#include<cstdio>
#include<vector>
#include<algorithm>
using namespace std;
vector<int> cpr;
int a[100001];
struct Query{ int s,e,index; long long ans; } d[100001];
int sq=316;
bool comp_sqd(Query a,Query b)
{
if(a.s/sq==b.s/sq) return a.e<b.e;
else return a.s<b.s;
}
bool comp_ind(Query a,Query b){ return a.index<b.index; }
long long tree[1<<18]; int base=1<<17;
void add(int place,int value)
{
place+=base-1;
tree[place]+=value;
for(place>>=1;place>=1;place>>=1)
tree[place]=max(tree[place*2],tree[place*2+1]);
}
int main()
{
int n,q;
scanf("%d %d",&n,&q);
for(int i=1;i<=n;i++)
scanf("%d",&a[i]), cpr.push_back(a[i]);
sort(cpr.begin(),cpr.end());
for(int i=1;i<=n;i++)
a[i]=lower_bound(cpr.begin(),cpr.end(),a[i])-cpr.begin()+1;
for(int i=1;i<=q;i++)
scanf("%d %d",&d[i].s,&d[i].e),d[i].index=i;
sort(d+1,d+1+q,comp_sqd);
int s=1,e=0; // [s,e]
for(int i=1;i<=q;i++)
{
while(e<d[i].e)
{
e++;
add(a[e],cpr[a[e]-1]);
}
while(e>d[i].e)
{
add(a[e],-cpr[a[e]-1]);
e--;
}
while(s>d[i].s)
{
s--;
add(a[s],cpr[a[s]-1]);
}
while(s<d[i].s)
{
add(a[s],-cpr[a[s]-1]);
s++;
}
d[i].ans=tree[1];
}
sort(d+1,d+1+q,comp_ind);
for(int i=1;i<=q;i++)
printf("%lld\n",d[i].ans);
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
5996 KB |
Output is correct |
2 |
Correct |
0 ms |
5996 KB |
Output is correct |
3 |
Correct |
0 ms |
5996 KB |
Output is correct |
4 |
Correct |
0 ms |
5996 KB |
Output is correct |
5 |
Correct |
0 ms |
5996 KB |
Output is correct |
6 |
Correct |
0 ms |
5996 KB |
Output is correct |
7 |
Correct |
0 ms |
5996 KB |
Output is correct |
8 |
Correct |
0 ms |
5996 KB |
Output is correct |
9 |
Correct |
1 ms |
5996 KB |
Output is correct |
10 |
Correct |
0 ms |
5996 KB |
Output is correct |
11 |
Correct |
0 ms |
5996 KB |
Output is correct |
12 |
Correct |
0 ms |
5996 KB |
Output is correct |
13 |
Correct |
0 ms |
5996 KB |
Output is correct |
14 |
Correct |
0 ms |
5996 KB |
Output is correct |
15 |
Correct |
0 ms |
5996 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
5996 KB |
Output is correct |
2 |
Correct |
3 ms |
5996 KB |
Output is correct |
3 |
Correct |
3 ms |
5996 KB |
Output is correct |
4 |
Correct |
11 ms |
5996 KB |
Output is correct |
5 |
Correct |
24 ms |
5996 KB |
Output is correct |
6 |
Correct |
36 ms |
5996 KB |
Output is correct |
7 |
Correct |
39 ms |
5996 KB |
Output is correct |
8 |
Correct |
39 ms |
5996 KB |
Output is correct |
9 |
Correct |
39 ms |
5996 KB |
Output is correct |
10 |
Correct |
39 ms |
5996 KB |
Output is correct |
11 |
Correct |
41 ms |
5996 KB |
Output is correct |
12 |
Correct |
37 ms |
5996 KB |
Output is correct |
13 |
Correct |
40 ms |
5996 KB |
Output is correct |
14 |
Correct |
37 ms |
5996 KB |
Output is correct |
15 |
Correct |
40 ms |
5996 KB |
Output is correct |
16 |
Correct |
40 ms |
5996 KB |
Output is correct |
17 |
Correct |
41 ms |
5996 KB |
Output is correct |
18 |
Correct |
40 ms |
5996 KB |
Output is correct |
19 |
Correct |
40 ms |
5996 KB |
Output is correct |
20 |
Correct |
37 ms |
5996 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
5996 KB |
Output is correct |
2 |
Correct |
0 ms |
5996 KB |
Output is correct |
3 |
Correct |
0 ms |
5996 KB |
Output is correct |
4 |
Correct |
0 ms |
5996 KB |
Output is correct |
5 |
Correct |
2 ms |
5996 KB |
Output is correct |
6 |
Correct |
2 ms |
5996 KB |
Output is correct |
7 |
Correct |
0 ms |
5996 KB |
Output is correct |
8 |
Correct |
7 ms |
5996 KB |
Output is correct |
9 |
Correct |
14 ms |
6128 KB |
Output is correct |
10 |
Correct |
7 ms |
6384 KB |
Output is correct |
11 |
Correct |
114 ms |
6768 KB |
Output is correct |
12 |
Correct |
52 ms |
6768 KB |
Output is correct |
13 |
Correct |
65 ms |
6768 KB |
Output is correct |
14 |
Correct |
101 ms |
6768 KB |
Output is correct |
15 |
Correct |
170 ms |
6768 KB |
Output is correct |
16 |
Correct |
86 ms |
6768 KB |
Output is correct |
17 |
Correct |
57 ms |
6768 KB |
Output is correct |
18 |
Correct |
91 ms |
6768 KB |
Output is correct |
19 |
Correct |
105 ms |
6768 KB |
Output is correct |
20 |
Correct |
59 ms |
6768 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
85 ms |
5996 KB |
Output is correct |
2 |
Correct |
225 ms |
6128 KB |
Output is correct |
3 |
Correct |
423 ms |
6128 KB |
Output is correct |
4 |
Correct |
675 ms |
6384 KB |
Output is correct |
5 |
Correct |
968 ms |
6384 KB |
Output is correct |
6 |
Correct |
1286 ms |
6384 KB |
Output is correct |
7 |
Correct |
1508 ms |
6768 KB |
Output is correct |
8 |
Correct |
1694 ms |
6768 KB |
Output is correct |
9 |
Correct |
2074 ms |
6768 KB |
Output is correct |
10 |
Correct |
2981 ms |
6768 KB |
Output is correct |
11 |
Correct |
2421 ms |
6768 KB |
Output is correct |
12 |
Correct |
2687 ms |
6768 KB |
Output is correct |
13 |
Correct |
3121 ms |
6768 KB |
Output is correct |
14 |
Correct |
3093 ms |
6768 KB |
Output is correct |
15 |
Correct |
3134 ms |
6768 KB |
Output is correct |
16 |
Correct |
3146 ms |
6768 KB |
Output is correct |
17 |
Correct |
3145 ms |
6768 KB |
Output is correct |
18 |
Correct |
3156 ms |
6768 KB |
Output is correct |
19 |
Correct |
3152 ms |
6768 KB |
Output is correct |
20 |
Correct |
3144 ms |
6768 KB |
Output is correct |
21 |
Correct |
3156 ms |
6768 KB |
Output is correct |
22 |
Correct |
3137 ms |
6768 KB |
Output is correct |
23 |
Correct |
3137 ms |
6768 KB |
Output is correct |
24 |
Correct |
3116 ms |
6768 KB |
Output is correct |
25 |
Correct |
2989 ms |
6768 KB |
Output is correct |