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Submission #146598

# Submission time Handle Problem Language Result Execution time Memory
146598 2019-08-24T16:26:06 Z wjoao Foehn Phenomena (JOI17_foehn_phenomena) C++17
100 / 100
 733 ms 11640 KB 
#include<bits/stdc++.h>
#define maxn 200100
#define int long long

using namespace std;

struct BIT{
	int v[maxn];
	void update(int x, int val){
		for(; x < maxn; x += x&-x)
			v[x] += val;
	}
	void rangeupdate(int x, int y, int val){
		update(x, val);
		update(y+1, -val);
	}
	int query(int x){
		if( x <= 0 ) return 0;
		if( x >= maxn ) x = maxn-1;

		int sum = 0;
		for(; x > 0; x -= x&-x)
			sum += v[x];
		return sum;
	}
} bit;

int n, q, s, t, res, anterior, atual, L, R, x;

int calc(int a, int b){
  if(a<b) return (a-b)*s;
  else return (a-b)*t;
}

main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
  cin >> n >> q >> s >> t;
  n++;
  for(int i = 1; i <= n; i++){
    cin >> atual;
    bit.rangeupdate(i, i, atual);
    res += calc(anterior, atual);
    anterior = atual;
  }
  for(int i = 1; i <= q; i++){
    cin >> L >> R >> x;
    L++; R++;

    res -= calc(bit.query(L-1), bit.query(L));
    if(R+1 <= n){
        res -= calc(bit.query(R), bit.query(R+1));
    }

    bit.rangeupdate(L, R, x);

    res += calc(bit.query(L-1), bit.query(L));
    if(R+1 <= n){
        res += calc(bit.query(R), bit.query(R+1));
    }

    cout << res << endl;
  }


  return 0;
}

Compilation message

foehn_phenomena.cpp:35:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 376 KB Output is correct
2 Correct 9 ms 376 KB Output is correct
3 Correct 9 ms 504 KB Output is correct
4 Correct 9 ms 376 KB Output is correct
5 Correct 9 ms 376 KB Output is correct
6 Correct 9 ms 376 KB Output is correct
7 Correct 9 ms 376 KB Output is correct
8 Correct 9 ms 376 KB Output is correct
9 Correct 9 ms 376 KB Output is correct
10 Correct 9 ms 376 KB Output is correct
11 Correct 9 ms 376 KB Output is correct
12 Correct 9 ms 376 KB Output is correct
13 Correct 9 ms 440 KB Output is correct
14 Correct 9 ms 376 KB Output is correct
15 Correct 9 ms 444 KB Output is correct
16 Correct 9 ms 376 KB Output is correct
17 Correct 9 ms 376 KB Output is correct
18 Correct 9 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 714 ms 3348 KB Output is correct
2 Correct 712 ms 9432 KB Output is correct
3 Correct 723 ms 10104 KB Output is correct
4 Correct 715 ms 9564 KB Output is correct
5 Correct 720 ms 10616 KB Output is correct
6 Correct 657 ms 9760 KB Output is correct
7 Correct 672 ms 9548 KB Output is correct
8 Correct 705 ms 10416 KB Output is correct
9 Correct 714 ms 10820 KB Output is correct
10 Correct 718 ms 9496 KB Output is correct
11 Correct 659 ms 9636 KB Output is correct
12 Correct 655 ms 10328 KB Output is correct
13 Correct 656 ms 10560 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 376 KB Output is correct
2 Correct 9 ms 376 KB Output is correct
3 Correct 9 ms 504 KB Output is correct
4 Correct 9 ms 376 KB Output is correct
5 Correct 9 ms 376 KB Output is correct
6 Correct 9 ms 376 KB Output is correct
7 Correct 9 ms 376 KB Output is correct
8 Correct 9 ms 376 KB Output is correct
9 Correct 9 ms 376 KB Output is correct
10 Correct 9 ms 376 KB Output is correct
11 Correct 9 ms 376 KB Output is correct
12 Correct 9 ms 376 KB Output is correct
13 Correct 9 ms 440 KB Output is correct
14 Correct 9 ms 376 KB Output is correct
15 Correct 9 ms 444 KB Output is correct
16 Correct 9 ms 376 KB Output is correct
17 Correct 9 ms 376 KB Output is correct
18 Correct 9 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 714 ms 3348 KB Output is correct
23 Correct 712 ms 9432 KB Output is correct
24 Correct 723 ms 10104 KB Output is correct
25 Correct 715 ms 9564 KB Output is correct
26 Correct 720 ms 10616 KB Output is correct
27 Correct 657 ms 9760 KB Output is correct
28 Correct 672 ms 9548 KB Output is correct
29 Correct 705 ms 10416 KB Output is correct
30 Correct 714 ms 10820 KB Output is correct
31 Correct 718 ms 9496 KB Output is correct
32 Correct 659 ms 9636 KB Output is correct
33 Correct 655 ms 10328 KB Output is correct
34 Correct 656 ms 10560 KB Output is correct
35 Correct 719 ms 9104 KB Output is correct
36 Correct 717 ms 10348 KB Output is correct
37 Correct 727 ms 11384 KB Output is correct
38 Correct 728 ms 11128 KB Output is correct
39 Correct 714 ms 11040 KB Output is correct
40 Correct 715 ms 11000 KB Output is correct
41 Correct 717 ms 10864 KB Output is correct
42 Correct 720 ms 10864 KB Output is correct
43 Correct 715 ms 10252 KB Output is correct
44 Correct 714 ms 10488 KB Output is correct
45 Correct 707 ms 10744 KB Output is correct
46 Correct 733 ms 11640 KB Output is correct
47 Correct 662 ms 10232 KB Output is correct
48 Correct 664 ms 10360 KB Output is correct
49 Correct 697 ms 9328 KB Output is correct
50 Correct 657 ms 10220 KB Output is correct
51 Correct 654 ms 10492 KB Output is correct
52 Correct 659 ms 10292 KB Output is correct