#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define int long long
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define LL_MAX LONG_LONG_MAX
#define LL_MIN LONG_LONG_MIN
#define speed ios_base::sync_with_stdio(false); cin.tie(0)
#define stMx(a,b) a = max(a,b)
#define stMn(a,b) a = min(a,b)
struct qry{int l, r, idx;};
#define REP(i, a, b) for(int i = a; i < b; i++)
#define lb(v,x) (lower_bound(v,v+N,x)-v)
#define BSIZE 400
bool comp(qry a, qry b) {
if(a.l/BSIZE==b.l/BSIZE) return a.r<b.r;
return a.l<b.l;
}
int vec[121010];
#define MAXN 131072
int s[2*MAXN], e[2*MAXN], val[2*MAXN];
void init(int st, int en) {
s[1]=st; e[1]=en;
REP(i,1,131072) if(s[i]!=e[i]) {
//printf("%lld %lld %lld\n", i, s[i], e[i]);
int mid = (s[i] + e[i]) >> 1;
s[i<<1]=s[i];
e[i<<1]=mid;
s[i<<1|1]=mid+1,
e[i<<1|1]=e[i];
}
}
void update(int x, int u) {
int i = x + 131072;
val[i] += u;
while(i) {
i /= 2;
if(i) val[i] = max(val[i<<1],val[i<<1|1]);
}
}
int32_t main() {
ios_base::sync_with_stdio(false); cin.tie(0);
int N, Q, l=1,r=0; cin >> N >> Q;
ll ans[Q]; int arr[N+1], v[N+1];
init(0,131071);
REP(i,1,N+1) {cin>>arr[i]; vec[i-1]=arr[i];}
sort(vec,vec+N);
REP(i,1,N+1) v[i]=lb(vec,arr[i]);
qry query[Q];
REP(i,0,Q) {cin>>query[i].l>>query[i].r; query[i].idx=i;}
sort(query,query+Q,comp);
REP(i,0,Q) {
while(l>query[i].l) {l--;update(v[l],vec[v[l]]);}
while(l<query[i].l) {update(v[l],-vec[v[l]]);l++;}
while(r>query[i].r) {update(v[r],-vec[v[r]]);r--;}
while(r<query[i].r) {r++;update(v[r],vec[v[r]]);}
ans[query[i].idx]=val[1];
}
REP(i,0,Q) cout<<ans[i]<<"\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4436 KB |
Output is correct |
2 |
Correct |
2 ms |
4436 KB |
Output is correct |
3 |
Correct |
2 ms |
4436 KB |
Output is correct |
4 |
Correct |
2 ms |
4428 KB |
Output is correct |
5 |
Correct |
3 ms |
4436 KB |
Output is correct |
6 |
Correct |
2 ms |
4436 KB |
Output is correct |
7 |
Correct |
3 ms |
4436 KB |
Output is correct |
8 |
Correct |
2 ms |
4436 KB |
Output is correct |
9 |
Correct |
2 ms |
4436 KB |
Output is correct |
10 |
Correct |
3 ms |
4436 KB |
Output is correct |
11 |
Correct |
2 ms |
4436 KB |
Output is correct |
12 |
Correct |
2 ms |
4436 KB |
Output is correct |
13 |
Correct |
2 ms |
4436 KB |
Output is correct |
14 |
Correct |
2 ms |
4436 KB |
Output is correct |
15 |
Correct |
2 ms |
4428 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4436 KB |
Output is correct |
2 |
Correct |
2 ms |
4436 KB |
Output is correct |
3 |
Correct |
2 ms |
4436 KB |
Output is correct |
4 |
Correct |
2 ms |
4428 KB |
Output is correct |
5 |
Correct |
3 ms |
4436 KB |
Output is correct |
6 |
Correct |
2 ms |
4436 KB |
Output is correct |
7 |
Correct |
3 ms |
4436 KB |
Output is correct |
8 |
Correct |
2 ms |
4436 KB |
Output is correct |
9 |
Correct |
2 ms |
4436 KB |
Output is correct |
10 |
Correct |
3 ms |
4436 KB |
Output is correct |
11 |
Correct |
2 ms |
4436 KB |
Output is correct |
12 |
Correct |
2 ms |
4436 KB |
Output is correct |
13 |
Correct |
2 ms |
4436 KB |
Output is correct |
14 |
Correct |
2 ms |
4436 KB |
Output is correct |
15 |
Correct |
2 ms |
4428 KB |
Output is correct |
16 |
Correct |
3 ms |
4488 KB |
Output is correct |
17 |
Correct |
4 ms |
4436 KB |
Output is correct |
18 |
Correct |
6 ms |
4436 KB |
Output is correct |
19 |
Correct |
10 ms |
4616 KB |
Output is correct |
20 |
Correct |
20 ms |
4736 KB |
Output is correct |
21 |
Correct |
29 ms |
4824 KB |
Output is correct |
22 |
Correct |
29 ms |
4888 KB |
Output is correct |
23 |
Correct |
36 ms |
4888 KB |
Output is correct |
24 |
Correct |
41 ms |
4776 KB |
Output is correct |
25 |
Correct |
29 ms |
4888 KB |
Output is correct |
26 |
Correct |
30 ms |
4896 KB |
Output is correct |
27 |
Correct |
30 ms |
4904 KB |
Output is correct |
28 |
Correct |
30 ms |
4896 KB |
Output is correct |
29 |
Correct |
30 ms |
4912 KB |
Output is correct |
30 |
Correct |
30 ms |
4944 KB |
Output is correct |
31 |
Correct |
30 ms |
4908 KB |
Output is correct |
32 |
Correct |
40 ms |
4868 KB |
Output is correct |
33 |
Correct |
31 ms |
4896 KB |
Output is correct |
34 |
Correct |
35 ms |
4940 KB |
Output is correct |
35 |
Correct |
30 ms |
4896 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4436 KB |
Output is correct |
2 |
Correct |
2 ms |
4436 KB |
Output is correct |
3 |
Correct |
3 ms |
4428 KB |
Output is correct |
4 |
Correct |
2 ms |
4428 KB |
Output is correct |
5 |
Correct |
3 ms |
4564 KB |
Output is correct |
6 |
Correct |
4 ms |
4564 KB |
Output is correct |
7 |
Correct |
4 ms |
4696 KB |
Output is correct |
8 |
Correct |
5 ms |
5076 KB |
Output is correct |
9 |
Correct |
11 ms |
5768 KB |
Output is correct |
10 |
Correct |
14 ms |
5972 KB |
Output is correct |
11 |
Correct |
55 ms |
11752 KB |
Output is correct |
12 |
Correct |
30 ms |
8968 KB |
Output is correct |
13 |
Correct |
42 ms |
10248 KB |
Output is correct |
14 |
Correct |
52 ms |
11948 KB |
Output is correct |
15 |
Correct |
68 ms |
14604 KB |
Output is correct |
16 |
Correct |
53 ms |
12008 KB |
Output is correct |
17 |
Correct |
32 ms |
9636 KB |
Output is correct |
18 |
Correct |
50 ms |
12512 KB |
Output is correct |
19 |
Correct |
43 ms |
13532 KB |
Output is correct |
20 |
Correct |
26 ms |
10184 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4436 KB |
Output is correct |
2 |
Correct |
2 ms |
4436 KB |
Output is correct |
3 |
Correct |
2 ms |
4436 KB |
Output is correct |
4 |
Correct |
2 ms |
4428 KB |
Output is correct |
5 |
Correct |
3 ms |
4436 KB |
Output is correct |
6 |
Correct |
2 ms |
4436 KB |
Output is correct |
7 |
Correct |
3 ms |
4436 KB |
Output is correct |
8 |
Correct |
2 ms |
4436 KB |
Output is correct |
9 |
Correct |
2 ms |
4436 KB |
Output is correct |
10 |
Correct |
3 ms |
4436 KB |
Output is correct |
11 |
Correct |
2 ms |
4436 KB |
Output is correct |
12 |
Correct |
2 ms |
4436 KB |
Output is correct |
13 |
Correct |
2 ms |
4436 KB |
Output is correct |
14 |
Correct |
2 ms |
4436 KB |
Output is correct |
15 |
Correct |
2 ms |
4428 KB |
Output is correct |
16 |
Correct |
3 ms |
4488 KB |
Output is correct |
17 |
Correct |
4 ms |
4436 KB |
Output is correct |
18 |
Correct |
6 ms |
4436 KB |
Output is correct |
19 |
Correct |
10 ms |
4616 KB |
Output is correct |
20 |
Correct |
20 ms |
4736 KB |
Output is correct |
21 |
Correct |
29 ms |
4824 KB |
Output is correct |
22 |
Correct |
29 ms |
4888 KB |
Output is correct |
23 |
Correct |
36 ms |
4888 KB |
Output is correct |
24 |
Correct |
41 ms |
4776 KB |
Output is correct |
25 |
Correct |
29 ms |
4888 KB |
Output is correct |
26 |
Correct |
30 ms |
4896 KB |
Output is correct |
27 |
Correct |
30 ms |
4904 KB |
Output is correct |
28 |
Correct |
30 ms |
4896 KB |
Output is correct |
29 |
Correct |
30 ms |
4912 KB |
Output is correct |
30 |
Correct |
30 ms |
4944 KB |
Output is correct |
31 |
Correct |
30 ms |
4908 KB |
Output is correct |
32 |
Correct |
40 ms |
4868 KB |
Output is correct |
33 |
Correct |
31 ms |
4896 KB |
Output is correct |
34 |
Correct |
35 ms |
4940 KB |
Output is correct |
35 |
Correct |
30 ms |
4896 KB |
Output is correct |
36 |
Correct |
2 ms |
4436 KB |
Output is correct |
37 |
Correct |
2 ms |
4436 KB |
Output is correct |
38 |
Correct |
3 ms |
4428 KB |
Output is correct |
39 |
Correct |
2 ms |
4428 KB |
Output is correct |
40 |
Correct |
3 ms |
4564 KB |
Output is correct |
41 |
Correct |
4 ms |
4564 KB |
Output is correct |
42 |
Correct |
4 ms |
4696 KB |
Output is correct |
43 |
Correct |
5 ms |
5076 KB |
Output is correct |
44 |
Correct |
11 ms |
5768 KB |
Output is correct |
45 |
Correct |
14 ms |
5972 KB |
Output is correct |
46 |
Correct |
55 ms |
11752 KB |
Output is correct |
47 |
Correct |
30 ms |
8968 KB |
Output is correct |
48 |
Correct |
42 ms |
10248 KB |
Output is correct |
49 |
Correct |
52 ms |
11948 KB |
Output is correct |
50 |
Correct |
68 ms |
14604 KB |
Output is correct |
51 |
Correct |
53 ms |
12008 KB |
Output is correct |
52 |
Correct |
32 ms |
9636 KB |
Output is correct |
53 |
Correct |
50 ms |
12512 KB |
Output is correct |
54 |
Correct |
43 ms |
13532 KB |
Output is correct |
55 |
Correct |
26 ms |
10184 KB |
Output is correct |
56 |
Correct |
66 ms |
5320 KB |
Output is correct |
57 |
Correct |
159 ms |
6364 KB |
Output is correct |
58 |
Correct |
293 ms |
7324 KB |
Output is correct |
59 |
Correct |
408 ms |
8280 KB |
Output is correct |
60 |
Correct |
559 ms |
9316 KB |
Output is correct |
61 |
Correct |
719 ms |
10524 KB |
Output is correct |
62 |
Correct |
873 ms |
11584 KB |
Output is correct |
63 |
Correct |
1018 ms |
12084 KB |
Output is correct |
64 |
Correct |
1335 ms |
12648 KB |
Output is correct |
65 |
Correct |
2897 ms |
12736 KB |
Output is correct |
66 |
Correct |
1403 ms |
13032 KB |
Output is correct |
67 |
Correct |
1538 ms |
14220 KB |
Output is correct |
68 |
Correct |
1659 ms |
14532 KB |
Output is correct |
69 |
Correct |
1627 ms |
14640 KB |
Output is correct |
70 |
Correct |
1702 ms |
14632 KB |
Output is correct |
71 |
Correct |
1651 ms |
14636 KB |
Output is correct |
72 |
Correct |
1881 ms |
14632 KB |
Output is correct |
73 |
Correct |
1870 ms |
14608 KB |
Output is correct |
74 |
Correct |
1878 ms |
14648 KB |
Output is correct |
75 |
Correct |
1687 ms |
14640 KB |
Output is correct |
76 |
Correct |
1653 ms |
14636 KB |
Output is correct |
77 |
Correct |
1749 ms |
14640 KB |
Output is correct |
78 |
Correct |
1691 ms |
14712 KB |
Output is correct |
79 |
Correct |
1656 ms |
14760 KB |
Output is correct |
80 |
Correct |
2974 ms |
13480 KB |
Output is correct |