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Submission #126812

# Submission time Handle Problem Language Result Execution time Memory
126812 2019-07-08T13:15:20 Z mohammedehab2002 Examination (JOI19_examination) C++11
100 / 100
 2765 ms 163704 KB 
#include <iostream>
#include <algorithm>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <map>
using namespace std;
using namespace __gnu_pbds;
map<int,int> comp;
pair<int,int> arr[100005];
int x[100005],y[100005],z[100005],p[100005],ans[100005];
bool cmp(int a,int b)
{
	return x[a]>x[b];
}
tree<int,null_type,greater_equal<int>,rb_tree_tag,tree_order_statistics_node_update> s[800005];
void update(int node,int st,int en,int idx,int val)
{
	s[node].insert(val);
	if (st!=en)
	{
		int mid=(st+en)/2;
		if (st<=idx && idx<=mid)
		update(2*node,st,mid,idx,val);
		else
		update(2*node+1,mid+1,en,idx,val);
	}
}
int query(int node,int st,int en,int l,int r,int val)
{
	if (en<l || st>r || r<l)
	return 0;
	if (l<=st && en<=r)
	return s[node].order_of_key(val-1);
	int mid=(st+en)/2;
	return query(2*node,st,mid,l,r,val)+query(2*node+1,mid+1,en,l,r,val);
}
int main()
{
	int n,q;
	scanf("%d%d",&n,&q);
	for (int i=0;i<n;i++)
	{
		scanf("%d%d",&arr[i].first,&arr[i].second);
		comp[arr[i].second];
	}
	for (int i=0;i<q;i++)
	{
		scanf("%d%d%d",&x[i],&y[i],&z[i]);
		p[i]=i;
		comp[y[i]];
	}
	int cur=0;
	for (auto &l:comp)
	l.second=cur++;
	sort(p,p+q,cmp);
	sort(arr,arr+n);
	int idx=n-1;
	for (int i=0;i<q;i++)
	{
		while (idx>=0 && arr[idx].first>=x[p[i]])
		{
			update(1,0,cur-1,comp[arr[idx].second],arr[idx].first+arr[idx].second);
			idx--;
		}
		ans[p[i]]=query(1,0,cur-1,comp[y[p[i]]],cur-1,z[p[i]]);
	}
	for (int i=0;i<q;i++)
	printf("%d\n",ans[i]);
}

Compilation message

examination.cpp: In function 'int main()':
examination.cpp:40:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&q);
  ~~~~~^~~~~~~~~~~~~~
examination.cpp:43:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&arr[i].first,&arr[i].second);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:48:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d",&x[i],&y[i],&z[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 62968 KB Output is correct
2 Correct 88 ms 62904 KB Output is correct
3 Correct 89 ms 63096 KB Output is correct
4 Correct 103 ms 62968 KB Output is correct
5 Correct 88 ms 62968 KB Output is correct
6 Correct 88 ms 62968 KB Output is correct
7 Correct 122 ms 65292 KB Output is correct
8 Correct 111 ms 65348 KB Output is correct
9 Correct 111 ms 65244 KB Output is correct
10 Correct 96 ms 63744 KB Output is correct
11 Correct 107 ms 65272 KB Output is correct
12 Correct 94 ms 63740 KB Output is correct
13 Correct 111 ms 65228 KB Output is correct
14 Correct 125 ms 65400 KB Output is correct
15 Correct 111 ms 65276 KB Output is correct
16 Correct 104 ms 65260 KB Output is correct
17 Correct 93 ms 63356 KB Output is correct
18 Correct 92 ms 63480 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2330 ms 152552 KB Output is correct
2 Correct 2292 ms 152696 KB Output is correct
3 Correct 2313 ms 152576 KB Output is correct
4 Correct 483 ms 87672 KB Output is correct
5 Correct 1426 ms 152608 KB Output is correct
6 Correct 394 ms 87672 KB Output is correct
7 Correct 2496 ms 152696 KB Output is correct
8 Correct 2190 ms 149624 KB Output is correct
9 Correct 2166 ms 149484 KB Output is correct
10 Correct 1251 ms 152432 KB Output is correct
11 Correct 330 ms 75488 KB Output is correct
12 Correct 334 ms 79964 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2330 ms 152552 KB Output is correct
2 Correct 2292 ms 152696 KB Output is correct
3 Correct 2313 ms 152576 KB Output is correct
4 Correct 483 ms 87672 KB Output is correct
5 Correct 1426 ms 152608 KB Output is correct
6 Correct 394 ms 87672 KB Output is correct
7 Correct 2496 ms 152696 KB Output is correct
8 Correct 2190 ms 149624 KB Output is correct
9 Correct 2166 ms 149484 KB Output is correct
10 Correct 1251 ms 152432 KB Output is correct
11 Correct 330 ms 75488 KB Output is correct
12 Correct 334 ms 79964 KB Output is correct
13 Correct 2455 ms 152508 KB Output is correct
14 Correct 2378 ms 152572 KB Output is correct
15 Correct 2309 ms 152436 KB Output is correct
16 Correct 543 ms 87672 KB Output is correct
17 Correct 1430 ms 152568 KB Output is correct
18 Correct 396 ms 87744 KB Output is correct
19 Correct 2410 ms 152580 KB Output is correct
20 Correct 2628 ms 152584 KB Output is correct
21 Correct 2555 ms 151636 KB Output is correct
22 Correct 1259 ms 152312 KB Output is correct
23 Correct 318 ms 75504 KB Output is correct
24 Correct 374 ms 80120 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 62968 KB Output is correct
2 Correct 88 ms 62904 KB Output is correct
3 Correct 89 ms 63096 KB Output is correct
4 Correct 103 ms 62968 KB Output is correct
5 Correct 88 ms 62968 KB Output is correct
6 Correct 88 ms 62968 KB Output is correct
7 Correct 122 ms 65292 KB Output is correct
8 Correct 111 ms 65348 KB Output is correct
9 Correct 111 ms 65244 KB Output is correct
10 Correct 96 ms 63744 KB Output is correct
11 Correct 107 ms 65272 KB Output is correct
12 Correct 94 ms 63740 KB Output is correct
13 Correct 111 ms 65228 KB Output is correct
14 Correct 125 ms 65400 KB Output is correct
15 Correct 111 ms 65276 KB Output is correct
16 Correct 104 ms 65260 KB Output is correct
17 Correct 93 ms 63356 KB Output is correct
18 Correct 92 ms 63480 KB Output is correct
19 Correct 2330 ms 152552 KB Output is correct
20 Correct 2292 ms 152696 KB Output is correct
21 Correct 2313 ms 152576 KB Output is correct
22 Correct 483 ms 87672 KB Output is correct
23 Correct 1426 ms 152608 KB Output is correct
24 Correct 394 ms 87672 KB Output is correct
25 Correct 2496 ms 152696 KB Output is correct
26 Correct 2190 ms 149624 KB Output is correct
27 Correct 2166 ms 149484 KB Output is correct
28 Correct 1251 ms 152432 KB Output is correct
29 Correct 330 ms 75488 KB Output is correct
30 Correct 334 ms 79964 KB Output is correct
31 Correct 2455 ms 152508 KB Output is correct
32 Correct 2378 ms 152572 KB Output is correct
33 Correct 2309 ms 152436 KB Output is correct
34 Correct 543 ms 87672 KB Output is correct
35 Correct 1430 ms 152568 KB Output is correct
36 Correct 396 ms 87744 KB Output is correct
37 Correct 2410 ms 152580 KB Output is correct
38 Correct 2628 ms 152584 KB Output is correct
39 Correct 2555 ms 151636 KB Output is correct
40 Correct 1259 ms 152312 KB Output is correct
41 Correct 318 ms 75504 KB Output is correct
42 Correct 374 ms 80120 KB Output is correct
43 Correct 2745 ms 163520 KB Output is correct
44 Correct 2733 ms 163576 KB Output is correct
45 Correct 2578 ms 163480 KB Output is correct
46 Correct 544 ms 87672 KB Output is correct
47 Correct 1586 ms 163448 KB Output is correct
48 Correct 381 ms 87416 KB Output is correct
49 Correct 2765 ms 163556 KB Output is correct
50 Correct 2505 ms 163552 KB Output is correct
51 Correct 2622 ms 163704 KB Output is correct
52 Correct 1387 ms 163448 KB Output is correct
53 Correct 323 ms 75488 KB Output is correct