Submission #809070

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
809070	2023-08-05 15:29:21	puppy	Fountain Parks (IOI21_parks)	C++17	30 / 100	112 ms	21644 KiB

parks

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#include "parks.h"
#include <vector>
using namespace std;
int coord[3][100005];
bool bench[4][100005];
struct UnionFind
{
    vector<int> par;
    UnionFind(int N)
    {
        par.resize(N+1);
        for (int i = 0; i <= N; i++) par[i] = i;
    }
    int fin(int v)
    {
        return v == par[v] ? v : (par[v] = fin(par[v]));
    }
    void uni(int u, int v)
    {
        par[fin(u)] = fin(v);
    }
    bool isuni(int u, int v)
    {
        return fin(u) == fin(v);
    }
};
int construct_roads(std::vector<int> x, std::vector<int> y) {
    int N = x.size();
    fill(&coord[0][0], &coord[2][100005], -1);
 
 
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Compilation message (stderr)

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:80:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   80 |         int xc = x[p.first] + x[p.second] >> 1;

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30