Submission #462613

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
462613	2021-08-11 00:12:16	JovanB	Railway (BOI17_railway)	C++17	100 / 100	155 ms	26928 KiB

railway

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#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef long double ld;
 
const int MAXLOG = 18;
 
int par[100005][MAXLOG+1];
vector <pair <int, int>> graf[100005];
int depth[100005];
int in[100005];
int out[100005];
int x[100005];
int pre[100005];
 
vector <int> res;
 
int tajm;
 
void dfs_pre(int v, int parent){
    depth[v] = depth[parent] + 1;
    par[v][0] = parent;
    for(int j=1; j<MAXLOG; j++){
        par[v][j] = par[par[v][j-1]][j-1];
    }
    in[v] = ++tajm;
    for(auto d : graf[v]){
        int c = d.first;
        if(c != parent) dfs_pre(c, v);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

railway.cpp: In function 'int main()':
railway.cpp:101:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |         for(int j=0; j<sad.size()-1; j++){
      |                      ~^~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25