Submission #1274280

#	Time	Username	Problem	Language	Result	Execution time	Memory
1274280		nanaseyuzuki	Examination (JOI19_examination)	C++20	0 / 100	114 ms	12396 KiB

examination

#include <bits/stdc++.h>
// Author: Kazuki_Will_Win_VOI_8703
#define fi first
#define se second
#define pii pair<int, int>
#define int long long
#define all(a) a.begin(), a.end()
using namespace std;

const int mn = 5e5 + 5, bm = (1 << 11) + 1, mod = 1e9 + 7, offset = 5e4, B = 320 + 5;
const int inf = 1e9, base = 311;

int n, q, ans[mn];

struct Megumi{
    int s, t, c;
    bool operator<(const Megumi& other){
        return c > other.c;
    }
} e[mn];

struct Reina{
    int a, b, c, id;
    bool operator<(const Reina& other){
        return c > other.c;
    }
} qr[mn];

int bit[2][mn];

void add(int t, int u, int val){
    while(u <= 3e5){
        bit[t][u] += val;
        u += (u & -u);
    }
}

int get(int t, int u){
    int res = 0;
    while(u){
        res += bit[t][u];
        u -= (u & -u);
    }
    return res;
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin >> n >> q;
    vector <int> comp1, comp2;
    for(int i = 1; i <= n; i++){
        cin >> e[i].s >> e[i].t; e[i].c = e[i].s + e[i].t;
        comp1.push_back(e[i].s); comp2.push_back(e[i].t);
    }
    sort(e + 1, e + n + 1);

    for(int i = 1; i <= q; i++){
        cin >> qr[i].a >> qr[i].b >> qr[i].c;
        qr[i].c = max(qr[i].c, qr[i].a + qr[i].b);
        qr[i].id = i;
        comp1.push_back(qr[i].a); comp2.push_back(qr[i].b);
    }

    sort(all(comp1)); comp1.erase(unique(all(comp1)), comp1.end());
    sort(all(comp2)); comp2.erase(unique(all(comp2)), comp2.end());

    int ptr = 1, cnt = 0;
    for(int i = 1; i <= q; i++){
        while(ptr <= n && e[ptr].c >= qr[i].c){
            int id1 = lower_bound(comp1.begin(), comp1.end(), e[ptr].s) - comp1.begin() + 1;
            add(0, id1, 1);
            int id2 = lower_bound(comp2.begin(), comp2.end(), e[ptr].t) - comp2.begin() + 1;
            add(1, id2, 1);
            ptr ++, cnt ++;
        }
        int id1 = lower_bound(comp1.begin(), comp1.end(), qr[i].a) - comp1.begin() + 1;
        int id2 = lower_bound(comp2.begin(), comp2.end(), qr[i].b) - comp2.begin() + 1;
        ans[qr[i].id] = cnt - get(0, id1 - 1) - get(1, id2 - 1);
    }
    for(int i = 1; i <= q; i++) cout << ans[i] << '\n';
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 20
• Subtask 3: 0 / 21
• Subtask 4: 0 / 57