx;
}

• Subtask 1: 6 / 6
• Subtask 2: 0 / 7
• Subtask 3: 0 / 17
• Subtask 4: 0 / 20
• Subtask 5: 0 / 23
• Subtask 6: 0 / 27