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Submission #998035

# Submission time Handle Problem Language Result Execution time Memory
998035 2024-06-13T08:37:16 Z anHiep Examination (JOI19_examination) C++14
100 / 100
 518 ms 47684 KB 
#include <bits/stdc++.h>
 
#define int long long
#define ll long long
#define pb push_back
 
using namespace std;
 
struct point{
    int a, b, c, id, val;
};
vector<point> student;
const int maxn = 1e6 + 10;
int ans[maxn];
 
bool cmp(point x, point y){
    if(x.a != y.a) return x.a > y.a;
    if(x.b != y.b) return x.b < y.b;
    return x.c < y.c;
}
 
void inv(point &a){
    a.a = -a.a;
    a.b = -a.b;
    a.c = -a.c;
}
 
int bit[maxn];
 
int getsum(int i){
    ll sum = 0;
    while(i > 0){
        sum+=bit[i];
        i-=(i & (-i));
    }
    return sum;
}
 
void update(int i, int v){
    while(i < maxn){
        bit[i]+=v;
        i+=(i & (-i));
    }
}
 
void dnc(int l, int r){
    if(l + 1 == r) return;
    int mid = (l + r)/2;
    dnc(l , mid); dnc(mid, r);
    vector<pair<int,int>> rec; vector<point> tmp;
    int a = l, b = mid, sum = 0;
 
    while(a < mid && b < r) {
        if(student[a].b > student[b].b){
            update(student[a].c, student[a].val);
            sum+=student[a].val;
            rec.push_back({student[a].c,student[a].val});
            tmp.push_back(student[a++]);
        }
        else{
            ans[student[b].id] += sum - getsum(student[b].c);
            tmp.push_back(student[b++]);
        }
    }
    while(a < mid) tmp.push_back(student[a++]);
    while(b < r) ans[student[b].id] += sum - getsum(student[b].c), tmp.push_back(student[b++]);
    for(int i = l ; i < r ; ++i) student[i] = tmp[i - l];
 
    for(auto x: rec) update(x.first, -x.second);
    vector<pair<int,int>> ().swap(rec);
    vector<point> ().swap(tmp);
}
 
 
signed main(){
    int n, q;
    cin >> n >> q;
    vector<int> compress;
    compress.pb(-1e18); compress.pb(1e18);
    for(int i = 0; i < n; i++){
        point tmp; cin >> tmp.a >> tmp.b;
        tmp.c = tmp.a + tmp.b; tmp.id = 0; tmp.val = 1;
        // inv(tmp);
        compress.pb(tmp.a);compress.pb(tmp.b);compress.pb(tmp.c);
        student.pb(tmp);
    }
 
    int cnt = 1;
    int _q = q;
    while(q--){
        point tmp;
        cin >> tmp.a >> tmp.b >> tmp.c;
        tmp.a--; tmp.b--; tmp.c--;
        tmp.val = 0 ;
        compress.pb(tmp.a); compress.pb(tmp.b); compress.pb(tmp.c);
        tmp.id = cnt;
        // inv(tmp);
        cnt++;
        student.pb(tmp);
    }
    sort(compress.begin(),compress.end());
    for(auto &x : student){
        x.a = lower_bound(compress.begin(),compress.end(),x.a) - compress.begin();
        x.b = lower_bound(compress.begin(),compress.end(),x.b) - compress.begin();
        x.c = lower_bound(compress.begin(),compress.end(),x.c) - compress.begin();
    }
    sort(student.begin(),student.end(), cmp);
 
    dnc(0, n + _q);
 
    for(int i = 1; i <= _q; i++){
        cout << ans[i] << "\n";
    }
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 12 ms 7632 KB Output is correct
8 Correct 12 ms 7504 KB Output is correct
9 Correct 12 ms 7496 KB Output is correct
10 Correct 11 ms 7500 KB Output is correct
11 Correct 9 ms 7504 KB Output is correct
12 Correct 7 ms 7468 KB Output is correct
13 Correct 13 ms 7632 KB Output is correct
14 Correct 13 ms 7500 KB Output is correct
15 Correct 17 ms 7572 KB Output is correct
16 Correct 10 ms 7504 KB Output is correct
17 Correct 10 ms 7504 KB Output is correct
18 Correct 5 ms 7368 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 480 ms 45152 KB Output is correct
2 Correct 482 ms 43860 KB Output is correct
3 Correct 461 ms 42396 KB Output is correct
4 Correct 403 ms 42404 KB Output is correct
5 Correct 300 ms 39764 KB Output is correct
6 Correct 236 ms 39016 KB Output is correct
7 Correct 425 ms 43992 KB Output is correct
8 Correct 452 ms 43656 KB Output is correct
9 Correct 462 ms 43372 KB Output is correct
10 Correct 250 ms 41576 KB Output is correct
11 Correct 338 ms 41884 KB Output is correct
12 Correct 200 ms 42276 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 480 ms 45152 KB Output is correct
2 Correct 482 ms 43860 KB Output is correct
3 Correct 461 ms 42396 KB Output is correct
4 Correct 403 ms 42404 KB Output is correct
5 Correct 300 ms 39764 KB Output is correct
6 Correct 236 ms 39016 KB Output is correct
7 Correct 425 ms 43992 KB Output is correct
8 Correct 452 ms 43656 KB Output is correct
9 Correct 462 ms 43372 KB Output is correct
10 Correct 250 ms 41576 KB Output is correct
11 Correct 338 ms 41884 KB Output is correct
12 Correct 200 ms 42276 KB Output is correct
13 Correct 476 ms 44480 KB Output is correct
14 Correct 492 ms 43788 KB Output is correct
15 Correct 483 ms 44004 KB Output is correct
16 Correct 387 ms 45424 KB Output is correct
17 Correct 313 ms 42916 KB Output is correct
18 Correct 196 ms 38244 KB Output is correct
19 Correct 481 ms 46588 KB Output is correct
20 Correct 474 ms 46448 KB Output is correct
21 Correct 461 ms 43480 KB Output is correct
22 Correct 267 ms 42892 KB Output is correct
23 Correct 334 ms 45868 KB Output is correct
24 Correct 183 ms 41808 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 12 ms 7632 KB Output is correct
8 Correct 12 ms 7504 KB Output is correct
9 Correct 12 ms 7496 KB Output is correct
10 Correct 11 ms 7500 KB Output is correct
11 Correct 9 ms 7504 KB Output is correct
12 Correct 7 ms 7468 KB Output is correct
13 Correct 13 ms 7632 KB Output is correct
14 Correct 13 ms 7500 KB Output is correct
15 Correct 17 ms 7572 KB Output is correct
16 Correct 10 ms 7504 KB Output is correct
17 Correct 10 ms 7504 KB Output is correct
18 Correct 5 ms 7368 KB Output is correct
19 Correct 480 ms 45152 KB Output is correct
20 Correct 482 ms 43860 KB Output is correct
21 Correct 461 ms 42396 KB Output is correct
22 Correct 403 ms 42404 KB Output is correct
23 Correct 300 ms 39764 KB Output is correct
24 Correct 236 ms 39016 KB Output is correct
25 Correct 425 ms 43992 KB Output is correct
26 Correct 452 ms 43656 KB Output is correct
27 Correct 462 ms 43372 KB Output is correct
28 Correct 250 ms 41576 KB Output is correct
29 Correct 338 ms 41884 KB Output is correct
30 Correct 200 ms 42276 KB Output is correct
31 Correct 476 ms 44480 KB Output is correct
32 Correct 492 ms 43788 KB Output is correct
33 Correct 483 ms 44004 KB Output is correct
34 Correct 387 ms 45424 KB Output is correct
35 Correct 313 ms 42916 KB Output is correct
36 Correct 196 ms 38244 KB Output is correct
37 Correct 481 ms 46588 KB Output is correct
38 Correct 474 ms 46448 KB Output is correct
39 Correct 461 ms 43480 KB Output is correct
40 Correct 267 ms 42892 KB Output is correct
41 Correct 334 ms 45868 KB Output is correct
42 Correct 183 ms 41808 KB Output is correct
43 Correct 504 ms 45360 KB Output is correct
44 Correct 489 ms 44860 KB Output is correct
45 Correct 518 ms 47684 KB Output is correct
46 Correct 429 ms 44108 KB Output is correct
47 Correct 332 ms 43964 KB Output is correct
48 Correct 208 ms 40672 KB Output is correct
49 Correct 509 ms 46676 KB Output is correct
50 Correct 489 ms 44904 KB Output is correct
51 Correct 481 ms 45804 KB Output is correct
52 Correct 318 ms 42932 KB Output is correct
53 Correct 347 ms 45044 KB Output is correct