Submission #321449

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
321449	2020-11-12 11:20:05	grt	Stations (IOI20_stations)	C++17	100 / 100	936 ms	1284 KiB

stations

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#include <bits/stdc++.h>
using namespace std;
using vi = vector<int>;
using ll = long long;
using pi = pair<int,int>;
#define ST first
#define ND second
#define PB push_back
const int nax = 1000 + 10;
vi V[nax];
bool visited[nax];
int cur;
int num[nax], dep[nax];
void dfs(int x) {
    visited[x] = 1;
    if(dep[x]%2==0) {
        num[x] = cur;
        cur++;
    }
    for(int nbh : V[x]) if(!visited[nbh]) {
        dep[nbh] = dep[x] + 1;
        dfs(nbh);
    }
    if(dep[x]%2==1) {
        num[x] = cur;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 8 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 61 / 61