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Submission #209108

# Submission time Handle Problem Language Result Execution time Memory
209108 2020-03-13T08:21:07 Z Autoratch Foehn Phenomena (JOI17_foehn_phenomena) C++14
100 / 100
 184 ms 8316 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 2e5 + 2;

int n,q;
long long s,t,a[N],ans,fw[N];

void update(int idx,long long val){ idx++; while(idx<N) fw[idx]+=val,idx+=(idx & -idx); }

long long read(int idx){ idx++; long long val = 0; while(idx>0) val+=fw[idx],idx-=(idx & -idx); return val; }

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

int 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],update(i,a[i]),update(i+1,-a[i]);
    for(int i = 0;i < n;i++) ans+=cal(a[i],a[i+1]);
    while(q--)
    {
        int l,r;
        long long x;
        cin >> l >> r >> x;
        ans-=cal(read(l-1),read(l));
        if(r<n) ans-=cal(read(r),read(r+1));
        update(l,x),update(r+1,-x);
        ans+=cal(read(l-1),read(l));
        if(r<n) ans+=cal(read(r),read(r+1));
        cout << ans << '\n';
    }
}

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 504 KB Output is correct
2 Correct 7 ms 504 KB Output is correct
3 Correct 6 ms 508 KB Output is correct
4 Correct 6 ms 504 KB Output is correct
5 Correct 7 ms 504 KB Output is correct
6 Correct 7 ms 632 KB Output is correct
7 Correct 6 ms 504 KB Output is correct
8 Correct 7 ms 504 KB Output is correct
9 Correct 7 ms 504 KB Output is correct
10 Correct 7 ms 504 KB Output is correct
11 Correct 6 ms 504 KB Output is correct
12 Correct 7 ms 504 KB Output is correct
13 Correct 6 ms 504 KB Output is correct
14 Correct 7 ms 504 KB Output is correct
15 Correct 6 ms 504 KB Output is correct
16 Correct 6 ms 632 KB Output is correct
17 Correct 6 ms 504 KB Output is correct
18 Correct 6 ms 504 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 175 ms 5860 KB Output is correct
2 Correct 179 ms 6520 KB Output is correct
3 Correct 178 ms 7156 KB Output is correct
4 Correct 172 ms 6136 KB Output is correct
5 Correct 172 ms 6928 KB Output is correct
6 Correct 128 ms 7416 KB Output is correct
7 Correct 129 ms 7288 KB Output is correct
8 Correct 171 ms 7416 KB Output is correct
9 Correct 165 ms 7672 KB Output is correct
10 Correct 169 ms 6392 KB Output is correct
11 Correct 137 ms 7416 KB Output is correct
12 Correct 127 ms 7800 KB Output is correct
13 Correct 131 ms 8184 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 504 KB Output is correct
2 Correct 7 ms 504 KB Output is correct
3 Correct 6 ms 508 KB Output is correct
4 Correct 6 ms 504 KB Output is correct
5 Correct 7 ms 504 KB Output is correct
6 Correct 7 ms 632 KB Output is correct
7 Correct 6 ms 504 KB Output is correct
8 Correct 7 ms 504 KB Output is correct
9 Correct 7 ms 504 KB Output is correct
10 Correct 7 ms 504 KB Output is correct
11 Correct 6 ms 504 KB Output is correct
12 Correct 7 ms 504 KB Output is correct
13 Correct 6 ms 504 KB Output is correct
14 Correct 7 ms 504 KB Output is correct
15 Correct 6 ms 504 KB Output is correct
16 Correct 6 ms 632 KB Output is correct
17 Correct 6 ms 504 KB Output is correct
18 Correct 6 ms 504 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 175 ms 5860 KB Output is correct
23 Correct 179 ms 6520 KB Output is correct
24 Correct 178 ms 7156 KB Output is correct
25 Correct 172 ms 6136 KB Output is correct
26 Correct 172 ms 6928 KB Output is correct
27 Correct 128 ms 7416 KB Output is correct
28 Correct 129 ms 7288 KB Output is correct
29 Correct 171 ms 7416 KB Output is correct
30 Correct 165 ms 7672 KB Output is correct
31 Correct 169 ms 6392 KB Output is correct
32 Correct 137 ms 7416 KB Output is correct
33 Correct 127 ms 7800 KB Output is correct
34 Correct 131 ms 8184 KB Output is correct
35 Correct 172 ms 6008 KB Output is correct
36 Correct 177 ms 7416 KB Output is correct
37 Correct 175 ms 8316 KB Output is correct
38 Correct 180 ms 7928 KB Output is correct
39 Correct 182 ms 8056 KB Output is correct
40 Correct 182 ms 7928 KB Output is correct
41 Correct 176 ms 7800 KB Output is correct
42 Correct 174 ms 7928 KB Output is correct
43 Correct 175 ms 7160 KB Output is correct
44 Correct 184 ms 7740 KB Output is correct
45 Correct 173 ms 7416 KB Output is correct
46 Correct 180 ms 8056 KB Output is correct
47 Correct 133 ms 8056 KB Output is correct
48 Correct 134 ms 8184 KB Output is correct
49 Correct 164 ms 7280 KB Output is correct
50 Correct 139 ms 7928 KB Output is correct
51 Correct 140 ms 7800 KB Output is correct
52 Correct 141 ms 7800 KB Output is correct