oj.uz

답안 #997969

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
997969 2024-06-13T07:23:13 Z vjudge1 Examination (JOI19_examination) C++17
100 / 100
 326 ms 51060 KB 
#include<bits/stdc++.h>
#define all(x) (x).begin() , (x).end()
#define pll pair<long long, long long>
#define pii pair<int , int>
#define fi first
#define se second
#define bit(i,j) ((j >> i) & 1)
using namespace std;
 
#define int long long
const long long inf = 1e18+1;
const int mod = 1e9+7;
const int MAXN = 3e6+100;
 
struct BIT {
  int b[MAXN], n;
 
  void init(int _n) {
    n = _n;
    for(int i = 0 ; i <= n ; ++i) b[i] = 0;
  }
  inline 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;
struct Pt{
	int x , y , z , i , t;	
};
Pt a[MAXN];
int ans[MAXN];
void cdq(int l , int r){
	if(l == r) return ;
	int mid = l + r >> 1;
	cdq(l , mid) ; cdq(mid+1 , r);
	int i = l, j = mid+1 ,sum = 0;
	vector<int> record;
	vector<Pt> tmp;
	while(i <= mid && j <= r){
		if(a[i].y > a[j].y) {
			if(a[i].t == 0) bit.update(a[i].z , 1) , sum ++ , record.push_back(a[i].z);
			tmp.push_back(a[i++]);
		}
		else{
			ans[a[j].i] += sum - bit.query(a[j].z);
			tmp.push_back(a[j++]);
		}
	}
	while(i <= mid) tmp.push_back(a[i++]);
	while(j <= r) ans[a[j].i] += sum - bit.query(a[j].z), tmp.push_back(a[j++]);
	for(int i = l ; i <= r ; i++) a[i] = tmp[i-l];
	for(auto i : record) bit.update(i , -1);
	vector<int> ().swap(record);
  	vector<Pt> ().swap(tmp);
}
map<int , int> mp;
int32_t main(){
  	//freopen("KNIGHTGAME.inp", "r", stdin);
	//freopen("KNIGHTGAME.out", "w", stdout);
	ios_base::sync_with_stdio(0); cin.tie(0);
 
	int n , q; cin >> n >> q;
	vector<int> comp;
	for(int i = 1 ; i <= n ; i++) cin >> a[i].x >> a[i].y, a[i].i = i , a[i].z = a[i].x + a[i].y, a[i].t = 0 , comp.push_back(a[i].z);
	for(int j = 1 ; j <= q ; j ++){
		int x , y , z; cin>> x >> y >> z;
		a[n + j] = {x-1 , y-1 , z-1 , n + j , 1};
		comp.push_back(z-1);
	}
	sort(all(comp));
	comp.erase(unique(comp.begin() , comp.end()) , comp.end());
	for(int i = 0 ; i < comp.size() ;i++) mp[comp[i]] = i+1;
	for(int i = 1 ; i <= n + q ; i++) a[i].z = mp[a[i].z];
	
	sort(a+1, a+n+q+1, [&](auto a, auto b) { 
      return (a.x == b.x ? (a.y == b.y ? a.z < b.z : a.y < b.y) : a.x > b.x); 
  	}); 
	bit.init(n + q);
	cdq(1 , n + q);
	for(int i = 1 ; i <= q ; i++) cout << ans[i + n] << "\n";
 
	return 0;
}

Compilation message

examination.cpp: In function 'void cdq(long long int, long long int)':
examination.cpp:39:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   39 |  int mid = l + r >> 1;
      |            ~~^~~
examination.cpp: In function 'int32_t main()':
examination.cpp:77:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |  for(int i = 0 ; i < comp.size() ;i++) mp[comp[i]] = i+1;
      |                  ~~^~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 1 ms 4560 KB Output is correct
7 Correct 6 ms 5396 KB Output is correct
8 Correct 7 ms 5400 KB Output is correct
9 Correct 7 ms 5400 KB Output is correct
10 Correct 6 ms 5400 KB Output is correct
11 Correct 6 ms 5440 KB Output is correct
12 Correct 3 ms 5080 KB Output is correct
13 Correct 6 ms 5236 KB Output is correct
14 Correct 6 ms 5224 KB Output is correct
15 Correct 6 ms 5220 KB Output is correct
16 Correct 5 ms 5240 KB Output is correct
17 Correct 6 ms 5516 KB Output is correct
18 Correct 3 ms 5084 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 236 ms 41892 KB Output is correct
2 Correct 227 ms 41704 KB Output is correct
3 Correct 227 ms 42176 KB Output is correct
4 Correct 210 ms 42400 KB Output is correct
5 Correct 178 ms 41520 KB Output is correct
6 Correct 129 ms 38372 KB Output is correct
7 Correct 223 ms 41436 KB Output is correct
8 Correct 239 ms 42528 KB Output is correct
9 Correct 222 ms 42400 KB Output is correct
10 Correct 161 ms 42316 KB Output is correct
11 Correct 197 ms 40488 KB Output is correct
12 Correct 115 ms 36784 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 236 ms 41892 KB Output is correct
2 Correct 227 ms 41704 KB Output is correct
3 Correct 227 ms 42176 KB Output is correct
4 Correct 210 ms 42400 KB Output is correct
5 Correct 178 ms 41520 KB Output is correct
6 Correct 129 ms 38372 KB Output is correct
7 Correct 223 ms 41436 KB Output is correct
8 Correct 239 ms 42528 KB Output is correct
9 Correct 222 ms 42400 KB Output is correct
10 Correct 161 ms 42316 KB Output is correct
11 Correct 197 ms 40488 KB Output is correct
12 Correct 115 ms 36784 KB Output is correct
13 Correct 286 ms 45932 KB Output is correct
14 Correct 269 ms 45392 KB Output is correct
15 Correct 232 ms 41488 KB Output is correct
16 Correct 247 ms 42536 KB Output is correct
17 Correct 222 ms 42184 KB Output is correct
18 Correct 131 ms 36908 KB Output is correct
19 Correct 315 ms 45100 KB Output is correct
20 Correct 270 ms 43996 KB Output is correct
21 Correct 274 ms 45096 KB Output is correct
22 Correct 166 ms 42272 KB Output is correct
23 Correct 192 ms 41416 KB Output is correct
24 Correct 123 ms 36936 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 1 ms 4560 KB Output is correct
7 Correct 6 ms 5396 KB Output is correct
8 Correct 7 ms 5400 KB Output is correct
9 Correct 7 ms 5400 KB Output is correct
10 Correct 6 ms 5400 KB Output is correct
11 Correct 6 ms 5440 KB Output is correct
12 Correct 3 ms 5080 KB Output is correct
13 Correct 6 ms 5236 KB Output is correct
14 Correct 6 ms 5224 KB Output is correct
15 Correct 6 ms 5220 KB Output is correct
16 Correct 5 ms 5240 KB Output is correct
17 Correct 6 ms 5516 KB Output is correct
18 Correct 3 ms 5084 KB Output is correct
19 Correct 236 ms 41892 KB Output is correct
20 Correct 227 ms 41704 KB Output is correct
21 Correct 227 ms 42176 KB Output is correct
22 Correct 210 ms 42400 KB Output is correct
23 Correct 178 ms 41520 KB Output is correct
24 Correct 129 ms 38372 KB Output is correct
25 Correct 223 ms 41436 KB Output is correct
26 Correct 239 ms 42528 KB Output is correct
27 Correct 222 ms 42400 KB Output is correct
28 Correct 161 ms 42316 KB Output is correct
29 Correct 197 ms 40488 KB Output is correct
30 Correct 115 ms 36784 KB Output is correct
31 Correct 286 ms 45932 KB Output is correct
32 Correct 269 ms 45392 KB Output is correct
33 Correct 232 ms 41488 KB Output is correct
34 Correct 247 ms 42536 KB Output is correct
35 Correct 222 ms 42184 KB Output is correct
36 Correct 131 ms 36908 KB Output is correct
37 Correct 315 ms 45100 KB Output is correct
38 Correct 270 ms 43996 KB Output is correct
39 Correct 274 ms 45096 KB Output is correct
40 Correct 166 ms 42272 KB Output is correct
41 Correct 192 ms 41416 KB Output is correct
42 Correct 123 ms 36936 KB Output is correct
43 Correct 326 ms 49928 KB Output is correct
44 Correct 308 ms 51060 KB Output is correct
45 Correct 322 ms 49168 KB Output is correct
46 Correct 304 ms 49816 KB Output is correct
47 Correct 277 ms 49200 KB Output is correct
48 Correct 132 ms 38296 KB Output is correct
49 Correct 292 ms 50804 KB Output is correct
50 Correct 317 ms 49344 KB Output is correct
51 Correct 302 ms 49536 KB Output is correct
52 Correct 267 ms 50596 KB Output is correct
53 Correct 201 ms 43644 KB Output is correct