Submission #395997

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
395997	2021-04-29 10:40:01	benedict0724	Stations (IOI20_stations)	C++17	100 / 100	1101 ms	756 KiB

stations

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#include "stations.h"
#include <vector>
#include <algorithm>
using namespace std;
vector<int> adj[1000];
vector<int> labels;
int sub[1000];
void dfs1(int x, int p)
{
    sub[x] = 1;
    for(int i : adj[x])
    {
        if(i == p) continue;
        dfs1(i, x);
        sub[x] += sub[i];
    }
}
void dfs2(int x, int p, int d, int l, int r){
    if(d == 0) labels[x] = l;
    else labels[x] = r;
    int tmp = l;
    if(d == 0) tmp = l + 1;
    for(int i : adj[x])
    {
        if(i == p) continue;
        dfs2(i, x, !d, tmp, tmp + sub[i] - 1);
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 8 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 61 / 61