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Submission #365000

# Submission time Handle Problem Language Result Execution time Memory
365000 2021-02-10T17:40:07 Z tushar_2658 Foehn Phenomena (JOI17_foehn_phenomena) C++14
100 / 100
 158 ms 7404 KB 
#include "bits/stdc++.h"
using namespace std;

const int maxn = 200005;
using ll = long long;

ll a[maxn], diff[maxn];
ll S, T;

int main(int argc, char const *argv[])
{
  ios::sync_with_stdio(false); 
  cin.tie(0);

  int n, m;
  cin >> n >> m >> S >> T;
  ll sum = 0;
  ll ans = 0;
  for(int i = 0; i <= n; ++i){
    cin >> a[i];
    if(i){
      diff[i] = a[i] - a[i - 1];
      if(diff[i] >= 0){
        ans += diff[i] * (-S);
      }else {
        ans += (-diff[i]) * T;
      }
    }
  }
  while(m--){
    int l, r;
    ll x; 
    cin >> l >> r >> x; 
    if(diff[l] >= 0){
      ans -= (diff[l] * (-S));
    }else {
      ans -= (-diff[l] * T);
    }
    if(r < n){
      if(diff[r + 1] >= 0){
        ans -= (diff[r + 1] * (-S));
      }else {
        ans -= (-diff[r + 1] * T);
      }
    }
    diff[l] += x;
    diff[r + 1] -= x;
    if(diff[l] >= 0){
      ans += (diff[l] * (-S));
    }else {
      ans += (-diff[l] * T);
    }
    if(r < n){
      if(diff[r + 1] >= 0){
        ans += (diff[r + 1] * (-S));
      }else {
        ans += (-diff[r + 1] * T);
      }
    }
    cout << ans << '\n';
  }

  return 0;
}

Compilation message

foehn_phenomena.cpp: In function 'int main(int, const char**)':
foehn_phenomena.cpp:17:6: warning: unused variable 'sum' [-Wunused-variable]
   17 |   ll sum = 0;
      |      ^~~

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 1 ms 364 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 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 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 1 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 113 ms 4972 KB Output is correct
2 Correct 126 ms 5612 KB Output is correct
3 Correct 146 ms 6124 KB Output is correct
4 Correct 107 ms 5228 KB Output is correct
5 Correct 129 ms 6124 KB Output is correct
6 Correct 109 ms 6508 KB Output is correct
7 Correct 99 ms 6508 KB Output is correct
8 Correct 119 ms 6380 KB Output is correct
9 Correct 158 ms 6764 KB Output is correct
10 Correct 116 ms 5484 KB Output is correct
11 Correct 100 ms 6508 KB Output is correct
12 Correct 99 ms 6892 KB Output is correct
13 Correct 98 ms 7276 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 1 ms 364 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 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 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 1 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 113 ms 4972 KB Output is correct
23 Correct 126 ms 5612 KB Output is correct
24 Correct 146 ms 6124 KB Output is correct
25 Correct 107 ms 5228 KB Output is correct
26 Correct 129 ms 6124 KB Output is correct
27 Correct 109 ms 6508 KB Output is correct
28 Correct 99 ms 6508 KB Output is correct
29 Correct 119 ms 6380 KB Output is correct
30 Correct 158 ms 6764 KB Output is correct
31 Correct 116 ms 5484 KB Output is correct
32 Correct 100 ms 6508 KB Output is correct
33 Correct 99 ms 6892 KB Output is correct
34 Correct 98 ms 7276 KB Output is correct
35 Correct 120 ms 5100 KB Output is correct
36 Correct 119 ms 6508 KB Output is correct
37 Correct 120 ms 7404 KB Output is correct
38 Correct 117 ms 7148 KB Output is correct
39 Correct 124 ms 7104 KB Output is correct
40 Correct 151 ms 7148 KB Output is correct
41 Correct 123 ms 6892 KB Output is correct
42 Correct 126 ms 7048 KB Output is correct
43 Correct 120 ms 6436 KB Output is correct
44 Correct 119 ms 6764 KB Output is correct
45 Correct 117 ms 6636 KB Output is correct
46 Correct 123 ms 7148 KB Output is correct
47 Correct 103 ms 7148 KB Output is correct
48 Correct 102 ms 7320 KB Output is correct
49 Correct 121 ms 6400 KB Output is correct
50 Correct 96 ms 7020 KB Output is correct
51 Correct 99 ms 7020 KB Output is correct
52 Correct 99 ms 7020 KB Output is correct