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Submission #682654

# Submission time Handle Problem Language Result Execution time Memory
682654 2023-01-16T17:22:54 Z benson1029 Examination (JOI19_examination) C++14
100 / 100
 734 ms 103772 KB 
#include<bits/stdc++.h>
using namespace std;
struct entry{
	int op;
	int a,b,c;
	int id;
};
bool cmpa(entry x, entry y) {
	if(x.a == y.a) return x.op < y.op;
	return x.a > y.a;
}
bool cmpb(entry x, entry y) {
	if(x.b == y.b) return x.op < y.op;
	return x.b > y.b;
}
struct node{
	int v;
	node *l, *r;
	node(): v(0), l(NULL), r(NULL) {}
};
entry a[200005];
entry b[200005];
int ans[200005];
pair<int,int> c[200005];
int n,q;
int w,x,y;
void upd(node *x, long long l, long long r, int pos) {
	if(l == r) {
		x->v++;
	} else {
		if(x->l == NULL) {
			x -> l = new node();
			x -> r = new node();
		}
		if(pos<=(l+r)/2) upd(x->l, l, (l+r)/2, pos);
		else upd(x->r, (l+r)/2+1, r, pos);
		x->v = x->l->v + x->r->v;
	}
}
int qry(node *x, long long l, long long r, int ll, int rr) {
	if(ll > r || rr < l) return 0;
	if(ll <= l && r <= rr) return x -> v;
	if(x -> l == NULL) return x -> v;
	return qry(x->l, l, (l+r)/2, ll, rr) + qry(x->r, (l+r)/2+1, r, ll, rr);
}
void cdq(int l, int r) {
	if(l >= r) return;
	int mid = (l+r)/2;
	int ptr = 0;
	for(int i=l; i<=r; i++) {
		if(i <= mid && a[i].op == 1) {
			b[ptr] = a[i];
			c[ptr] = make_pair(a[i].c,ptr);
			ptr++;
		} else if(i > mid && a[i].op == 2) {
			b[ptr] = a[i];
			c[ptr] = make_pair(a[i].c,ptr);
			ptr++;
		}
	}
	sort(c,c+ptr);
	int temp = 0;
	for(int i=0; i<ptr; i++) {
		if(i>0 && c[i].first != c[i-1].first) temp++;
		b[c[i].second].c = temp;
	}
	sort(b,b+ptr,cmpb);
	node *rt = new node();
	for(int i=0; i<ptr; i++) {
		if(b[i].op == 1) {
			upd(rt, 0, r-l+1, b[i].c);
		} else {
			ans[b[i].id] += qry(rt, 0, r-l+1, b[i].c, r-l+1);
		}
	}
	cdq(l, mid);
	cdq(mid+1, r);
}
int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	cin >> n >> q;
	for(int i=0; i<n; i++) {
		cin >> x >> y;
		a[i] = (entry){1,x,y,x+y,0};
	}
	for(int i=n; i<n+q; i++) {
		cin >> w >> x >> y;
		a[i] = (entry){2,w,x,y,i-n};
	}
	sort(a,a+n+q,cmpa);
	cdq(0,n+q-1);
	for(int i=0; i<q; i++) cout << ans[i] << endl;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 13 ms 2768 KB Output is correct
8 Correct 14 ms 2896 KB Output is correct
9 Correct 14 ms 2832 KB Output is correct
10 Correct 13 ms 2516 KB Output is correct
11 Correct 13 ms 2644 KB Output is correct
12 Correct 12 ms 1476 KB Output is correct
13 Correct 15 ms 2516 KB Output is correct
14 Correct 12 ms 2516 KB Output is correct
15 Correct 12 ms 2480 KB Output is correct
16 Correct 11 ms 2132 KB Output is correct
17 Correct 12 ms 2516 KB Output is correct
18 Correct 9 ms 1236 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 545 ms 83816 KB Output is correct
2 Correct 545 ms 83944 KB Output is correct
3 Correct 547 ms 83788 KB Output is correct
4 Correct 502 ms 70016 KB Output is correct
5 Correct 502 ms 73980 KB Output is correct
6 Correct 401 ms 36500 KB Output is correct
7 Correct 545 ms 81440 KB Output is correct
8 Correct 536 ms 83932 KB Output is correct
9 Correct 538 ms 81344 KB Output is correct
10 Correct 508 ms 72600 KB Output is correct
11 Correct 427 ms 67620 KB Output is correct
12 Correct 329 ms 30088 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 545 ms 83816 KB Output is correct
2 Correct 545 ms 83944 KB Output is correct
3 Correct 547 ms 83788 KB Output is correct
4 Correct 502 ms 70016 KB Output is correct
5 Correct 502 ms 73980 KB Output is correct
6 Correct 401 ms 36500 KB Output is correct
7 Correct 545 ms 81440 KB Output is correct
8 Correct 536 ms 83932 KB Output is correct
9 Correct 538 ms 81344 KB Output is correct
10 Correct 508 ms 72600 KB Output is correct
11 Correct 427 ms 67620 KB Output is correct
12 Correct 329 ms 30088 KB Output is correct
13 Correct 646 ms 101092 KB Output is correct
14 Correct 589 ms 98828 KB Output is correct
15 Correct 553 ms 83736 KB Output is correct
16 Correct 543 ms 70544 KB Output is correct
17 Correct 536 ms 84924 KB Output is correct
18 Correct 469 ms 36568 KB Output is correct
19 Correct 613 ms 100868 KB Output is correct
20 Correct 610 ms 102776 KB Output is correct
21 Correct 628 ms 98788 KB Output is correct
22 Correct 467 ms 72636 KB Output is correct
23 Correct 431 ms 67488 KB Output is correct
24 Correct 320 ms 29968 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 13 ms 2768 KB Output is correct
8 Correct 14 ms 2896 KB Output is correct
9 Correct 14 ms 2832 KB Output is correct
10 Correct 13 ms 2516 KB Output is correct
11 Correct 13 ms 2644 KB Output is correct
12 Correct 12 ms 1476 KB Output is correct
13 Correct 15 ms 2516 KB Output is correct
14 Correct 12 ms 2516 KB Output is correct
15 Correct 12 ms 2480 KB Output is correct
16 Correct 11 ms 2132 KB Output is correct
17 Correct 12 ms 2516 KB Output is correct
18 Correct 9 ms 1236 KB Output is correct
19 Correct 545 ms 83816 KB Output is correct
20 Correct 545 ms 83944 KB Output is correct
21 Correct 547 ms 83788 KB Output is correct
22 Correct 502 ms 70016 KB Output is correct
23 Correct 502 ms 73980 KB Output is correct
24 Correct 401 ms 36500 KB Output is correct
25 Correct 545 ms 81440 KB Output is correct
26 Correct 536 ms 83932 KB Output is correct
27 Correct 538 ms 81344 KB Output is correct
28 Correct 508 ms 72600 KB Output is correct
29 Correct 427 ms 67620 KB Output is correct
30 Correct 329 ms 30088 KB Output is correct
31 Correct 646 ms 101092 KB Output is correct
32 Correct 589 ms 98828 KB Output is correct
33 Correct 553 ms 83736 KB Output is correct
34 Correct 543 ms 70544 KB Output is correct
35 Correct 536 ms 84924 KB Output is correct
36 Correct 469 ms 36568 KB Output is correct
37 Correct 613 ms 100868 KB Output is correct
38 Correct 610 ms 102776 KB Output is correct
39 Correct 628 ms 98788 KB Output is correct
40 Correct 467 ms 72636 KB Output is correct
41 Correct 431 ms 67488 KB Output is correct
42 Correct 320 ms 29968 KB Output is correct
43 Correct 703 ms 103444 KB Output is correct
44 Correct 703 ms 103772 KB Output is correct
45 Correct 682 ms 101000 KB Output is correct
46 Correct 599 ms 87716 KB Output is correct
47 Correct 659 ms 88928 KB Output is correct
48 Correct 526 ms 36396 KB Output is correct
49 Correct 730 ms 97540 KB Output is correct
50 Correct 734 ms 103680 KB Output is correct
51 Correct 730 ms 97572 KB Output is correct
52 Correct 599 ms 79536 KB Output is correct
53 Correct 460 ms 85260 KB Output is correct