oj.uz

답안 #570248

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
570248 2022-05-28T21:55:39 Z elpro123 Mountains (NOI20_mountains) C++14
100 / 100
 670 ms 40268 KB 
#include<bits/stdc++.h>

using namespace std;

struct nodo{
	int s, e, m, cnt;
	nodo *l, *r;
        nodo(int s1, int e1){
        s=s1, e=e1, m=(s1+e1)/2, cnt=0;
		if(s == e) return;
		l = new nodo(s, m);
		r = new nodo(m+1, e);
	}
	void update(int x, int v){
		cnt += v;
		if(s == e) return;
		if(x <= m) l->update(x, v);
		else r->update(x, v);
	}
	int query(int x, int y){
		if(x <= s && y >= e) return cnt;
		int ret = 0;
		if(x <= m) ret += l->query(x, y);
		if(y >= m+1) ret += r->query(x, y);
		return ret;
	}
	void clear(){
		cnt = 0;
		if(s == e) return;
		l->clear();
		r->clear();
	}
};

 
int main(){
    long n; 
    cin>>n;
	long long H[n+1];
	for(int i=1; i<=n; i++){ 
        cin>>H[i];
    }

    long long izquierda[n+1], derecha[n+1];
    pair<long long, int> arreglo[n+1];
    int cnt = 1;
    long long total = 0;

    for(int i=1; i<=n; i++){ 
        arreglo[i] = {H[i], i};
    }
	sort(arreglo + 1, arreglo + n + 1);
 
	for(int i=1; i<=n; i++){
		if(i>1 and arreglo[i].first != arreglo[i-1].first){
            cnt++;
        }
		H[arreglo[i].second] = cnt;
	}
	
	nodo *algo = new nodo(0, n);
	for(int i=1; i<=n; i++){
		izquierda[i] = algo->query(0, H[i] - 1);
		algo->update(H[i], 1);
	}
	
	algo->clear();
	for(int i=n; i>0; i--){
		derecha[i] = algo->query(0, H[i] - 1);
		algo->update(H[i], 1);
	}
	
	for(int i=1; i<=n; i++){
		total += izquierda[i] * derecha[i];
	}

	cout<<total;
	return 0;
}

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 323 ms 40120 KB Output is correct
3 Correct 325 ms 40192 KB Output is correct
4 Correct 411 ms 40128 KB Output is correct
5 Correct 325 ms 40124 KB Output is correct
6 Correct 376 ms 40192 KB Output is correct
7 Correct 317 ms 40136 KB Output is correct
8 Correct 343 ms 40120 KB Output is correct
9 Correct 334 ms 40124 KB Output is correct
10 Correct 335 ms 40140 KB Output is correct

Subtask #2
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 213 ms 40188 KB Output is correct
2 Correct 186 ms 40192 KB Output is correct
3 Correct 203 ms 40120 KB Output is correct
4 Correct 211 ms 40120 KB Output is correct
5 Correct 178 ms 40144 KB Output is correct
6 Correct 181 ms 40140 KB Output is correct
7 Correct 184 ms 40192 KB Output is correct
8 Correct 211 ms 40120 KB Output is correct
9 Correct 160 ms 40188 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 213 ms 40188 KB Output is correct
2 Correct 186 ms 40192 KB Output is correct
3 Correct 203 ms 40120 KB Output is correct
4 Correct 211 ms 40120 KB Output is correct
5 Correct 178 ms 40144 KB Output is correct
6 Correct 181 ms 40140 KB Output is correct
7 Correct 184 ms 40192 KB Output is correct
8 Correct 211 ms 40120 KB Output is correct
9 Correct 160 ms 40188 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 217 ms 40192 KB Output is correct
12 Correct 233 ms 40268 KB Output is correct
13 Correct 219 ms 40192 KB Output is correct
14 Correct 223 ms 40200 KB Output is correct
15 Correct 234 ms 40136 KB Output is correct
16 Correct 216 ms 40192 KB Output is correct
17 Correct 214 ms 40144 KB Output is correct
18 Correct 169 ms 40264 KB Output is correct
19 Correct 222 ms 40128 KB Output is correct
20 Correct 1 ms 256 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #5
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 14 ms 1620 KB Output is correct
12 Correct 18 ms 1580 KB Output is correct
13 Correct 15 ms 1576 KB Output is correct
14 Correct 14 ms 1620 KB Output is correct
15 Correct 13 ms 1620 KB Output is correct
16 Correct 12 ms 1620 KB Output is correct
17 Correct 14 ms 1520 KB Output is correct
18 Correct 12 ms 1620 KB Output is correct
19 Correct 8 ms 1620 KB Output is correct
20 Correct 0 ms 212 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 213 ms 40188 KB Output is correct
2 Correct 186 ms 40192 KB Output is correct
3 Correct 203 ms 40120 KB Output is correct
4 Correct 211 ms 40120 KB Output is correct
5 Correct 178 ms 40144 KB Output is correct
6 Correct 181 ms 40140 KB Output is correct
7 Correct 184 ms 40192 KB Output is correct
8 Correct 211 ms 40120 KB Output is correct
9 Correct 160 ms 40188 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 217 ms 40192 KB Output is correct
12 Correct 233 ms 40268 KB Output is correct
13 Correct 219 ms 40192 KB Output is correct
14 Correct 223 ms 40200 KB Output is correct
15 Correct 234 ms 40136 KB Output is correct
16 Correct 216 ms 40192 KB Output is correct
17 Correct 214 ms 40144 KB Output is correct
18 Correct 169 ms 40264 KB Output is correct
19 Correct 222 ms 40128 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 468 ms 40140 KB Output is correct
22 Correct 362 ms 40108 KB Output is correct
23 Correct 401 ms 40188 KB Output is correct
24 Correct 387 ms 40200 KB Output is correct
25 Correct 452 ms 40260 KB Output is correct
26 Correct 387 ms 40252 KB Output is correct
27 Correct 428 ms 40188 KB Output is correct
28 Correct 205 ms 40196 KB Output is correct
29 Correct 204 ms 40192 KB Output is correct
30 Correct 0 ms 212 KB Output is correct

Subtask #7
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 323 ms 40120 KB Output is correct
3 Correct 325 ms 40192 KB Output is correct
4 Correct 411 ms 40128 KB Output is correct
5 Correct 325 ms 40124 KB Output is correct
6 Correct 376 ms 40192 KB Output is correct
7 Correct 317 ms 40136 KB Output is correct
8 Correct 343 ms 40120 KB Output is correct
9 Correct 334 ms 40124 KB Output is correct
10 Correct 335 ms 40140 KB Output is correct
11 Correct 213 ms 40188 KB Output is correct
12 Correct 186 ms 40192 KB Output is correct
13 Correct 203 ms 40120 KB Output is correct
14 Correct 211 ms 40120 KB Output is correct
15 Correct 178 ms 40144 KB Output is correct
16 Correct 181 ms 40140 KB Output is correct
17 Correct 184 ms 40192 KB Output is correct
18 Correct 211 ms 40120 KB Output is correct
19 Correct 160 ms 40188 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 217 ms 40192 KB Output is correct
22 Correct 233 ms 40268 KB Output is correct
23 Correct 219 ms 40192 KB Output is correct
24 Correct 223 ms 40200 KB Output is correct
25 Correct 234 ms 40136 KB Output is correct
26 Correct 216 ms 40192 KB Output is correct
27 Correct 214 ms 40144 KB Output is correct
28 Correct 169 ms 40264 KB Output is correct
29 Correct 222 ms 40128 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 14 ms 1620 KB Output is correct
42 Correct 18 ms 1580 KB Output is correct
43 Correct 15 ms 1576 KB Output is correct
44 Correct 14 ms 1620 KB Output is correct
45 Correct 13 ms 1620 KB Output is correct
46 Correct 12 ms 1620 KB Output is correct
47 Correct 14 ms 1520 KB Output is correct
48 Correct 12 ms 1620 KB Output is correct
49 Correct 8 ms 1620 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 468 ms 40140 KB Output is correct
52 Correct 362 ms 40108 KB Output is correct
53 Correct 401 ms 40188 KB Output is correct
54 Correct 387 ms 40200 KB Output is correct
55 Correct 452 ms 40260 KB Output is correct
56 Correct 387 ms 40252 KB Output is correct
57 Correct 428 ms 40188 KB Output is correct
58 Correct 205 ms 40196 KB Output is correct
59 Correct 204 ms 40192 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 666 ms 40196 KB Output is correct
62 Correct 640 ms 40192 KB Output is correct
63 Correct 581 ms 40188 KB Output is correct
64 Correct 670 ms 40192 KB Output is correct
65 Correct 593 ms 40192 KB Output is correct
66 Correct 646 ms 40196 KB Output is correct
67 Correct 636 ms 40132 KB Output is correct
68 Correct 599 ms 40196 KB Output is correct
69 Correct 388 ms 40192 KB Output is correct
70 Correct 1 ms 212 KB Output is correct