#include <stdio.h>
#include <algorithm>
#include <vector>
#include <map>
using namespace std;
map<int, int> chk;
int N,Q,C,X[100010],O[100010],Z; long long R[100010],B[1<<18],A[100010];
struct seg{
seg(int s_, int e_, int i_){s = s_; e = e_; i = i_;}
int s,e,i;
bool operator <(const seg t)const{return s == t.s ? e < t.e : s < t.s;}
};
vector<seg> intv[501];
void upt(int x, int p)
{
x = X[x]; O[x] += p;
B[x+Z] = R[x] * O[x];
x = (x + Z) >> 1;
while (x){
B[x] = max(B[x*2],B[x*2+1]);
x >>= 1;
}
}
int main()
{
scanf ("%d %d",&N,&Q);
for (int i=0;i<N;i++){
scanf ("%d",&X[i]);
chk[X[i]] = 0;
}
for (map<int, int>::iterator I = chk.begin(); I != chk.end(); I++) R[C] = I->first, I->second = C++;
for (int i=0;i<N;i++) X[i] = chk[X[i]];
for (Z=1;Z<C;Z<<=1);
for (int i=0,s,e;i<Q;i++){
scanf ("%d %d",&s,&e); s--;
intv[s/400+e/400].push_back(seg(s,e,i));
}
for (int i=0;i<500;i++) if (!intv[i].empty()){
for (int k=0;k<2*Z;k++) B[k] = 0;
for (int k=0;k<C;k++) O[k] = 0;
int s = 0, e = 0;
sort(intv[i].begin(),intv[i].end());
for (int j=0;j<intv[i].size();j++){
while (e < intv[i][j].e) upt(e++,1);
while (e > intv[i][j].e) upt(--e,-1);
while (s < intv[i][j].s) upt(s++,-1);
A[intv[i][j].i] = B[1];
}
}
for (int i=0;i<Q;i++) printf ("%lld\n",A[i]);
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
5616 KB |
Output is correct |
2 |
Correct |
0 ms |
5616 KB |
Output is correct |
3 |
Correct |
0 ms |
5616 KB |
Output is correct |
4 |
Correct |
0 ms |
5616 KB |
Output is correct |
5 |
Correct |
0 ms |
5616 KB |
Output is correct |
6 |
Correct |
0 ms |
5616 KB |
Output is correct |
7 |
Correct |
0 ms |
5616 KB |
Output is correct |
8 |
Correct |
0 ms |
5616 KB |
Output is correct |
9 |
Correct |
0 ms |
5616 KB |
Output is correct |
10 |
Correct |
0 ms |
5616 KB |
Output is correct |
11 |
Correct |
0 ms |
5616 KB |
Output is correct |
12 |
Correct |
0 ms |
5616 KB |
Output is correct |
13 |
Correct |
0 ms |
5616 KB |
Output is correct |
14 |
Correct |
0 ms |
5616 KB |
Output is correct |
15 |
Correct |
0 ms |
5616 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
5616 KB |
Output is correct |
2 |
Correct |
0 ms |
5616 KB |
Output is correct |
3 |
Correct |
4 ms |
5616 KB |
Output is correct |
4 |
Correct |
8 ms |
5616 KB |
Output is correct |
5 |
Correct |
20 ms |
5616 KB |
Output is correct |
6 |
Correct |
28 ms |
5616 KB |
Output is correct |
7 |
Correct |
32 ms |
5616 KB |
Output is correct |
8 |
Correct |
20 ms |
5616 KB |
Output is correct |
9 |
Correct |
24 ms |
5616 KB |
Output is correct |
10 |
Correct |
44 ms |
5748 KB |
Output is correct |
11 |
Correct |
44 ms |
5748 KB |
Output is correct |
12 |
Correct |
44 ms |
5748 KB |
Output is correct |
13 |
Correct |
44 ms |
5748 KB |
Output is correct |
14 |
Correct |
36 ms |
5752 KB |
Output is correct |
15 |
Correct |
40 ms |
5748 KB |
Output is correct |
16 |
Correct |
28 ms |
5616 KB |
Output is correct |
17 |
Correct |
8 ms |
5616 KB |
Output is correct |
18 |
Correct |
40 ms |
5748 KB |
Output is correct |
19 |
Correct |
44 ms |
5748 KB |
Output is correct |
20 |
Correct |
48 ms |
5748 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
5616 KB |
Output is correct |
2 |
Correct |
0 ms |
5616 KB |
Output is correct |
3 |
Correct |
0 ms |
5616 KB |
Output is correct |
4 |
Correct |
0 ms |
5616 KB |
Output is correct |
5 |
Correct |
0 ms |
5616 KB |
Output is correct |
6 |
Correct |
0 ms |
5616 KB |
Output is correct |
7 |
Correct |
12 ms |
5616 KB |
Output is correct |
8 |
Correct |
16 ms |
5748 KB |
Output is correct |
9 |
Correct |
140 ms |
5880 KB |
Output is correct |
10 |
Correct |
84 ms |
5616 KB |
Output is correct |
11 |
Correct |
1160 ms |
7204 KB |
Output is correct |
12 |
Correct |
296 ms |
5616 KB |
Output is correct |
13 |
Correct |
3188 ms |
6276 KB |
Output is correct |
14 |
Execution timed out |
4000 ms |
8388 KB |
Program timed out |
15 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
72 ms |
5752 KB |
Output is correct |
2 |
Correct |
268 ms |
6012 KB |
Output is correct |
3 |
Correct |
668 ms |
6412 KB |
Output is correct |
4 |
Correct |
1252 ms |
6936 KB |
Output is correct |
5 |
Correct |
1888 ms |
7204 KB |
Output is correct |
6 |
Correct |
2144 ms |
6936 KB |
Output is correct |
7 |
Correct |
2072 ms |
6940 KB |
Output is correct |
8 |
Correct |
1872 ms |
7072 KB |
Output is correct |
9 |
Correct |
1320 ms |
7200 KB |
Output is correct |
10 |
Correct |
736 ms |
7332 KB |
Output is correct |
11 |
Correct |
1872 ms |
7464 KB |
Output is correct |
12 |
Correct |
3588 ms |
7464 KB |
Output is correct |
13 |
Execution timed out |
4000 ms |
7728 KB |
Program timed out |
14 |
Halted |
0 ms |
0 KB |
- |