제출 #998252

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
998252	2024-06-13 12:41:45	_shr104	Examination (JOI19_examination)	C++17	100 / 100	434 ms	45300 KiB

examination

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#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;
#define pb push_back
#define pf push_front
#define fi first
#define se second
const ll mod = 1e9+7, mxn = 3e5+14;
struct point {ll x, y, z, v, i;};
struct cmp
{
    bool operator() (point a, point b)
    {
        if (a.x != b.x) return a.x > b.x;
        else if (a.v != b.v) return a.v > b.v;
        else if (a.y != b.y) return a.y > b.y;
        else if (a.z != b.z) return a.z < b.z;
        return a.i < b.i;
    }
};
struct binary_indexed_tree
{
    ll b[mxn], n;
    binary_indexed_tree() {}
    binary_indexed_tree(ll _n) {n = _n; for (ll i = 0; i < mxn; i++) b[i] = 0;}
    ll l_bit(ll x) {return x&(-x);}
    void upd(ll x, ll v) {for (ll i = x; i > 0; i -= l_bit(i)) {b[i] += v;}}
    ll get(ll x) {ll ans = 0; for (ll i = x; i <= mxn; i += l_bit(i)) {ans += b[i];} return ans;}
} bit;
 
 
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• Subtask 2: 20 / 20
• Subtask 3: 21 / 21
• Subtask 4: 57 / 57