Submission #166043

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
166043	2019-11-30 11:53:03	errorgorn	Race (IOI11_race)	C++14	100 / 100	585 ms	87600 KiB

race

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#include "race.h"
#include <cstdio>
#include <set>
#include <vector>
#include <utility>
#include <algorithm>
using namespace std;
typedef pair<int,int> ii;
vector<ii> al[200005];
int offset[200005];
int offset2[200005];
set<ii> rope[200005];
int ans=1000000;
int k;
void dfs(int i,int p){
    rope[i].insert(ii(offset[i],offset2[i]));
    int target;
    set<ii>::iterator sit;
    for (auto it:al[i]){
        if (it.first==p) continue;
        offset[it.first]=offset[i]+it.second;
        offset2[it.first]=offset2[i]+1;
        dfs(it.first,i);
        if (rope[it.first].size()>rope[i].size()) swap(rope[it.first],rope[i]);
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57