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Submission #1033805

# Submission time Handle Problem Language Result Execution time Memory
1033805 2024-07-25T06:38:06 Z vjudge1 Examination (JOI19_examination) C++14
100 / 100
 971 ms 49540 KB 
#include <bits/stdc++.h>
using namespace std;
#define name "aaaaaa"
using ll = long long;

void file(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	if(fopen(name".inp", "r")) {
		freopen(name".inp", "r", stdin);
		freopen(name".out", "w", stdout);
	}
}

struct node {
  int x, y, z, i, val;
};

const int maxn = 1e6 + 5;

struct BIT {
	int b[maxn], n;

	void build(int _n) {
		n = _n;
		fill(b, b + n + 1, 0);
	}
	int lowbit(int x){
		return x & (-x);
	}
	void update(int x, int v){
		for(int i = x; i <= n; i += lowbit(i)){
			b[i] += v;
		}
	}
	int query(int x) {
		int ans = 0;
		for(int i = x; i > 0; i -= lowbit(i)){
			ans += b[i];
		}
		return ans;
	}
} bit;

vector<node> v;
int n, q, ans[maxn];

void cdq(int l, int r) {
	if(l == r) return;
	int m = (l + r) / 2;
	cdq(l, m); cdq(m + 1, r);

	int a = l, b = m + 1, sum = 0;
	vector<pair<int, int>> record;
	vector<node> tmp;
	while(a <= m && b <= r){
		if(v[a].y >= v[b].y){
			int add = v[a].val;
			bit.update(v[a].z, add), sum += add, record.push_back({v[a].z, add}), tmp.push_back(v[a]);
			a++;
		}else{
			ans[v[b].i] += sum - bit.query(v[b].z - 1), tmp.push_back(v[b]);
			b++;
		}
	}
	while(a <= m){
		tmp.push_back(v[a]);
		a++;
	}
	while(b <= r){
		ans[v[b].i] += sum - bit.query(v[b].z - 1), tmp.push_back(v[b]);
		b++;
	}
	for(int i = l; i <= r; i++){
		v[i] = tmp[i - l];
	}
	for(auto i : record) bit.update(i.first, -i.second);
}	

bool comp(node a, node b){
	if(a.x == b.x){
		return a.val > b.val;
	}
	return (a.x == b.x ? (a.y == b.y ? a.z < b.z : a.y < b.y) : a.x > b.x);
}

map<int, int> mp;

void solve() {
	cin >> n >> q;
	for(int i = 0; i < n; i++){
		int a, b, c;
		cin >> a >> b;
		c = a + b;
		mp[a] = true;
		mp[b] = true;
		mp[c] = true;
		v.push_back({a, b, c, i, 1});
	}
	for(int i = n; i < n + q; i++){
		int x, y, z;
		cin >> x >> y >> z;
		mp[x] = true;
		mp[y] = true;
		mp[z] = true;
		v.push_back({x, y, z, i, 0});
	}
	int id = 1;
	for(auto i : mp){
		mp[i.first] = id;
		id++;
	}
	for(int i = 0; i < v.size(); i++){
		v[i].x = mp[v[i].x];
		v[i].y = mp[v[i].y];
		v[i].z = mp[v[i].z];
	}
	bit.build(id);
	sort(v.begin(), v.end(), comp);
	cdq(0, n + q - 1);
	for(int i = n; i < n + q; i++) cout << ans[i] << '\n';
}

int main() {
	file();
	solve();
}

Compilation message

examination.cpp: In function 'void solve()':
examination.cpp:112:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<node>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  112 |  for(int i = 0; i < v.size(); i++){
      |                 ~~^~~~~~~~~~
examination.cpp: In function 'void file()':
examination.cpp:9:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |   freopen(name".inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:10:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |   freopen(name".out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 468 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 12 ms 1916 KB Output is correct
8 Correct 11 ms 1860 KB Output is correct
9 Correct 12 ms 1856 KB Output is correct
10 Correct 9 ms 1848 KB Output is correct
11 Correct 9 ms 1592 KB Output is correct
12 Correct 4 ms 800 KB Output is correct
13 Correct 10 ms 1592 KB Output is correct
14 Correct 10 ms 1664 KB Output is correct
15 Correct 10 ms 1644 KB Output is correct
16 Correct 6 ms 1116 KB Output is correct
17 Correct 8 ms 1320 KB Output is correct
18 Correct 3 ms 796 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 23424 KB Output is correct
2 Correct 436 ms 23596 KB Output is correct
3 Correct 432 ms 23424 KB Output is correct
4 Correct 312 ms 20796 KB Output is correct
5 Correct 305 ms 20688 KB Output is correct
6 Correct 128 ms 15124 KB Output is correct
7 Correct 427 ms 23236 KB Output is correct
8 Correct 437 ms 23284 KB Output is correct
9 Correct 378 ms 23168 KB Output is correct
10 Correct 275 ms 20308 KB Output is correct
11 Correct 289 ms 20624 KB Output is correct
12 Correct 116 ms 15416 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 23424 KB Output is correct
2 Correct 436 ms 23596 KB Output is correct
3 Correct 432 ms 23424 KB Output is correct
4 Correct 312 ms 20796 KB Output is correct
5 Correct 305 ms 20688 KB Output is correct
6 Correct 128 ms 15124 KB Output is correct
7 Correct 427 ms 23236 KB Output is correct
8 Correct 437 ms 23284 KB Output is correct
9 Correct 378 ms 23168 KB Output is correct
10 Correct 275 ms 20308 KB Output is correct
11 Correct 289 ms 20624 KB Output is correct
12 Correct 116 ms 15416 KB Output is correct
13 Correct 485 ms 25216 KB Output is correct
14 Correct 439 ms 23940 KB Output is correct
15 Correct 444 ms 23428 KB Output is correct
16 Correct 340 ms 21164 KB Output is correct
17 Correct 361 ms 21268 KB Output is correct
18 Correct 151 ms 15128 KB Output is correct
19 Correct 505 ms 25216 KB Output is correct
20 Correct 489 ms 24444 KB Output is correct
21 Correct 461 ms 25212 KB Output is correct
22 Correct 290 ms 20356 KB Output is correct
23 Correct 276 ms 20536 KB Output is correct
24 Correct 103 ms 15236 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 468 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 12 ms 1916 KB Output is correct
8 Correct 11 ms 1860 KB Output is correct
9 Correct 12 ms 1856 KB Output is correct
10 Correct 9 ms 1848 KB Output is correct
11 Correct 9 ms 1592 KB Output is correct
12 Correct 4 ms 800 KB Output is correct
13 Correct 10 ms 1592 KB Output is correct
14 Correct 10 ms 1664 KB Output is correct
15 Correct 10 ms 1644 KB Output is correct
16 Correct 6 ms 1116 KB Output is correct
17 Correct 8 ms 1320 KB Output is correct
18 Correct 3 ms 796 KB Output is correct
19 Correct 426 ms 23424 KB Output is correct
20 Correct 436 ms 23596 KB Output is correct
21 Correct 432 ms 23424 KB Output is correct
22 Correct 312 ms 20796 KB Output is correct
23 Correct 305 ms 20688 KB Output is correct
24 Correct 128 ms 15124 KB Output is correct
25 Correct 427 ms 23236 KB Output is correct
26 Correct 437 ms 23284 KB Output is correct
27 Correct 378 ms 23168 KB Output is correct
28 Correct 275 ms 20308 KB Output is correct
29 Correct 289 ms 20624 KB Output is correct
30 Correct 116 ms 15416 KB Output is correct
31 Correct 485 ms 25216 KB Output is correct
32 Correct 439 ms 23940 KB Output is correct
33 Correct 444 ms 23428 KB Output is correct
34 Correct 340 ms 21164 KB Output is correct
35 Correct 361 ms 21268 KB Output is correct
36 Correct 151 ms 15128 KB Output is correct
37 Correct 505 ms 25216 KB Output is correct
38 Correct 489 ms 24444 KB Output is correct
39 Correct 461 ms 25212 KB Output is correct
40 Correct 290 ms 20356 KB Output is correct
41 Correct 276 ms 20536 KB Output is correct
42 Correct 103 ms 15236 KB Output is correct
43 Correct 777 ms 49468 KB Output is correct
44 Correct 765 ms 49388 KB Output is correct
45 Correct 789 ms 49540 KB Output is correct
46 Correct 536 ms 37436 KB Output is correct
47 Correct 509 ms 37224 KB Output is correct
48 Correct 148 ms 15132 KB Output is correct
49 Correct 919 ms 49288 KB Output is correct
50 Correct 971 ms 49404 KB Output is correct
51 Correct 960 ms 49136 KB Output is correct
52 Correct 506 ms 32576 KB Output is correct
53 Correct 378 ms 26976 KB Output is correct