Submission #437652

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
437652	2021-06-26 17:59:23	Pajaraja	Fountain Parks (IOI21_parks)	C++17	100 / 100	696 ms	44124 KiB

parks

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#include "parks.h"
#include <bits/stdc++.h>
#define MAXN 200007
using namespace std;
map<pair<int,int>,int> ind;
std::vector<int> u, v, a, b, x, y, nd;
int dsu[MAXN];
int root(int u)
{
    while(dsu[u]!=u)
    {
        dsu[u]=dsu[dsu[u]];
        u=dsu[u];
    }
    return u;
}
void connect(int u,int v)
{
    int a=root(u),b=root(v);
    if(a==b) return;
    dsu[a]=b;
}
bool cmp(int p,int q) {return x[p]+y[p]>x[q]+y[q];}
void addroad(int p,int q)
{
    int x1=x[p],y1=y[p],x2=x[q],y2=y[q];
    u.push_back(p); v.push_back(q);
    connect(p,q);
    if(x1==x2)
    {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:62:16: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   62 |     if(u.size()!=n-1) return 0;
      |        ~~~~~~~~^~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20
• Subtask 6: 30 / 30