Submission #331479

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
331479	2020-11-28 16:28:00	rqi	Railway (BOI17_railway)	C++14	100 / 100	192 ms	27620 KiB

railway

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#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> pi;
typedef vector<int> vi;
typedef vector<pi> vpi;
#define f first
#define s second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) begin(x), end(x)
#define mp make_pair
const int mx = 100005;
int n, m, k;
int a[mx];
int b[mx];
vpi adj[mx];
vpi s[mx];
int etind[mx];
int edgeind[mx];
int curetind = 0;
void genET(int node, int prv = -1){
  etind[node] = ++curetind;
  for(auto u: adj[node]){
    if(u.f == prv) continue;
    genET(u.f, node);
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25