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Submission #998240

# Submission time Handle Problem Language Result Execution time Memory
998240 2024-06-13T12:24:36 Z vjudge1 Examination (JOI19_examination) C++14
100 / 100
 867 ms 49024 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 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 11 ms 3676 KB Output is correct
8 Correct 13 ms 3720 KB Output is correct
9 Correct 12 ms 3648 KB Output is correct
10 Correct 9 ms 3388 KB Output is correct
11 Correct 10 ms 3432 KB Output is correct
12 Correct 5 ms 2844 KB Output is correct
13 Correct 10 ms 3532 KB Output is correct
14 Correct 10 ms 3508 KB Output is correct
15 Correct 10 ms 3648 KB Output is correct
16 Correct 6 ms 3132 KB Output is correct
17 Correct 8 ms 3232 KB Output is correct
18 Correct 4 ms 2844 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 449 ms 27092 KB Output is correct
2 Correct 445 ms 26764 KB Output is correct
3 Correct 449 ms 27016 KB Output is correct
4 Correct 326 ms 25008 KB Output is correct
5 Correct 307 ms 24964 KB Output is correct
6 Correct 129 ms 17944 KB Output is correct
7 Correct 432 ms 26828 KB Output is correct
8 Correct 461 ms 26920 KB Output is correct
9 Correct 380 ms 27448 KB Output is correct
10 Correct 274 ms 22664 KB Output is correct
11 Correct 313 ms 22996 KB Output is correct
12 Correct 116 ms 18656 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 449 ms 27092 KB Output is correct
2 Correct 445 ms 26764 KB Output is correct
3 Correct 449 ms 27016 KB Output is correct
4 Correct 326 ms 25008 KB Output is correct
5 Correct 307 ms 24964 KB Output is correct
6 Correct 129 ms 17944 KB Output is correct
7 Correct 432 ms 26828 KB Output is correct
8 Correct 461 ms 26920 KB Output is correct
9 Correct 380 ms 27448 KB Output is correct
10 Correct 274 ms 22664 KB Output is correct
11 Correct 313 ms 22996 KB Output is correct
12 Correct 116 ms 18656 KB Output is correct
13 Correct 535 ms 27744 KB Output is correct
14 Correct 480 ms 27012 KB Output is correct
15 Correct 485 ms 26600 KB Output is correct
16 Correct 360 ms 25664 KB Output is correct
17 Correct 351 ms 25420 KB Output is correct
18 Correct 158 ms 18456 KB Output is correct
19 Correct 488 ms 28036 KB Output is correct
20 Correct 493 ms 26932 KB Output is correct
21 Correct 465 ms 27524 KB Output is correct
22 Correct 276 ms 21888 KB Output is correct
23 Correct 322 ms 22836 KB Output is correct
24 Correct 102 ms 18436 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 11 ms 3676 KB Output is correct
8 Correct 13 ms 3720 KB Output is correct
9 Correct 12 ms 3648 KB Output is correct
10 Correct 9 ms 3388 KB Output is correct
11 Correct 10 ms 3432 KB Output is correct
12 Correct 5 ms 2844 KB Output is correct
13 Correct 10 ms 3532 KB Output is correct
14 Correct 10 ms 3508 KB Output is correct
15 Correct 10 ms 3648 KB Output is correct
16 Correct 6 ms 3132 KB Output is correct
17 Correct 8 ms 3232 KB Output is correct
18 Correct 4 ms 2844 KB Output is correct
19 Correct 449 ms 27092 KB Output is correct
20 Correct 445 ms 26764 KB Output is correct
21 Correct 449 ms 27016 KB Output is correct
22 Correct 326 ms 25008 KB Output is correct
23 Correct 307 ms 24964 KB Output is correct
24 Correct 129 ms 17944 KB Output is correct
25 Correct 432 ms 26828 KB Output is correct
26 Correct 461 ms 26920 KB Output is correct
27 Correct 380 ms 27448 KB Output is correct
28 Correct 274 ms 22664 KB Output is correct
29 Correct 313 ms 22996 KB Output is correct
30 Correct 116 ms 18656 KB Output is correct
31 Correct 535 ms 27744 KB Output is correct
32 Correct 480 ms 27012 KB Output is correct
33 Correct 485 ms 26600 KB Output is correct
34 Correct 360 ms 25664 KB Output is correct
35 Correct 351 ms 25420 KB Output is correct
36 Correct 158 ms 18456 KB Output is correct
37 Correct 488 ms 28036 KB Output is correct
38 Correct 493 ms 26932 KB Output is correct
39 Correct 465 ms 27524 KB Output is correct
40 Correct 276 ms 21888 KB Output is correct
41 Correct 322 ms 22836 KB Output is correct
42 Correct 102 ms 18436 KB Output is correct
43 Correct 803 ms 49024 KB Output is correct
44 Correct 806 ms 48040 KB Output is correct
45 Correct 773 ms 48820 KB Output is correct
46 Correct 533 ms 38972 KB Output is correct
47 Correct 560 ms 39076 KB Output is correct
48 Correct 172 ms 17940 KB Output is correct
49 Correct 810 ms 48800 KB Output is correct
50 Correct 867 ms 48992 KB Output is correct
51 Correct 851 ms 48796 KB Output is correct
52 Correct 466 ms 34184 KB Output is correct
53 Correct 377 ms 30596 KB Output is correct