| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 651436 |
2022-10-18T18:12:50 Z |
Lobo |
Radio Towers (IOI22_towers) |
C++17 |
|
4000 ms |
12132 KB |
#include "towers.h"
#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
#define fr first
#define sc second
const int maxn = 1e5+10;
const int inf = 1e9+10;
int n, a[maxn], atv[maxn], pf[maxn];
pair<int,int> trmn[4*maxn], trmx[4*maxn];
void att(int no, int l, int r, int pos, int val) {
if(l > pos || r < pos) return;
if(l == r) {
trmn[no] = mp(val,pos);
trmx[no] = mp(val,pos);
return;
}
int f1=2*no,f2=2*no+1,mid=(l+r)/2;
att(f1,l,mid,pos,val);
att(f2,mid+1,r,pos,val);
trmn[no] = min(trmn[f1],trmn[f2]);
trmx[no] = max(trmx[f1],trmx[f2]);
}
pair<int,int> qrmn(int no, int l, int r, int L, int R) {
if(l > R || r < L) return mp(inf,0);
if(l >= L && r <= R) return trmn[no];
int f1=2*no,f2=2*no+1,mid=(l+r)/2;
return min(qrmn(f1,l,mid,L,R),qrmn(f2,mid+1,r,L,R));
}
pair<int,int> qrmx(int no, int l, int r, int L, int R) {
if(l > R || r < L) return mp(-inf,0);
if(l >= L && r <= R) return trmx[no];
int f1=2*no,f2=2*no+1,mid=(l+r)/2;
return max(qrmx(f1,l,mid,L,R),qrmx(f2,mid+1,r,L,R));
}
void init(int N, vector<int> H) {
n = N;
for(int i = 0; i < n; i++) {
a[i] = H[i];
att(1,0,n-1,i,a[i]);
}
}
int sol(int l, int r, int d) {
int i = qrmx(1,0,n-1,l,r).sc;
int ans = 0;
if(i != l && qrmn(1,0,n-1,l,i-1).fr <= a[i]-d) {
int ansl = sol(l,i-1,d);
ans+= max(ansl,1);
if(ansl == 0) {
atv[qrmn(1,0,n-1,l,i-1).sc] = 1;
}
}
if(i != r && qrmn(1,0,n-1,i+1,r).fr <= a[i]-d) {
int ansr = sol(i+1,r,d);
ans+= max(ansr,1);
if(ansr == 0) {
atv[qrmn(1,0,n-1,i+1,r).sc] = 1;
}
}
// if(i != l && qrmn(1,0,n-1,l,i-1).fr <= a[i]-d) ans+= max(1,sol(l,i-1,d));
// if(i != r && qrmn(1,0,n-1,i+1,r).fr <= a[i]-d) ans+= max(1,sol(i+1,r,d));
// cout << l << " " << r << " " << d << " " << ans << endl;
return ans;
}
bool calc = false;
int max_towers(int L, int R, int D) {
for(int i = 0; i < n; i++) atv[i] = 0;
sol(L,R,D);
pf[0] = atv[0];
for(int i = 1; i < n; i++) pf[i] = pf[i-1]+atv[i];
return max(1,pf[R]-(L==0 ? 0 : pf[L-1]));
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
4051 ms |
6156 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
1 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
408 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
0 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
464 KB |
Output is correct |
| 14 |
Correct |
2 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
2 ms |
336 KB |
Output is correct |
| 21 |
Correct |
2 ms |
336 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
1 ms |
464 KB |
Output is correct |
| 24 |
Correct |
2 ms |
464 KB |
Output is correct |
| 25 |
Correct |
1 ms |
336 KB |
Output is correct |
| 26 |
Correct |
1 ms |
336 KB |
Output is correct |
| 27 |
Correct |
2 ms |
336 KB |
Output is correct |
| 28 |
Correct |
1 ms |
336 KB |
Output is correct |
| 29 |
Correct |
1 ms |
336 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
2 ms |
336 KB |
Output is correct |
| 32 |
Correct |
1 ms |
464 KB |
Output is correct |
| 33 |
Correct |
1 ms |
464 KB |
Output is correct |
| 34 |
Correct |
1 ms |
336 KB |
Output is correct |
| 35 |
Correct |
2 ms |
464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
1 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
408 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
0 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
464 KB |
Output is correct |
| 14 |
Correct |
2 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
2 ms |
336 KB |
Output is correct |
| 21 |
Correct |
2 ms |
336 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
1 ms |
464 KB |
Output is correct |
| 24 |
Correct |
2 ms |
464 KB |
Output is correct |
| 25 |
Correct |
1 ms |
336 KB |
Output is correct |
| 26 |
Correct |
1 ms |
336 KB |
Output is correct |
| 27 |
Correct |
2 ms |
336 KB |
Output is correct |
| 28 |
Correct |
1 ms |
336 KB |
Output is correct |
| 29 |
Correct |
1 ms |
336 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
2 ms |
336 KB |
Output is correct |
| 32 |
Correct |
1 ms |
464 KB |
Output is correct |
| 33 |
Correct |
1 ms |
464 KB |
Output is correct |
| 34 |
Correct |
1 ms |
336 KB |
Output is correct |
| 35 |
Correct |
2 ms |
464 KB |
Output is correct |
| 36 |
Correct |
27 ms |
3272 KB |
Output is correct |
| 37 |
Correct |
36 ms |
5916 KB |
Output is correct |
| 38 |
Correct |
35 ms |
5960 KB |
Output is correct |
| 39 |
Correct |
33 ms |
5880 KB |
Output is correct |
| 40 |
Correct |
39 ms |
5908 KB |
Output is correct |
| 41 |
Correct |
56 ms |
5916 KB |
Output is correct |
| 42 |
Correct |
32 ms |
5928 KB |
Output is correct |
| 43 |
Correct |
46 ms |
8128 KB |
Output is correct |
| 44 |
Correct |
30 ms |
5916 KB |
Output is correct |
| 45 |
Correct |
29 ms |
5900 KB |
Output is correct |
| 46 |
Correct |
29 ms |
5916 KB |
Output is correct |
| 47 |
Correct |
43 ms |
5904 KB |
Output is correct |
| 48 |
Correct |
46 ms |
5920 KB |
Output is correct |
| 49 |
Correct |
34 ms |
5952 KB |
Output is correct |
| 50 |
Correct |
40 ms |
7248 KB |
Output is correct |
| 51 |
Correct |
46 ms |
8384 KB |
Output is correct |
| 52 |
Correct |
67 ms |
5904 KB |
Output is correct |
| 53 |
Correct |
71 ms |
5868 KB |
Output is correct |
| 54 |
Correct |
77 ms |
5940 KB |
Output is correct |
| 55 |
Correct |
57 ms |
12132 KB |
Output is correct |
| 56 |
Correct |
64 ms |
11544 KB |
Output is correct |
| 57 |
Correct |
50 ms |
5924 KB |
Output is correct |
| 58 |
Correct |
57 ms |
5932 KB |
Output is correct |
| 59 |
Correct |
64 ms |
6032 KB |
Output is correct |
| 60 |
Correct |
71 ms |
5980 KB |
Output is correct |
| 61 |
Correct |
74 ms |
5968 KB |
Output is correct |
| 62 |
Correct |
72 ms |
5960 KB |
Output is correct |
| 63 |
Correct |
69 ms |
5924 KB |
Output is correct |
| 64 |
Correct |
46 ms |
9028 KB |
Output is correct |
| 65 |
Correct |
42 ms |
8604 KB |
Output is correct |
| 66 |
Correct |
45 ms |
8256 KB |
Output is correct |
| 67 |
Correct |
46 ms |
8868 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
4019 ms |
5964 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
4018 ms |
1744 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
1 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
408 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
0 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
464 KB |
Output is correct |
| 14 |
Correct |
2 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
2 ms |
336 KB |
Output is correct |
| 21 |
Correct |
2 ms |
336 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
1 ms |
464 KB |
Output is correct |
| 24 |
Correct |
2 ms |
464 KB |
Output is correct |
| 25 |
Correct |
1 ms |
336 KB |
Output is correct |
| 26 |
Correct |
1 ms |
336 KB |
Output is correct |
| 27 |
Correct |
2 ms |
336 KB |
Output is correct |
| 28 |
Correct |
1 ms |
336 KB |
Output is correct |
| 29 |
Correct |
1 ms |
336 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
2 ms |
336 KB |
Output is correct |
| 32 |
Correct |
1 ms |
464 KB |
Output is correct |
| 33 |
Correct |
1 ms |
464 KB |
Output is correct |
| 34 |
Correct |
1 ms |
336 KB |
Output is correct |
| 35 |
Correct |
2 ms |
464 KB |
Output is correct |
| 36 |
Correct |
27 ms |
3272 KB |
Output is correct |
| 37 |
Correct |
36 ms |
5916 KB |
Output is correct |
| 38 |
Correct |
35 ms |
5960 KB |
Output is correct |
| 39 |
Correct |
33 ms |
5880 KB |
Output is correct |
| 40 |
Correct |
39 ms |
5908 KB |
Output is correct |
| 41 |
Correct |
56 ms |
5916 KB |
Output is correct |
| 42 |
Correct |
32 ms |
5928 KB |
Output is correct |
| 43 |
Correct |
46 ms |
8128 KB |
Output is correct |
| 44 |
Correct |
30 ms |
5916 KB |
Output is correct |
| 45 |
Correct |
29 ms |
5900 KB |
Output is correct |
| 46 |
Correct |
29 ms |
5916 KB |
Output is correct |
| 47 |
Correct |
43 ms |
5904 KB |
Output is correct |
| 48 |
Correct |
46 ms |
5920 KB |
Output is correct |
| 49 |
Correct |
34 ms |
5952 KB |
Output is correct |
| 50 |
Correct |
40 ms |
7248 KB |
Output is correct |
| 51 |
Correct |
46 ms |
8384 KB |
Output is correct |
| 52 |
Correct |
67 ms |
5904 KB |
Output is correct |
| 53 |
Correct |
71 ms |
5868 KB |
Output is correct |
| 54 |
Correct |
77 ms |
5940 KB |
Output is correct |
| 55 |
Correct |
57 ms |
12132 KB |
Output is correct |
| 56 |
Correct |
64 ms |
11544 KB |
Output is correct |
| 57 |
Correct |
50 ms |
5924 KB |
Output is correct |
| 58 |
Correct |
57 ms |
5932 KB |
Output is correct |
| 59 |
Correct |
64 ms |
6032 KB |
Output is correct |
| 60 |
Correct |
71 ms |
5980 KB |
Output is correct |
| 61 |
Correct |
74 ms |
5968 KB |
Output is correct |
| 62 |
Correct |
72 ms |
5960 KB |
Output is correct |
| 63 |
Correct |
69 ms |
5924 KB |
Output is correct |
| 64 |
Correct |
46 ms |
9028 KB |
Output is correct |
| 65 |
Correct |
42 ms |
8604 KB |
Output is correct |
| 66 |
Correct |
45 ms |
8256 KB |
Output is correct |
| 67 |
Correct |
46 ms |
8868 KB |
Output is correct |
| 68 |
Execution timed out |
4019 ms |
5964 KB |
Time limit exceeded |
| 69 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
4051 ms |
6156 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
