Submission #321638

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
321638	2020-11-13T00:44:45 Z	casperwang	Foehn Phenomena (JOI17_foehn_phenomena)	C++14	100 / 100	132 ms	13164 KB

foehn_phenomena

#include <bits/stdc++.h>
#define int long long
using namespace std;

const int MAXN = 200000;
int n, q, s, t;
int l, r, x;
int a[MAXN+1];
int d[MAXN+1];
int ans;

signed main() {
  ios_base::sync_with_stdio(0), cin.tie(0);
  cin >> n >> q >> s >> t;
  for (int i = 0; i <= n; i++) {
    cin >> a[i];
    if (i) d[i] = a[i] - a[i-1];
  }
  for (int i = 1; i <= n; i++)
    ans += -(d[i] > 0 ? s : t) * d[i];
  for (int i = 1; i <= q; i++) {
    cin >> l >> r >> x;
    ans -= -(d[l] > 0 ? s : t) * d[l];
    d[l] += x;
    ans += -(d[l] > 0 ? s : t) * d[l];
    if (r < n) {
      ans -= -(d[r+1] > 0 ? s : t) * d[r+1];
      d[r+1] -= x;
      ans += -(d[r+1] > 0 ? s : t) * d[r+1];
    }
    cout << ans << "\n";
  }
}

Subtask #1

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	396 KB	Output is correct
2	Correct	2 ms	364 KB	Output is correct
3	Correct	4 ms	368 KB	Output is correct
4	Correct	2 ms	364 KB	Output is correct
5	Correct	2 ms	364 KB	Output is correct
6	Correct	2 ms	364 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	364 KB	Output is correct
9	Correct	2 ms	364 KB	Output is correct
10	Correct	2 ms	364 KB	Output is correct
11	Correct	2 ms	364 KB	Output is correct
12	Correct	2 ms	364 KB	Output is correct
13	Correct	2 ms	364 KB	Output is correct
14	Correct	2 ms	364 KB	Output is correct
15	Correct	2 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct
17	Correct	2 ms	364 KB	Output is correct
18	Correct	2 ms	364 KB	Output is correct
19	Correct	2 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	0 ms	364 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	118 ms	4972 KB	Output is correct
2	Correct	124 ms	5536 KB	Output is correct
3	Correct	132 ms	6712 KB	Output is correct
4	Correct	121 ms	6124 KB	Output is correct
5	Correct	118 ms	7916 KB	Output is correct
6	Correct	106 ms	9452 KB	Output is correct
7	Correct	101 ms	9452 KB	Output is correct
8	Correct	118 ms	9964 KB	Output is correct
9	Correct	125 ms	10988 KB	Output is correct
10	Correct	119 ms	9836 KB	Output is correct
11	Correct	96 ms	10956 KB	Output is correct
12	Correct	106 ms	11756 KB	Output is correct
13	Correct	103 ms	11884 KB	Output is correct

Subtask #3

60.0 / 60.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	396 KB	Output is correct
2	Correct	2 ms	364 KB	Output is correct
3	Correct	4 ms	368 KB	Output is correct
4	Correct	2 ms	364 KB	Output is correct
5	Correct	2 ms	364 KB	Output is correct
6	Correct	2 ms	364 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	364 KB	Output is correct
9	Correct	2 ms	364 KB	Output is correct
10	Correct	2 ms	364 KB	Output is correct
11	Correct	2 ms	364 KB	Output is correct
12	Correct	2 ms	364 KB	Output is correct
13	Correct	2 ms	364 KB	Output is correct
14	Correct	2 ms	364 KB	Output is correct
15	Correct	2 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct
17	Correct	2 ms	364 KB	Output is correct
18	Correct	2 ms	364 KB	Output is correct
19	Correct	2 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	0 ms	364 KB	Output is correct
22	Correct	118 ms	4972 KB	Output is correct
23	Correct	124 ms	5536 KB	Output is correct
24	Correct	132 ms	6712 KB	Output is correct
25	Correct	121 ms	6124 KB	Output is correct
26	Correct	118 ms	7916 KB	Output is correct
27	Correct	106 ms	9452 KB	Output is correct
28	Correct	101 ms	9452 KB	Output is correct
29	Correct	118 ms	9964 KB	Output is correct
30	Correct	125 ms	10988 KB	Output is correct
31	Correct	119 ms	9836 KB	Output is correct
32	Correct	96 ms	10956 KB	Output is correct
33	Correct	106 ms	11756 KB	Output is correct
34	Correct	103 ms	11884 KB	Output is correct
35	Correct	116 ms	8044 KB	Output is correct
36	Correct	128 ms	12012 KB	Output is correct
37	Correct	123 ms	12396 KB	Output is correct
38	Correct	121 ms	12524 KB	Output is correct
39	Correct	121 ms	12396 KB	Output is correct
40	Correct	124 ms	12524 KB	Output is correct
41	Correct	128 ms	11548 KB	Output is correct
42	Correct	121 ms	12396 KB	Output is correct
43	Correct	120 ms	11756 KB	Output is correct
44	Correct	124 ms	12268 KB	Output is correct
45	Correct	121 ms	12140 KB	Output is correct
46	Correct	122 ms	13164 KB	Output is correct
47	Correct	102 ms	11756 KB	Output is correct
48	Correct	102 ms	11756 KB	Output is correct
49	Correct	111 ms	10732 KB	Output is correct
50	Correct	100 ms	11500 KB	Output is correct
51	Correct	104 ms	11884 KB	Output is correct
52	Correct	101 ms	11756 KB	Output is correct