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Submission #51905

# Submission time Handle Problem Language Result Execution time Memory
51905 2018-06-22T15:10:26 Z WLZ Foehn Phenomena (JOI17_foehn_phenomena) C++17
100 / 100
 224 ms 168964 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, q, s, t;
  cin >> n >> q >> s >> t;
  auto newVal = [&](long long x) {
    if (x < 0) {
      return x * s;
    } else {
      return x * t;
    }
  };
  vector<int> a(n + 1);
  for (int i = 0; i <= n; i++) {
    cin >> a[i];
  }
  vector<long long> b(n + 1);
  long long ans = 0ll;
  for (int i = 1; i <= n; i++) {
    b[i] = a[i - 1] - a[i];
    if (b[i] < 0) {
      ans += b[i] * s;
    } else {
      ans += b[i] * t;
    }
  }
  while (q--) {
    int l, r, x;
    cin >> l >> r >> x;
    if (l > 0) {
      ans -= newVal(b[l]);
      b[l] -= x;
      ans += newVal(b[l]);
    }
    if (r < n) {
      ans -= newVal(b[r + 1]);
      b[r + 1] += x;
      ans += newVal(b[r + 1]);
    }
    cout << ans << '\n';
  }
  return 0;
}

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 4 ms 684 KB Output is correct
3 Correct 4 ms 684 KB Output is correct
4 Correct 3 ms 776 KB Output is correct
5 Correct 3 ms 776 KB Output is correct
6 Correct 4 ms 820 KB Output is correct
7 Correct 5 ms 868 KB Output is correct
8 Correct 4 ms 1044 KB Output is correct
9 Correct 5 ms 1200 KB Output is correct
10 Correct 4 ms 1304 KB Output is correct
11 Correct 4 ms 1304 KB Output is correct
12 Correct 5 ms 1304 KB Output is correct
13 Correct 4 ms 1464 KB Output is correct
14 Correct 4 ms 1464 KB Output is correct
15 Correct 4 ms 1464 KB Output is correct
16 Correct 3 ms 1500 KB Output is correct
17 Correct 4 ms 1548 KB Output is correct
18 Correct 4 ms 1592 KB Output is correct
19 Correct 3 ms 1636 KB Output is correct
20 Correct 3 ms 1636 KB Output is correct
21 Correct 2 ms 1644 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 167 ms 10764 KB Output is correct
2 Correct 146 ms 16804 KB Output is correct
3 Correct 190 ms 22844 KB Output is correct
4 Correct 174 ms 27560 KB Output is correct
5 Correct 151 ms 34420 KB Output is correct
6 Correct 123 ms 39536 KB Output is correct
7 Correct 121 ms 44168 KB Output is correct
8 Correct 157 ms 49576 KB Output is correct
9 Correct 155 ms 55412 KB Output is correct
10 Correct 147 ms 59640 KB Output is correct
11 Correct 120 ms 65292 KB Output is correct
12 Correct 132 ms 70456 KB Output is correct
13 Correct 115 ms 75420 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 4 ms 684 KB Output is correct
3 Correct 4 ms 684 KB Output is correct
4 Correct 3 ms 776 KB Output is correct
5 Correct 3 ms 776 KB Output is correct
6 Correct 4 ms 820 KB Output is correct
7 Correct 5 ms 868 KB Output is correct
8 Correct 4 ms 1044 KB Output is correct
9 Correct 5 ms 1200 KB Output is correct
10 Correct 4 ms 1304 KB Output is correct
11 Correct 4 ms 1304 KB Output is correct
12 Correct 5 ms 1304 KB Output is correct
13 Correct 4 ms 1464 KB Output is correct
14 Correct 4 ms 1464 KB Output is correct
15 Correct 4 ms 1464 KB Output is correct
16 Correct 3 ms 1500 KB Output is correct
17 Correct 4 ms 1548 KB Output is correct
18 Correct 4 ms 1592 KB Output is correct
19 Correct 3 ms 1636 KB Output is correct
20 Correct 3 ms 1636 KB Output is correct
21 Correct 2 ms 1644 KB Output is correct
22 Correct 167 ms 10764 KB Output is correct
23 Correct 146 ms 16804 KB Output is correct
24 Correct 190 ms 22844 KB Output is correct
25 Correct 174 ms 27560 KB Output is correct
26 Correct 151 ms 34420 KB Output is correct
27 Correct 123 ms 39536 KB Output is correct
28 Correct 121 ms 44168 KB Output is correct
29 Correct 157 ms 49576 KB Output is correct
30 Correct 155 ms 55412 KB Output is correct
31 Correct 147 ms 59640 KB Output is correct
32 Correct 120 ms 65292 KB Output is correct
33 Correct 132 ms 70456 KB Output is correct
34 Correct 115 ms 75420 KB Output is correct
35 Correct 154 ms 78692 KB Output is correct
36 Correct 188 ms 85524 KB Output is correct
37 Correct 198 ms 91712 KB Output is correct
38 Correct 224 ms 97004 KB Output is correct
39 Correct 167 ms 102424 KB Output is correct
40 Correct 168 ms 107852 KB Output is correct
41 Correct 149 ms 112996 KB Output is correct
42 Correct 156 ms 118568 KB Output is correct
43 Correct 196 ms 123428 KB Output is correct
44 Correct 150 ms 129116 KB Output is correct
45 Correct 140 ms 134592 KB Output is correct
46 Correct 184 ms 141416 KB Output is correct
47 Correct 154 ms 145868 KB Output is correct
48 Correct 126 ms 150660 KB Output is correct
49 Correct 143 ms 154020 KB Output is correct
50 Correct 117 ms 159280 KB Output is correct
51 Correct 114 ms 164112 KB Output is correct
52 Correct 118 ms 168964 KB Output is correct