Submission #484193

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
484193	2021-11-02 10:57:44	FEDIKUS	경주 (Race) (IOI11_race)	C++17	100 / 100	382 ms	74980 KiB

race

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#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")
#include "race.h"
#include<bits/stdc++.h>
#define xx first
#define yy second
 
using namespace std;
 
const int maxn=2e5+10;
 
vector<pair<int,int> > g[maxn];
pair<pair<int,int> ,map<int,int> > s[maxn];
 
int merges(pair<pair<int,int> ,map<int,int> > &a,pair<pair<int,int> ,map<int,int> > &b,int c,int k){
    b.xx.xx+=c;
    b.xx.yy+=1;
    if(a.yy.size()<b.yy.size()) swap(a,b);
    int ret=INT_MAX;
    for(auto &i:b.yy){
        if(a.yy.find(k-i.xx-b.xx.xx-a.xx.xx)!=a.yy.end())
            ret=min(ret,a.yy[k-i.xx-b.xx.xx-a.xx.xx]+a.xx.yy+i.yy+b.xx.yy);
    }
    for(auto &i:b.yy){
        if(a.yy.find(i.xx+b.xx.xx-a.xx.xx)!=a.yy.end())
            a.yy[i.xx+b.xx.xx-a.xx.xx]=min(a.yy[i.xx+b.xx.xx-a.xx.xx],i.yy+b.xx.yy-a.xx.yy);
        else
            a.yy[i.xx+b.xx.xx-a.xx.xx]=i.yy+b.xx.yy-a.xx.yy;
    }
    return ret;
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57