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Submission #383973

# Submission time Handle Problem Language Result Execution time Memory
383973 2021-03-31T06:03:45 Z nikatamliani Examination (JOI19_examination) C++14
100 / 100
 690 ms 77168 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int N = 2e5+10;
template <typename T>
struct implicit_segment_tree {
	T neutral;
	int size, max_size;
	function<T(T, T)> join;
	vector<T> values;
	vector<int> left, right;
	implicit_segment_tree(int _max_size, T _neutral, function<T(T, T)> f, int reserve_size = 1) {
		join = f;
		neutral = _neutral;
		size = 0;
		max_size = _max_size;
		values.reserve(reserve_size);
		left.reserve(reserve_size);
		right.reserve(reserve_size);
		insert_node(neutral);
	}
	
	T get_val(int pos) {
		if(pos < 0 || pos >= (int)values.size()) return neutral;
		return values[pos];
	}
	
	void insert_node(T val) {
		values.push_back(val);
		left.push_back(-1);
		right.push_back(-1);
		++size;
	}
	
	void point_update(int id, T val) {
		point_update(0, max_size, id, val, 0); 
	}
	
	void point_update(int l, int r, int x, T val, int p) {
		int middle = l + r >> 1;
		if(l == r) {
			values[p] = val;
			return;
		}
		if(x <= middle) {
			if(left[p] == -1) {
				left[p] = size;
				insert_node(neutral);
			}
			point_update(l, middle, x, val, left[p]);
		} else {
			if(right[p] == -1) {
				right[p] = size;
				insert_node(neutral);
			}
			point_update(middle+1, r, x, val, right[p]);
		}
		values[p] = join(get_val(left[p]), get_val(right[p]));
	}
	
	T get(int id) {
		return query(id, id);
	}
	
	T query(int L, int R) {
		if(L > R) return neutral;
		return query(0, max_size, L, R, 0); 
	}
	
	T query(int l, int r, int L, int R, int p) {
		if(L > r || l > R || p == -1) return neutral;
		if(L <= l && R >= r) return get_val(p);
		int middle = l + r >> 1;
		T lft = query(l, middle, L, R, left[p]);
		T rgh = query(middle+1, r, L, R, right[p]);
		return join(lft, rgh);
	}
	
	void print_tree(int n) {
		for(int i = 1; i <= n; ++i) {
			cout << get(i) << " \n"[i == n];
		}
	}
};
struct point {
	int x, y, sum, id;
	bool operator < (const point &other) {
		return sum < other.sum;
	}
};
main() {
	ios::sync_with_stdio(0); cin.tie(0);
	int n, m;
	cin >> n >> m; 
	vector<point> a(n), b(m);
	for(int i = 0; i < n; ++i) {
		cin >> a[i].x >> a[i].y;
		a[i].sum = a[i].x + a[i].y;
	}
	for(int i = 0; i < m; ++i) {
		cin >> b[i].x >> b[i].y >> b[i].sum;
		b[i].sum = max(b[i].sum, b[i].x + b[i].y);
		b[i].id = i;
	}
	sort(a.begin(), a.end());
	sort(b.begin(), b.end());
	vector<int> ans(m);
	auto sum = [](int x, int y) -> int {
		return x + y;
	};
	implicit_segment_tree<int> tx(INT_MAX, 0, sum, 5e6);
	implicit_segment_tree<int> ty(INT_MAX, 0, sum, 5e6); 
	for(int i = m - 1, j = n - 1; i >= 0; --i) {
		while(j >= 0 && a[j].sum >= b[i].sum) {
			int upd_x = tx.get(a[j].x) + 1;
			int upd_y = ty.get(a[j].y) + 1;
			tx.point_update(a[j].x, upd_x);
			ty.point_update(a[j].y, upd_y);
			--j;
		}
		ans[b[i].id] = n - j - 1 - tx.query(0, b[i].x - 1) - ty.query(0, b[i].y - 1);
	}
	for(int x : ans) {
		cout << x << ' ';  
	}
}

Compilation message

examination.cpp:91:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   91 | main() {
      |      ^
examination.cpp: In instantiation of 'void implicit_segment_tree<T>::point_update(long long int, long long int, long long int, T, long long int) [with T = long long int]':
examination.cpp:36:3:   required from 'void implicit_segment_tree<T>::point_update(long long int, T) [with T = long long int]'
examination.cpp:117:33:   required from here
examination.cpp:40:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   40 |   int middle = l + r >> 1;
      |                ~~^~~
examination.cpp: In instantiation of 'T implicit_segment_tree<T>::query(long long int, long long int, long long int, long long int, long long int) [with T = long long int]':
examination.cpp:67:36:   required from 'T implicit_segment_tree<T>::query(long long int, long long int) [with T = long long int]'
examination.cpp:121:52:   required from here
examination.cpp:73:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   73 |   int middle = l + r >> 1;
      |                ~~^~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 364 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 16 ms 3436 KB Output is correct
8 Correct 13 ms 3436 KB Output is correct
9 Correct 13 ms 3436 KB Output is correct
10 Correct 11 ms 2028 KB Output is correct
11 Correct 11 ms 2028 KB Output is correct
12 Correct 9 ms 620 KB Output is correct
13 Correct 13 ms 3436 KB Output is correct
14 Correct 13 ms 3436 KB Output is correct
15 Correct 16 ms 3436 KB Output is correct
16 Correct 11 ms 2028 KB Output is correct
17 Correct 13 ms 1956 KB Output is correct
18 Correct 7 ms 620 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 519 ms 15464 KB Output is correct
2 Correct 520 ms 15468 KB Output is correct
3 Correct 556 ms 15340 KB Output is correct
4 Correct 336 ms 12268 KB Output is correct
5 Correct 396 ms 12140 KB Output is correct
6 Correct 275 ms 8812 KB Output is correct
7 Correct 515 ms 16364 KB Output is correct
8 Correct 513 ms 16280 KB Output is correct
9 Correct 452 ms 16308 KB Output is correct
10 Correct 341 ms 12532 KB Output is correct
11 Correct 337 ms 12396 KB Output is correct
12 Correct 203 ms 8556 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 519 ms 15464 KB Output is correct
2 Correct 520 ms 15468 KB Output is correct
3 Correct 556 ms 15340 KB Output is correct
4 Correct 336 ms 12268 KB Output is correct
5 Correct 396 ms 12140 KB Output is correct
6 Correct 275 ms 8812 KB Output is correct
7 Correct 515 ms 16364 KB Output is correct
8 Correct 513 ms 16280 KB Output is correct
9 Correct 452 ms 16308 KB Output is correct
10 Correct 341 ms 12532 KB Output is correct
11 Correct 337 ms 12396 KB Output is correct
12 Correct 203 ms 8556 KB Output is correct
13 Correct 509 ms 16416 KB Output is correct
14 Correct 507 ms 16364 KB Output is correct
15 Correct 520 ms 16364 KB Output is correct
16 Correct 318 ms 12652 KB Output is correct
17 Correct 339 ms 12524 KB Output is correct
18 Correct 276 ms 8940 KB Output is correct
19 Correct 475 ms 16492 KB Output is correct
20 Correct 482 ms 16492 KB Output is correct
21 Correct 493 ms 16492 KB Output is correct
22 Correct 311 ms 12420 KB Output is correct
23 Correct 320 ms 12436 KB Output is correct
24 Correct 200 ms 8556 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 2 ms 364 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 16 ms 3436 KB Output is correct
8 Correct 13 ms 3436 KB Output is correct
9 Correct 13 ms 3436 KB Output is correct
10 Correct 11 ms 2028 KB Output is correct
11 Correct 11 ms 2028 KB Output is correct
12 Correct 9 ms 620 KB Output is correct
13 Correct 13 ms 3436 KB Output is correct
14 Correct 13 ms 3436 KB Output is correct
15 Correct 16 ms 3436 KB Output is correct
16 Correct 11 ms 2028 KB Output is correct
17 Correct 13 ms 1956 KB Output is correct
18 Correct 7 ms 620 KB Output is correct
19 Correct 519 ms 15464 KB Output is correct
20 Correct 520 ms 15468 KB Output is correct
21 Correct 556 ms 15340 KB Output is correct
22 Correct 336 ms 12268 KB Output is correct
23 Correct 396 ms 12140 KB Output is correct
24 Correct 275 ms 8812 KB Output is correct
25 Correct 515 ms 16364 KB Output is correct
26 Correct 513 ms 16280 KB Output is correct
27 Correct 452 ms 16308 KB Output is correct
28 Correct 341 ms 12532 KB Output is correct
29 Correct 337 ms 12396 KB Output is correct
30 Correct 203 ms 8556 KB Output is correct
31 Correct 509 ms 16416 KB Output is correct
32 Correct 507 ms 16364 KB Output is correct
33 Correct 520 ms 16364 KB Output is correct
34 Correct 318 ms 12652 KB Output is correct
35 Correct 339 ms 12524 KB Output is correct
36 Correct 276 ms 8940 KB Output is correct
37 Correct 475 ms 16492 KB Output is correct
38 Correct 482 ms 16492 KB Output is correct
39 Correct 493 ms 16492 KB Output is correct
40 Correct 311 ms 12420 KB Output is correct
41 Correct 320 ms 12436 KB Output is correct
42 Correct 200 ms 8556 KB Output is correct
43 Correct 653 ms 77168 KB Output is correct
44 Correct 637 ms 76796 KB Output is correct
45 Correct 690 ms 75568 KB Output is correct
46 Correct 329 ms 41708 KB Output is correct
47 Correct 331 ms 41708 KB Output is correct
48 Correct 232 ms 7788 KB Output is correct
49 Correct 668 ms 75628 KB Output is correct
50 Correct 614 ms 75628 KB Output is correct
51 Correct 645 ms 75628 KB Output is correct
52 Correct 309 ms 41580 KB Output is correct
53 Correct 316 ms 41708 KB Output is correct