Submission #316104

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
316104	2020-10-25 08:25:06	moonrabbit2	Roller Coaster Railroad (IOI16_railroad)	C++17	100 / 100	346 ms	53736 KiB

railroad

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#include "railroad.h"
#include <bits/stdc++.h>
#define N 500005
#define x first
#define y second
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
struct edge{ll c;int u,v;};
int n,c,group[N],c_g,p[N],en,x;
ll ans,sum[N],from[N];
vector<int> vec;
vector<int> g1[N];
edge g2[N];
int fi(int x)
{
    if(p[x]==x)
        return x;
    return p[x]=fi(p[x]);
}
void un(int x,int y)
{
    x=fi(x),y=fi(y);
    if(x==y)
        return;
    p[y]=x;
}
void dfs(int curr)
{
    group[curr]=c_g;
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 23 / 23
• Subtask 3: 30 / 30
• Subtask 4: 36 / 36