oj.uz

답안 #839444

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
839444 2023-08-30T03:19:52 Z vjudge1 Examination (JOI19_examination) C++17
100 / 100
 902 ms 50332 KB 
#include<bits/stdc++.h>
using namespace std;
const int INF = 1e9;
#define fi first
#define se second
int n,q;
pair <int,int> a[100100];
struct qrr{
    int x,y,z,id;
    bool operator < (const qrr &p)const{
        return z > p.z;
    }
} qr[100100];
vector <int> nen_x,nen_y;
vector <int> BIT[200100];
vector <int> VAL[200100];
int ans[100100];
int f(vector <int> &b, int x){
    return lower_bound(b.begin(),b.end(),x) - b.begin();
}
void AddQuery(int x,int y){
    x = f(nen_x,x);
    for (;x > 0;x -= (x & (-x))){
        VAL[x].push_back(y);
    }
}
void AddUpdate(int x,int y){
    x = f(nen_x,x);
    for (;x < nen_x.size();x += (x & (-x))){
        VAL[x].push_back(y);
    }
}
void update(int x,int y){
    x = f(nen_x,x);
    for (;x < nen_x.size();x += x & -x){
        for (int j = f(VAL[x],y);j < VAL[x].size(); j += j & -j){
            BIT[x][j] ++;
        }
    }

}
int query(int x,int y){
    x = f(nen_x,x);
    int res = 0;
    for (;x > 0;x -= x & -x){
        for (int j = f(VAL[x],y);j > 0;j -= j & -j){
            res += BIT[x][j];
        }
    }
    return res;
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(nullptr);cout.tie(nullptr);
    cin>>n>>q;
    for (int i = 1;i <= n;i ++){
        cin>>a[i].fi>>a[i].se;
        nen_x.push_back(a[i].fi);
    }
    for (int i = 1;i <= q;i ++){
        cin>>qr[i].x>>qr[i].y>>qr[i].z;
        nen_x.push_back(qr[i].x-1);
        qr[i].id = i;
    }
    sort(qr+1,qr+1+q);
    nen_x.push_back(-1);
    nen_x.push_back(INF);
    sort(nen_x.begin(),nen_x.end());
    nen_x.resize(unique(nen_x.begin(),nen_x.end()) - nen_x.begin());
    for (int i = 1;i <= n;i ++){
        AddUpdate(a[i].fi,a[i].se);
    }
    for (int i = 1;i <= q;i ++){
        AddQuery(qr[i].x-1,INF);
        AddQuery(INF,qr[i].y-1);
        AddQuery(qr[i].x-1,qr[i].y-1);
    }
    for (int i = 1;i < nen_x.size();i++){
        VAL[i].push_back(-1);
        sort(VAL[i].begin(),VAL[i].end());
        VAL[i].resize(unique(VAL[i].begin(),VAL[i].end()) - VAL[i].begin());
        BIT[i].resize(VAL[i].size());
    }
    /*for (auto x:nen_x){
        cout<<x<<' ';
    }
    cout<<'\n';
    cout<<'\n';
    for (int i = 1;i < nen_x.size();i++){
        for (auto x:VAL[i]){
            cout<<x<<' ';
        }
        cout<<'\n';
    }
    cout<<'\n';
    for (int i = 1;i < nen_x.size();i++){
        for (auto x:BIT[i]){
            cout<<x<<' ';
        }
        cout<<'\n';
    }
    cout<<'\n';*/
    sort(a+1,a+1+n,[=](pair <int,int> a,pair <int,int> b){return a.first + a.second > b.first + b.second;});
    int cur = 1;
    for (int i = 1;i <= q;i ++){
        while (cur <= n && a[cur].fi + a[cur].se >= qr[i].z){
            //cout<<a[cur].fi<<' '<<a[cur].se<<' '<<qr[i].z<<'\n';
            update(a[cur].fi,a[cur].se);
            cur++;
        }
        ans[qr[i].id] = (cur - 1) - query(qr[i].x-1,INF) - query(INF,qr[i].y-1) + query(qr[i].x-1,qr[i].y-1);
    }
    for (int i = 1;i <= q;i++){
        cout<<ans[i]<<'\n';
    }
    cout<<'\n';
    return 0;
}

Compilation message

examination.cpp: In function 'void AddUpdate(int, int)':
examination.cpp:29:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for (;x < nen_x.size();x += (x & (-x))){
      |           ~~^~~~~~~~~~~~~~
examination.cpp: In function 'void update(int, int)':
examination.cpp:35:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for (;x < nen_x.size();x += x & -x){
      |           ~~^~~~~~~~~~~~~~
examination.cpp:36:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for (int j = f(VAL[x],y);j < VAL[x].size(); j += j & -j){
      |                                  ~~^~~~~~~~~~~~~~~
examination.cpp: In function 'int main()':
examination.cpp:77:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |     for (int i = 1;i < nen_x.size();i++){
      |                    ~~^~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 5 ms 9656 KB Output is correct
4 Correct 5 ms 9824 KB Output is correct
5 Correct 6 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 17 ms 10780 KB Output is correct
8 Correct 20 ms 10708 KB Output is correct
9 Correct 17 ms 10676 KB Output is correct
10 Correct 12 ms 10516 KB Output is correct
11 Correct 9 ms 10004 KB Output is correct
12 Correct 7 ms 9940 KB Output is correct
13 Correct 16 ms 10760 KB Output is correct
14 Correct 16 ms 10708 KB Output is correct
15 Correct 18 ms 10772 KB Output is correct
16 Correct 7 ms 9940 KB Output is correct
17 Correct 10 ms 10496 KB Output is correct
18 Correct 6 ms 9940 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 740 ms 41628 KB Output is correct
2 Correct 715 ms 41044 KB Output is correct
3 Correct 742 ms 41732 KB Output is correct
4 Correct 276 ms 32948 KB Output is correct
5 Correct 168 ms 18580 KB Output is correct
6 Correct 83 ms 17608 KB Output is correct
7 Correct 528 ms 38076 KB Output is correct
8 Correct 649 ms 38660 KB Output is correct
9 Correct 521 ms 36516 KB Output is correct
10 Correct 106 ms 15812 KB Output is correct
11 Correct 245 ms 33584 KB Output is correct
12 Correct 65 ms 16708 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 740 ms 41628 KB Output is correct
2 Correct 715 ms 41044 KB Output is correct
3 Correct 742 ms 41732 KB Output is correct
4 Correct 276 ms 32948 KB Output is correct
5 Correct 168 ms 18580 KB Output is correct
6 Correct 83 ms 17608 KB Output is correct
7 Correct 528 ms 38076 KB Output is correct
8 Correct 649 ms 38660 KB Output is correct
9 Correct 521 ms 36516 KB Output is correct
10 Correct 106 ms 15812 KB Output is correct
11 Correct 245 ms 33584 KB Output is correct
12 Correct 65 ms 16708 KB Output is correct
13 Correct 757 ms 40392 KB Output is correct
14 Correct 702 ms 40516 KB Output is correct
15 Correct 693 ms 39596 KB Output is correct
16 Correct 323 ms 33860 KB Output is correct
17 Correct 182 ms 18624 KB Output is correct
18 Correct 81 ms 17680 KB Output is correct
19 Correct 755 ms 40996 KB Output is correct
20 Correct 726 ms 39664 KB Output is correct
21 Correct 749 ms 40664 KB Output is correct
22 Correct 107 ms 15832 KB Output is correct
23 Correct 248 ms 33208 KB Output is correct
24 Correct 59 ms 16612 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 5 ms 9656 KB Output is correct
4 Correct 5 ms 9824 KB Output is correct
5 Correct 6 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 17 ms 10780 KB Output is correct
8 Correct 20 ms 10708 KB Output is correct
9 Correct 17 ms 10676 KB Output is correct
10 Correct 12 ms 10516 KB Output is correct
11 Correct 9 ms 10004 KB Output is correct
12 Correct 7 ms 9940 KB Output is correct
13 Correct 16 ms 10760 KB Output is correct
14 Correct 16 ms 10708 KB Output is correct
15 Correct 18 ms 10772 KB Output is correct
16 Correct 7 ms 9940 KB Output is correct
17 Correct 10 ms 10496 KB Output is correct
18 Correct 6 ms 9940 KB Output is correct
19 Correct 740 ms 41628 KB Output is correct
20 Correct 715 ms 41044 KB Output is correct
21 Correct 742 ms 41732 KB Output is correct
22 Correct 276 ms 32948 KB Output is correct
23 Correct 168 ms 18580 KB Output is correct
24 Correct 83 ms 17608 KB Output is correct
25 Correct 528 ms 38076 KB Output is correct
26 Correct 649 ms 38660 KB Output is correct
27 Correct 521 ms 36516 KB Output is correct
28 Correct 106 ms 15812 KB Output is correct
29 Correct 245 ms 33584 KB Output is correct
30 Correct 65 ms 16708 KB Output is correct
31 Correct 757 ms 40392 KB Output is correct
32 Correct 702 ms 40516 KB Output is correct
33 Correct 693 ms 39596 KB Output is correct
34 Correct 323 ms 33860 KB Output is correct
35 Correct 182 ms 18624 KB Output is correct
36 Correct 81 ms 17680 KB Output is correct
37 Correct 755 ms 40996 KB Output is correct
38 Correct 726 ms 39664 KB Output is correct
39 Correct 749 ms 40664 KB Output is correct
40 Correct 107 ms 15832 KB Output is correct
41 Correct 248 ms 33208 KB Output is correct
42 Correct 59 ms 16612 KB Output is correct
43 Correct 869 ms 49552 KB Output is correct
44 Correct 902 ms 50244 KB Output is correct
45 Correct 887 ms 50332 KB Output is correct
46 Correct 388 ms 41284 KB Output is correct
47 Correct 188 ms 19388 KB Output is correct
48 Correct 82 ms 17364 KB Output is correct
49 Correct 798 ms 50296 KB Output is correct
50 Correct 879 ms 49504 KB Output is correct
51 Correct 735 ms 47688 KB Output is correct
52 Correct 126 ms 16700 KB Output is correct
53 Correct 326 ms 40676 KB Output is correct