#include "bits/stdc++.h"
using namespace std;
const int N=1e5+5,Q=1e5+5;
const int S = 600;
struct Query{
int l,r,p,bk;
};
Query qr[Q];
int n,q,x[N];
struct node{
int s,e,m; long long val;
node *l, *r;
node(int _s, int _e){
s=_s; e=_e;
m=(s+e)>>1;
val = 0;
}
void create(){
if(s!=e){
l=new node(s,m);
r=new node(m+1,e);
}
}
void upd(int p, int v){
if(s==e) val += (long long) v;
else{
if(l==NULL) create();
if(p<=m) l->upd(p,v);
else r->upd(p,v);
val = max(l->val,r->val);
}
}
long long qry(){
return val;
}
} *root;
bool comp(Query A, Query B){
if(A.bk != B.bk) return A.bk < B.bk;
return A.bk % 2 ? A.r > B.r : A.r < B.r;
}
int32_t main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
cin>>n>>q;
for(int i=1; i<=n; i++) cin>>x[i];
for(int i=0; i<q; i++){
cin>>qr[i].l>>qr[i].r;
qr[i].p = i;
qr[i].bk = qr[i].l / S;
}
sort(qr,qr+q,comp);
root = new node(0,(int) 1e9+5);
int mo_left = 1, mo_right = 0;
long long ans[q];
for(int i=0; i<q; i++){
int left = qr[i].l, right = qr[i].r;
while(mo_right < right){
++mo_right;
int t = x[mo_right];
root->upd(t,t);
}
while(mo_left > left){
--mo_left;
int t = x[mo_left];
root->upd(t,t);
}
while(mo_right > right){
int t = x[mo_right];
root->upd(t,-t);
--mo_right;
}
while(mo_left < left){
int t = x[mo_left];
root->upd(t,-t);
++mo_left;
}
ans[qr[i].p] = root->qry();
//cout<<"HI"<<endl;
//cout<<qr[i].l<<' '<<qr[i].r<<' '<<ans[qr[i].p]<<endl;
}
for(int i=0; i<q; i++) cout<<ans[i]<<'\n';
}
# |
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 |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
1 ms |
492 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
2 ms |
492 KB |
Output is correct |
15 |
Correct |
2 ms |
364 KB |
Output is correct |
# |
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 |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
1 ms |
492 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
2 ms |
492 KB |
Output is correct |
15 |
Correct |
2 ms |
364 KB |
Output is correct |
16 |
Correct |
3 ms |
512 KB |
Output is correct |
17 |
Correct |
9 ms |
492 KB |
Output is correct |
18 |
Correct |
33 ms |
620 KB |
Output is correct |
19 |
Correct |
79 ms |
784 KB |
Output is correct |
20 |
Correct |
154 ms |
748 KB |
Output is correct |
21 |
Correct |
226 ms |
748 KB |
Output is correct |
22 |
Correct |
228 ms |
768 KB |
Output is correct |
23 |
Correct |
199 ms |
620 KB |
Output is correct |
24 |
Correct |
197 ms |
748 KB |
Output is correct |
25 |
Correct |
246 ms |
1132 KB |
Output is correct |
26 |
Correct |
286 ms |
2124 KB |
Output is correct |
27 |
Correct |
317 ms |
2688 KB |
Output is correct |
28 |
Correct |
330 ms |
2924 KB |
Output is correct |
29 |
Correct |
331 ms |
2156 KB |
Output is correct |
30 |
Correct |
326 ms |
2540 KB |
Output is correct |
31 |
Correct |
238 ms |
748 KB |
Output is correct |
32 |
Correct |
182 ms |
876 KB |
Output is correct |
33 |
Correct |
316 ms |
2412 KB |
Output is correct |
34 |
Correct |
339 ms |
3948 KB |
Output is correct |
35 |
Correct |
352 ms |
4588 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
492 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
492 KB |
Output is correct |
5 |
Correct |
4 ms |
1132 KB |
Output is correct |
6 |
Correct |
5 ms |
492 KB |
Output is correct |
7 |
Correct |
13 ms |
2156 KB |
Output is correct |
8 |
Correct |
21 ms |
5888 KB |
Output is correct |
9 |
Correct |
54 ms |
11756 KB |
Output is correct |
10 |
Correct |
33 ms |
1004 KB |
Output is correct |
11 |
Correct |
126 ms |
4844 KB |
Output is correct |
12 |
Correct |
70 ms |
2028 KB |
Output is correct |
13 |
Correct |
203 ms |
11112 KB |
Output is correct |
14 |
Correct |
367 ms |
59372 KB |
Output is correct |
15 |
Correct |
354 ms |
82500 KB |
Output is correct |
16 |
Correct |
347 ms |
130028 KB |
Output is correct |
17 |
Correct |
57 ms |
2284 KB |
Output is correct |
18 |
Correct |
123 ms |
5100 KB |
Output is correct |
19 |
Correct |
123 ms |
14828 KB |
Output is correct |
20 |
Correct |
152 ms |
88428 KB |
Output is correct |
# |
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 |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
1 ms |
492 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
2 ms |
492 KB |
Output is correct |
15 |
Correct |
2 ms |
364 KB |
Output is correct |
16 |
Correct |
3 ms |
512 KB |
Output is correct |
17 |
Correct |
9 ms |
492 KB |
Output is correct |
18 |
Correct |
33 ms |
620 KB |
Output is correct |
19 |
Correct |
79 ms |
784 KB |
Output is correct |
20 |
Correct |
154 ms |
748 KB |
Output is correct |
21 |
Correct |
226 ms |
748 KB |
Output is correct |
22 |
Correct |
228 ms |
768 KB |
Output is correct |
23 |
Correct |
199 ms |
620 KB |
Output is correct |
24 |
Correct |
197 ms |
748 KB |
Output is correct |
25 |
Correct |
246 ms |
1132 KB |
Output is correct |
26 |
Correct |
286 ms |
2124 KB |
Output is correct |
27 |
Correct |
317 ms |
2688 KB |
Output is correct |
28 |
Correct |
330 ms |
2924 KB |
Output is correct |
29 |
Correct |
331 ms |
2156 KB |
Output is correct |
30 |
Correct |
326 ms |
2540 KB |
Output is correct |
31 |
Correct |
238 ms |
748 KB |
Output is correct |
32 |
Correct |
182 ms |
876 KB |
Output is correct |
33 |
Correct |
316 ms |
2412 KB |
Output is correct |
34 |
Correct |
339 ms |
3948 KB |
Output is correct |
35 |
Correct |
352 ms |
4588 KB |
Output is correct |
36 |
Correct |
1 ms |
364 KB |
Output is correct |
37 |
Correct |
1 ms |
492 KB |
Output is correct |
38 |
Correct |
1 ms |
364 KB |
Output is correct |
39 |
Correct |
1 ms |
492 KB |
Output is correct |
40 |
Correct |
4 ms |
1132 KB |
Output is correct |
41 |
Correct |
5 ms |
492 KB |
Output is correct |
42 |
Correct |
13 ms |
2156 KB |
Output is correct |
43 |
Correct |
21 ms |
5888 KB |
Output is correct |
44 |
Correct |
54 ms |
11756 KB |
Output is correct |
45 |
Correct |
33 ms |
1004 KB |
Output is correct |
46 |
Correct |
126 ms |
4844 KB |
Output is correct |
47 |
Correct |
70 ms |
2028 KB |
Output is correct |
48 |
Correct |
203 ms |
11112 KB |
Output is correct |
49 |
Correct |
367 ms |
59372 KB |
Output is correct |
50 |
Correct |
354 ms |
82500 KB |
Output is correct |
51 |
Correct |
347 ms |
130028 KB |
Output is correct |
52 |
Correct |
57 ms |
2284 KB |
Output is correct |
53 |
Correct |
123 ms |
5100 KB |
Output is correct |
54 |
Correct |
123 ms |
14828 KB |
Output is correct |
55 |
Correct |
152 ms |
88428 KB |
Output is correct |
56 |
Correct |
481 ms |
1004 KB |
Output is correct |
57 |
Correct |
1222 ms |
2188 KB |
Output is correct |
58 |
Correct |
2170 ms |
5612 KB |
Output is correct |
59 |
Correct |
3560 ms |
13808 KB |
Output is correct |
60 |
Execution timed out |
4026 ms |
16620 KB |
Time limit exceeded |
61 |
Halted |
0 ms |
0 KB |
- |