#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
const int N=2e5+5;
int a[N],ans[N*4],t[N*4];
int n,q,s,T;
void build(int v,int tl,int tr){
if(tl==tr){
if(tl+1<=n){
if(a[tl+1]>a[tl])ans[v]=(a[tl]-a[tl+1])*s;
else ans[v]=(a[tl]-a[tl+1])*T;
}
}
else{
int tm=(tl+tr)/2;
build(v*2,tl,tm);
build(v*2+1,tm+1,tr);
ans[v]=ans[v*2]+ans[v*2+1];
}
}
void update(int v,int tl,int tr,int pos,int x){
if(tl==tr){
ans[v]=x;
}
else{
int tm=(tl+tr)/2;
if(pos<=tm)update(v*2,tl,tm,pos,x);
else update(v*2+1,tm+1,tr,pos,x);
ans[v]=ans[v*2]+ans[v*2+1];
}
}
void add(int v,int tl,int tr,int l,int r,int x){
if(r<tl or l>tr)return;
if(l<=tl && tr<=r){
t[v]+=x;
return;
}
int tm=(tl+tr)/2;
add(v*2,tl,tm,l,r,x);
add(v*2+1,tm+1,tr,l,r,x);
}
int get(int v,int tl,int tr,int pos){
if(tl==tr)return t[v];
else{
int tm=(tl+tr)/2;
if(pos<=tm)return t[v]+get(v*2,tl,tm,pos);
else return t[v]+get(v*2+1,tm+1,tr,pos);
}
}
signed main(){
ios_base::sync_with_stdio();
cin.tie(0);cout.tie(0);
cin>>n>>q>>s>>T;
n++;
for(int i=1;i<=n;i++){
cin>>a[i];
}
build(1,1,n);
while(q--){
int l,r,x;
cin>>l>>r>>x;
l++;r++;
add(1,1,n,l,r,x);
if(l-1>=1){
int a1=a[l-1]+get(1,1,n,l-1);
int a2=a[l]+get(1,1,n,l);
int new_val=0;
if(a1<a2)new_val=(a1-a2)*s;
else new_val=(a1-a2)*T;
update(1,1,n,l-1,new_val);
}
if(r+1<=n){
int a1=a[r]+get(1,1,n,r);
int a2=a[r+1]+get(1,1,n,r+1);
int new_val=0;
if(a1<a2)new_val=(a1-a2)*s;
else new_val=(a1-a2)*T;
update(1,1,n,r,new_val);
}
cout<<ans[1]<<"\n";
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
2396 KB |
Output is correct |
2 |
Correct |
3 ms |
2396 KB |
Output is correct |
3 |
Correct |
3 ms |
2396 KB |
Output is correct |
4 |
Correct |
4 ms |
2392 KB |
Output is correct |
5 |
Correct |
3 ms |
2396 KB |
Output is correct |
6 |
Correct |
4 ms |
2396 KB |
Output is correct |
7 |
Correct |
3 ms |
2396 KB |
Output is correct |
8 |
Correct |
15 ms |
2396 KB |
Output is correct |
9 |
Correct |
4 ms |
2396 KB |
Output is correct |
10 |
Correct |
3 ms |
2644 KB |
Output is correct |
11 |
Correct |
4 ms |
2396 KB |
Output is correct |
12 |
Correct |
4 ms |
2612 KB |
Output is correct |
13 |
Correct |
2 ms |
2396 KB |
Output is correct |
14 |
Correct |
3 ms |
2580 KB |
Output is correct |
15 |
Correct |
3 ms |
2396 KB |
Output is correct |
16 |
Correct |
3 ms |
2396 KB |
Output is correct |
17 |
Correct |
2 ms |
2580 KB |
Output is correct |
18 |
Correct |
3 ms |
2396 KB |
Output is correct |
19 |
Correct |
1 ms |
2652 KB |
Output is correct |
20 |
Correct |
1 ms |
2392 KB |
Output is correct |
21 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
359 ms |
18944 KB |
Output is correct |
2 |
Correct |
423 ms |
19792 KB |
Output is correct |
3 |
Correct |
407 ms |
20268 KB |
Output is correct |
4 |
Correct |
369 ms |
19588 KB |
Output is correct |
5 |
Correct |
395 ms |
20672 KB |
Output is correct |
6 |
Correct |
206 ms |
17752 KB |
Output is correct |
7 |
Correct |
224 ms |
17580 KB |
Output is correct |
8 |
Correct |
330 ms |
20788 KB |
Output is correct |
9 |
Correct |
363 ms |
21228 KB |
Output is correct |
10 |
Correct |
330 ms |
19748 KB |
Output is correct |
11 |
Correct |
219 ms |
17692 KB |
Output is correct |
12 |
Correct |
241 ms |
18368 KB |
Output is correct |
13 |
Correct |
236 ms |
18512 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
2396 KB |
Output is correct |
2 |
Correct |
3 ms |
2396 KB |
Output is correct |
3 |
Correct |
3 ms |
2396 KB |
Output is correct |
4 |
Correct |
4 ms |
2392 KB |
Output is correct |
5 |
Correct |
3 ms |
2396 KB |
Output is correct |
6 |
Correct |
4 ms |
2396 KB |
Output is correct |
7 |
Correct |
3 ms |
2396 KB |
Output is correct |
8 |
Correct |
15 ms |
2396 KB |
Output is correct |
9 |
Correct |
4 ms |
2396 KB |
Output is correct |
10 |
Correct |
3 ms |
2644 KB |
Output is correct |
11 |
Correct |
4 ms |
2396 KB |
Output is correct |
12 |
Correct |
4 ms |
2612 KB |
Output is correct |
13 |
Correct |
2 ms |
2396 KB |
Output is correct |
14 |
Correct |
3 ms |
2580 KB |
Output is correct |
15 |
Correct |
3 ms |
2396 KB |
Output is correct |
16 |
Correct |
3 ms |
2396 KB |
Output is correct |
17 |
Correct |
2 ms |
2580 KB |
Output is correct |
18 |
Correct |
3 ms |
2396 KB |
Output is correct |
19 |
Correct |
1 ms |
2652 KB |
Output is correct |
20 |
Correct |
1 ms |
2392 KB |
Output is correct |
21 |
Correct |
1 ms |
2396 KB |
Output is correct |
22 |
Correct |
359 ms |
18944 KB |
Output is correct |
23 |
Correct |
423 ms |
19792 KB |
Output is correct |
24 |
Correct |
407 ms |
20268 KB |
Output is correct |
25 |
Correct |
369 ms |
19588 KB |
Output is correct |
26 |
Correct |
395 ms |
20672 KB |
Output is correct |
27 |
Correct |
206 ms |
17752 KB |
Output is correct |
28 |
Correct |
224 ms |
17580 KB |
Output is correct |
29 |
Correct |
330 ms |
20788 KB |
Output is correct |
30 |
Correct |
363 ms |
21228 KB |
Output is correct |
31 |
Correct |
330 ms |
19748 KB |
Output is correct |
32 |
Correct |
219 ms |
17692 KB |
Output is correct |
33 |
Correct |
241 ms |
18368 KB |
Output is correct |
34 |
Correct |
236 ms |
18512 KB |
Output is correct |
35 |
Correct |
386 ms |
19388 KB |
Output is correct |
36 |
Correct |
400 ms |
20740 KB |
Output is correct |
37 |
Correct |
416 ms |
21268 KB |
Output is correct |
38 |
Correct |
391 ms |
21236 KB |
Output is correct |
39 |
Correct |
381 ms |
21076 KB |
Output is correct |
40 |
Correct |
434 ms |
21332 KB |
Output is correct |
41 |
Correct |
430 ms |
21012 KB |
Output is correct |
42 |
Correct |
390 ms |
21452 KB |
Output is correct |
43 |
Correct |
401 ms |
20528 KB |
Output is correct |
44 |
Correct |
380 ms |
20736 KB |
Output is correct |
45 |
Correct |
409 ms |
20952 KB |
Output is correct |
46 |
Correct |
429 ms |
21976 KB |
Output is correct |
47 |
Correct |
204 ms |
18392 KB |
Output is correct |
48 |
Correct |
228 ms |
18272 KB |
Output is correct |
49 |
Correct |
351 ms |
19280 KB |
Output is correct |
50 |
Correct |
225 ms |
18084 KB |
Output is correct |
51 |
Correct |
213 ms |
18576 KB |
Output is correct |
52 |
Correct |
246 ms |
18260 KB |
Output is correct |