Submission #471739

#	Time	Username	Problem	Language	Result	Execution time	Memory
471739		blue	Jousting tournament (IOI12_tournament)	C++17	0 / 100	575 ms	10104 KiB

tournament

#include <vector>
using namespace std;

/*
N knights
C rounds S[i] - E[i]
R-ranked late knight
K = initial ordering of present knights.
*/

const int INF = 1'000'000'000;

struct segtree
{
    int l;
    int r;

    int mn = 0;
    int mx = 0;
    int lp = 0;

    segtree* left = NULL;
    segtree* right = NULL;

    segtree()
    {
        ;
    }

    segtree(int L, int R)
    {
        l = L;
        r = R;
        if(l == r) return;
        int m = (l+r)/2;
        left = new segtree(l, m);
        right = new segtree(m+1, r);
    }

    void add(int L, int R, int V)
    {
        if(R < l || r < L) return;
        else if(L <= l && r <= R)
        {
            lp += V;
            mn += V;
            mx += V;
        }
        else
        {
            left->add(L, R, V);
            right->add(L, R, V);
            mn = lp + min(left->mn, right->mn);
            mx = lp + max(left->mx, right->mx);
        }
    }

    int rangemin(int L, int R)
    {
        if(R < l || r < L) return INF;
        else if(L <= l && r <= R) return mn;
        else return lp + min(left->rangemin(L, R), right->rangemin(L, R));
    }

    int rangemax(int L, int R)
    {
        if(R < l || r < L) return -1 * INF;
        else if(L <= l && r <= R) return mx;
        else return lp + max(left->rangemax(L, R), right->rangemax(L, R));
    }
};

int GetBestPosition(int N, int C, int R, int *K, int *S, int *E)
{
    segtree ST(0, 99'999);
    for(int i = 0; i < 100'000 * 20; i++)
        ST.add(23, 57878, +4);

    return 0;
}

• Subtask 1: 0 / 17
• Subtask 2: 0 / 32
• Subtask 3: 0 / 51