Submission #672737

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
672737	2022-12-17 21:36:22	finn__	Regions (IOI09_regions)	C++17	100 / 100	4192 ms	42692 KiB

regions

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#include <bits/stdc++.h>
using namespace std;
vector<vector<unsigned>> g;
vector<unsigned> h, y, z;
unsigned preorder(unsigned u, unsigned p, unsigned i = 0)
{
    y[u] = i++;
    for (unsigned v : g[u])
        if (v != p)
            i = preorder(v, u, i);
    z[u] = i;
    return i;
}
struct interval
{
    unsigned i, j, v;
};
void buidl_intv(
    unsigned u, unsigned p, vector<vector<interval>> &intv,
    vector<unsigned> &reg_end, vector<unsigned> &num_reg)
{
    if (y[u])
    {
        intv[h[u]].push_back({reg_end[h[u]], y[u] - 1, num_reg[h[u]]});
        reg_end[h[u]] = y[u];
    }
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 85 / 85