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답안 #736830

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
736830 2023-05-06T09:26:31 Z sandry24 Examination (JOI19_examination) C++17
100 / 100
 227 ms 14028 KB 
#include <bits/stdc++.h>
//#include "secret.h"
using namespace std;
 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> pi;
#define pb push_back
#define mp make_pair
#define f first
#define s second

int maxsz = 400005;

struct query {
    int a;
    int b;
    int sum;
    int ind;
};

struct BIT{
    int n;
    vi bit;

    BIT(int n_now){
        n = n_now;
        bit = vi(n_now+1);
    }

    void add(int x, int delta){
        for(; x <= n; x += x & -x)
            bit[x] += delta;
    }

    int get(int x){
        int sum = 0;
        for(; x > 0; x -= x & -x)
            sum += bit[x];
        return sum;
    }

    int get(int l, int r){
        return get(r) - get(l-1);
    }
};

bool cmp(query a, query b){
    if(a.sum != b.sum)
        return a.sum > b.sum;
    return a.ind < b.ind;
}
 
void solve(){
    int n, q;
    cin >> n >> q;
    vector<query> queries;
    vi ans(q);
    vi vals;
    for(int i = 0; i < n; i++){
        int a, b;
        cin >> a >> b;
        vals.pb(a);
        vals.pb(b);
        queries.pb({a, b, a+b, -1});
    }
    for(int i = 0; i < q; i++){
        int a, b, c;
        cin >> a >> b >> c;
        vals.pb(a);
        vals.pb(b);
        queries.pb({a, b, max(a+b, c), i});
    }
    sort(vals.begin(), vals.end());

    auto compress = [&](int a){
        return lower_bound(vals.begin(), vals.end(), a) - vals.begin() + 1;
    };

    int people = 0;
    BIT a(maxsz), b(maxsz);
    sort(queries.begin(), queries.end(), cmp);
    for(auto x : queries){
        if(x.ind == -1){
            a.add(compress(x.a), 1);
            b.add(compress(x.b), 1);
            people++;
        } else {
            ans[x.ind] = a.get(compress(x.a), maxsz) + b.get(compress(x.b), maxsz) - people;
        }
    }
    for(int i = 0; i < q; i++)
        cout << ans[i] << '\n';
}

int main(){
    //freopen("input.txt", "r", stdin);
    //freopen("test.out", "w", stdout);
    ios::sync_with_stdio(0); cin.tie(0);
    int t = 1;
    //cin >> t;
    while(t--){
        solve();
    }
}

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3412 KB Output is correct
2 Correct 2 ms 3396 KB Output is correct
3 Correct 2 ms 3412 KB Output is correct
4 Correct 2 ms 3412 KB Output is correct
5 Correct 2 ms 3412 KB Output is correct
6 Correct 2 ms 3392 KB Output is correct
7 Correct 7 ms 3916 KB Output is correct
8 Correct 9 ms 3924 KB Output is correct
9 Correct 7 ms 3924 KB Output is correct
10 Correct 5 ms 3800 KB Output is correct
11 Correct 5 ms 3796 KB Output is correct
12 Correct 4 ms 3796 KB Output is correct
13 Correct 6 ms 3792 KB Output is correct
14 Correct 6 ms 3796 KB Output is correct
15 Correct 6 ms 3796 KB Output is correct
16 Correct 4 ms 3808 KB Output is correct
17 Correct 5 ms 3796 KB Output is correct
18 Correct 6 ms 3796 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 176 ms 11592 KB Output is correct
2 Correct 160 ms 11576 KB Output is correct
3 Correct 175 ms 11556 KB Output is correct
4 Correct 109 ms 10904 KB Output is correct
5 Correct 112 ms 10820 KB Output is correct
6 Correct 81 ms 10080 KB Output is correct
7 Correct 171 ms 11456 KB Output is correct
8 Correct 156 ms 11484 KB Output is correct
9 Correct 157 ms 11420 KB Output is correct
10 Correct 102 ms 10668 KB Output is correct
11 Correct 103 ms 10792 KB Output is correct
12 Correct 81 ms 9716 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 176 ms 11592 KB Output is correct
2 Correct 160 ms 11576 KB Output is correct
3 Correct 175 ms 11556 KB Output is correct
4 Correct 109 ms 10904 KB Output is correct
5 Correct 112 ms 10820 KB Output is correct
6 Correct 81 ms 10080 KB Output is correct
7 Correct 171 ms 11456 KB Output is correct
8 Correct 156 ms 11484 KB Output is correct
9 Correct 157 ms 11420 KB Output is correct
10 Correct 102 ms 10668 KB Output is correct
11 Correct 103 ms 10792 KB Output is correct
12 Correct 81 ms 9716 KB Output is correct
13 Correct 167 ms 12020 KB Output is correct
14 Correct 178 ms 11968 KB Output is correct
15 Correct 176 ms 11488 KB Output is correct
16 Correct 116 ms 11164 KB Output is correct
17 Correct 120 ms 11224 KB Output is correct
18 Correct 92 ms 10080 KB Output is correct
19 Correct 172 ms 11932 KB Output is correct
20 Correct 161 ms 11992 KB Output is correct
21 Correct 204 ms 11944 KB Output is correct
22 Correct 114 ms 10696 KB Output is correct
23 Correct 106 ms 10664 KB Output is correct
24 Correct 128 ms 9672 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3412 KB Output is correct
2 Correct 2 ms 3396 KB Output is correct
3 Correct 2 ms 3412 KB Output is correct
4 Correct 2 ms 3412 KB Output is correct
5 Correct 2 ms 3412 KB Output is correct
6 Correct 2 ms 3392 KB Output is correct
7 Correct 7 ms 3916 KB Output is correct
8 Correct 9 ms 3924 KB Output is correct
9 Correct 7 ms 3924 KB Output is correct
10 Correct 5 ms 3800 KB Output is correct
11 Correct 5 ms 3796 KB Output is correct
12 Correct 4 ms 3796 KB Output is correct
13 Correct 6 ms 3792 KB Output is correct
14 Correct 6 ms 3796 KB Output is correct
15 Correct 6 ms 3796 KB Output is correct
16 Correct 4 ms 3808 KB Output is correct
17 Correct 5 ms 3796 KB Output is correct
18 Correct 6 ms 3796 KB Output is correct
19 Correct 176 ms 11592 KB Output is correct
20 Correct 160 ms 11576 KB Output is correct
21 Correct 175 ms 11556 KB Output is correct
22 Correct 109 ms 10904 KB Output is correct
23 Correct 112 ms 10820 KB Output is correct
24 Correct 81 ms 10080 KB Output is correct
25 Correct 171 ms 11456 KB Output is correct
26 Correct 156 ms 11484 KB Output is correct
27 Correct 157 ms 11420 KB Output is correct
28 Correct 102 ms 10668 KB Output is correct
29 Correct 103 ms 10792 KB Output is correct
30 Correct 81 ms 9716 KB Output is correct
31 Correct 167 ms 12020 KB Output is correct
32 Correct 178 ms 11968 KB Output is correct
33 Correct 176 ms 11488 KB Output is correct
34 Correct 116 ms 11164 KB Output is correct
35 Correct 120 ms 11224 KB Output is correct
36 Correct 92 ms 10080 KB Output is correct
37 Correct 172 ms 11932 KB Output is correct
38 Correct 161 ms 11992 KB Output is correct
39 Correct 204 ms 11944 KB Output is correct
40 Correct 114 ms 10696 KB Output is correct
41 Correct 106 ms 10664 KB Output is correct
42 Correct 128 ms 9672 KB Output is correct
43 Correct 214 ms 13892 KB Output is correct
44 Correct 227 ms 14028 KB Output is correct
45 Correct 182 ms 13888 KB Output is correct
46 Correct 133 ms 12368 KB Output is correct
47 Correct 172 ms 12368 KB Output is correct
48 Correct 85 ms 9892 KB Output is correct
49 Correct 183 ms 13792 KB Output is correct
50 Correct 201 ms 13856 KB Output is correct
51 Correct 189 ms 13700 KB Output is correct
52 Correct 116 ms 12224 KB Output is correct
53 Correct 149 ms 11464 KB Output is correct