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Submission #378167

# Submission time Handle Problem Language Result Execution time Memory
378167 2021-03-16T05:56:56 Z emanIaicepsa Examination (JOI19_examination) C++14
100 / 100
 634 ms 12628 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
#define pb emplace_back
#define all(n) (n).begin(),(n).end()
#define mem(n,x) memset(n,x,sizeof(n))
#define IOS ios::sync_with_stdio(0),cin.tie(0)
#define pii pair<ll,ll>
#define vi vector<ll>
#define dbg(...) cerr<<#__VA_ARGS__<<" = ";_do(__VA_ARGS__);
template<typename A> void _do(A x){ cerr<<x<<"\n"; }
template<typename A, typename ...B> void _do(A x, B ...y){ cerr<<x<<", "; _do(y...);}

int N, Q, ans[200005];

struct point{
	int x, y, z, id;
} arr[200005];

bool xcmp(point &a, point &b){
	if(a.x != b.x) return a.x > b.x;
	if(a.y != b.y) return a.y > b.y;
	if(a.z != b.z) return a.z > b.z;
	return a.id < b.id;
}

bool ycmp(point &a, point &b){
	if(a.y != b.y) return a.y > b.y;
	if(a.z != b.z) return a.z > b.z;
	return a.id < b.id;
}

int bit[200005];

void add(int x, int v){
	for(;x<=N+Q;x+=x&-x) bit[x] += v;
}

int query(int x){
	int ans = 0;
	for(;x;x-=x&-x) ans += bit[x];
	return ans;
}

void solve(int l, int r){
	if(l == r) return;
	int m = (l+r) / 2;
	solve(l, m);
	solve(m+1, r);
	sort(arr+l, arr+m+1, ycmp);
	sort(arr+m+1, arr+r+1, ycmp);
	
	int idx = l;
	for(int i=m+1;i<=r;i++){
		while(idx <= m && arr[idx].y >= arr[i].y){
			if(!arr[idx].id) add(arr[idx].z, 1);
			idx++;
		}
		if(arr[i].id) ans[arr[i].id] += query(N+Q) - query(arr[i].z - 1);
	}
	for(int i=l;i<idx;i++) if(!arr[i].id) add(arr[i].z, -1);
}

signed main(){
	IOS;
	cin >> N >> Q;
	for(int i=1;i<=N;i++) cin >> arr[i].x >> arr[i].y, arr[i].z = arr[i].x + arr[i].y, arr[i].id=0;
	for(int i=1;i<=Q;i++) cin >> arr[i+N].x >> arr[i+N].y >> arr[i+N].z, arr[i+N].id = i;
	
	vector<int> ax, ay, az;
	for(int i=1;i<=N+Q;i++) ax.pb(arr[i].x), ay.pb(arr[i].y), az.pb(arr[i].z);
	sort(all(ax)), sort(all(ay)), sort(all(az));
	ax.resize(unique(all(ax))-ax.begin());
	ay.resize(unique(all(ay))-ay.begin());
	az.resize(unique(all(az))-az.begin());
	for(int i=1;i<=N+Q;i++){
		arr[i].x = lower_bound(all(ax), arr[i].x) - ax.begin() + 1;
		arr[i].y = lower_bound(all(ay), arr[i].y) - ay.begin() + 1;
		arr[i].z = lower_bound(all(az), arr[i].z) - az.begin() + 1;
	}
	sort(arr+1, arr+1+N+Q, xcmp);


	solve(1, 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 364 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 12 ms 748 KB Output is correct
8 Correct 12 ms 748 KB Output is correct
9 Correct 12 ms 748 KB Output is correct
10 Correct 11 ms 748 KB Output is correct
11 Correct 10 ms 748 KB Output is correct
12 Correct 10 ms 620 KB Output is correct
13 Correct 11 ms 748 KB Output is correct
14 Correct 11 ms 768 KB Output is correct
15 Correct 11 ms 748 KB Output is correct
16 Correct 8 ms 748 KB Output is correct
17 Correct 10 ms 748 KB Output is correct
18 Correct 6 ms 620 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 602 ms 9704 KB Output is correct
2 Correct 553 ms 9684 KB Output is correct
3 Correct 575 ms 9684 KB Output is correct
4 Correct 482 ms 9104 KB Output is correct
5 Correct 423 ms 8916 KB Output is correct
6 Correct 314 ms 8020 KB Output is correct
7 Correct 534 ms 9812 KB Output is correct
8 Correct 545 ms 10068 KB Output is correct
9 Correct 529 ms 9684 KB Output is correct
10 Correct 401 ms 8832 KB Output is correct
11 Correct 493 ms 8780 KB Output is correct
12 Correct 266 ms 7636 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 602 ms 9704 KB Output is correct
2 Correct 553 ms 9684 KB Output is correct
3 Correct 575 ms 9684 KB Output is correct
4 Correct 482 ms 9104 KB Output is correct
5 Correct 423 ms 8916 KB Output is correct
6 Correct 314 ms 8020 KB Output is correct
7 Correct 534 ms 9812 KB Output is correct
8 Correct 545 ms 10068 KB Output is correct
9 Correct 529 ms 9684 KB Output is correct
10 Correct 401 ms 8832 KB Output is correct
11 Correct 493 ms 8780 KB Output is correct
12 Correct 266 ms 7636 KB Output is correct
13 Correct 607 ms 10452 KB Output is correct
14 Correct 597 ms 10324 KB Output is correct
15 Correct 554 ms 9940 KB Output is correct
16 Correct 559 ms 9428 KB Output is correct
17 Correct 454 ms 9556 KB Output is correct
18 Correct 312 ms 8020 KB Output is correct
19 Correct 604 ms 10460 KB Output is correct
20 Correct 610 ms 10296 KB Output is correct
21 Correct 578 ms 10452 KB Output is correct
22 Correct 369 ms 9048 KB Output is correct
23 Correct 488 ms 8916 KB Output is correct
24 Correct 278 ms 7636 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 12 ms 748 KB Output is correct
8 Correct 12 ms 748 KB Output is correct
9 Correct 12 ms 748 KB Output is correct
10 Correct 11 ms 748 KB Output is correct
11 Correct 10 ms 748 KB Output is correct
12 Correct 10 ms 620 KB Output is correct
13 Correct 11 ms 748 KB Output is correct
14 Correct 11 ms 768 KB Output is correct
15 Correct 11 ms 748 KB Output is correct
16 Correct 8 ms 748 KB Output is correct
17 Correct 10 ms 748 KB Output is correct
18 Correct 6 ms 620 KB Output is correct
19 Correct 602 ms 9704 KB Output is correct
20 Correct 553 ms 9684 KB Output is correct
21 Correct 575 ms 9684 KB Output is correct
22 Correct 482 ms 9104 KB Output is correct
23 Correct 423 ms 8916 KB Output is correct
24 Correct 314 ms 8020 KB Output is correct
25 Correct 534 ms 9812 KB Output is correct
26 Correct 545 ms 10068 KB Output is correct
27 Correct 529 ms 9684 KB Output is correct
28 Correct 401 ms 8832 KB Output is correct
29 Correct 493 ms 8780 KB Output is correct
30 Correct 266 ms 7636 KB Output is correct
31 Correct 607 ms 10452 KB Output is correct
32 Correct 597 ms 10324 KB Output is correct
33 Correct 554 ms 9940 KB Output is correct
34 Correct 559 ms 9428 KB Output is correct
35 Correct 454 ms 9556 KB Output is correct
36 Correct 312 ms 8020 KB Output is correct
37 Correct 604 ms 10460 KB Output is correct
38 Correct 610 ms 10296 KB Output is correct
39 Correct 578 ms 10452 KB Output is correct
40 Correct 369 ms 9048 KB Output is correct
41 Correct 488 ms 8916 KB Output is correct
42 Correct 278 ms 7636 KB Output is correct
43 Correct 623 ms 12628 KB Output is correct
44 Correct 618 ms 12540 KB Output is correct
45 Correct 609 ms 12628 KB Output is correct
46 Correct 556 ms 11092 KB Output is correct
47 Correct 464 ms 10964 KB Output is correct
48 Correct 336 ms 7892 KB Output is correct
49 Correct 634 ms 12600 KB Output is correct
50 Correct 602 ms 12484 KB Output is correct
51 Correct 600 ms 12372 KB Output is correct
52 Correct 392 ms 10964 KB Output is correct
53 Correct 489 ms 9684 KB Output is correct