Submission #422738

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
422738	2021-06-10 11:25:51	ACmachine	Space Pirate (JOI14_space_pirate)	C++17	47 / 100	1855 ms	524292 KiB

space_pirate

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#include <bits/stdc++.h>
using namespace std;
 
#define FOR(i, j, k, l) for(int i = (j); i < (k); i += (l))
#define FORD(i, j, k, l) for(int i = (j); i >= (k); i -= (l))
#define REP(i, n) FOR(i, 0, n, 1)
#define REPD(i, n) FORD(i, n, 0, 1)
#define pb push_back
const int INF = (int)1e9;
typedef long long ll;
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n; ll k;
    cin >> n >> k;
    vector<int> g(n);
    REP(i, n){
        cin >> g[i];
        g[i]--;
    }
    vector<vector<int>> dist(n, vector<int>(n, -1)); 
    vector<vector<int>> revdist(n, vector<int>(n, -1)); // who is at dist x?
    vector<int> maxdist(n);
    function<void(int, int, int)> dfs = [&](int v, int d, int s){
        dist[s][v] = d;
        if(dist[s][g[v]] == -1){
            dfs(g[v], d + 1, s);
        }
    };
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 37 / 37
• Subtask 3: 0 / 33
• Subtask 4: 0 / 20