#include <bits/stdc++.h>
using namespace std;
#define intt long long
#define forr(i , x , y) for(int i = x ;i <= y;i++)
#define pb push_back
#define fore(i , n) for(int i = 0 ; i <n;i++)
/**
* skims through the i-th book and returns its difficulty x_i (1 <= i <= N).
*/
long long skim(int);
/**
* buys your selection of books. This function has to be called with
* v = {i_1, ..., i_K} (1 <= i_1, ..., i_K <= N) where the i_j's are pairwise
* distinct and satisfy A <= x_{i_1} + ... + x_{i_K} <= 2 A.
*/
void answer(std::vector<int>);
/**
* states that it is impossible to buy a set of K books with the desired difficulty.
*/
void impossible();
intt get(int i , vector<intt> &x)
{
if(x[i] == -1)
return x[i] = skim(i);
return x[i];
}
void solve(int n, int k, long long a, int s)
{
vector<intt> x(n + 1 , -1);
vector<intt> pref(n + 1);
vector<int> ans;
forr(i , 1 , k - 1)
{
pref[i] = pref[i - 1] + get(i , x);
}
if(pref[k - 1] + get(k , x) > 2ll * a)
{
impossible();
}
int l = 0 , r = n;
while(l + 1 < r)
{
int mid = (l + r)/2;
if(get(mid , x) >= a)
{
r = mid;
}
else
l = mid;
}
if(get(r , x) >= a && r >= k && get(r , x) + pref[k - 1] <= 2ll*a)
{
forr(i , 1, k - 1)
ans.pb(i);
ans.pb(r);
answer(ans);
return ;
}
int lo = k, hi = r;
while(lo + 1 < hi)
{
int mid = (lo + hi)/2;
intt sm= 0;
forr(i , mid - k + 1 , mid)
sm+=get(i , x);
if(a <= sm && sm <= 2ll * a)
{
forr(i , mid - k + 1 , mid)
ans.pb(i);
answer(ans);
return;
}
if(sm > 2ll * a)
{
hi = mid;
}
if(sm < a)
lo = mid;
}
intt sm = 0;
forr(i , lo - k +1 , lo)
{
sm+=get(i , x);
}
if(a <= sm && sm <= 2ll * a)
{
forr(i , lo - k +1 , lo)
ans.pb(i);
answer(ans);
return ;
}
sm = 0;
forr(i , hi - k +1 , hi)
{
sm+=get(i , x);
}
if(a <= sm && sm <= 2ll * a)
{
forr(i , hi - k +1 , hi)
ans.pb(i);
answer(ans);
return ;
}
impossible();
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
600 KB |
Output is correct |
10 |
Correct |
1 ms |
816 KB |
Output is correct |
11 |
Correct |
1 ms |
600 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
600 KB |
Output is correct |
14 |
Correct |
0 ms |
600 KB |
Output is correct |
15 |
Correct |
1 ms |
600 KB |
Output is correct |
16 |
Correct |
1 ms |
600 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1880 KB |
Output is correct |
2 |
Correct |
1 ms |
1880 KB |
Output is correct |
3 |
Correct |
1 ms |
1880 KB |
Output is correct |
4 |
Correct |
2 ms |
1880 KB |
Output is correct |
5 |
Correct |
1 ms |
1880 KB |
Output is correct |
6 |
Correct |
1 ms |
1880 KB |
Output is correct |
7 |
Correct |
1 ms |
1880 KB |
Output is correct |
8 |
Correct |
1 ms |
1880 KB |
Output is correct |
9 |
Correct |
2 ms |
1880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1880 KB |
Output is correct |
2 |
Correct |
1 ms |
1880 KB |
Output is correct |
3 |
Correct |
1 ms |
1880 KB |
Output is correct |
4 |
Correct |
2 ms |
1880 KB |
Output is correct |
5 |
Correct |
1 ms |
1880 KB |
Output is correct |
6 |
Correct |
1 ms |
1880 KB |
Output is correct |
7 |
Correct |
1 ms |
1880 KB |
Output is correct |
8 |
Correct |
1 ms |
1880 KB |
Output is correct |
9 |
Correct |
2 ms |
1880 KB |
Output is correct |
10 |
Correct |
1 ms |
1880 KB |
Output is correct |
11 |
Correct |
1 ms |
1880 KB |
Output is correct |
12 |
Correct |
1 ms |
1880 KB |
Output is correct |
13 |
Correct |
1 ms |
1880 KB |
Output is correct |
14 |
Correct |
1 ms |
1880 KB |
Output is correct |
15 |
Correct |
1 ms |
1880 KB |
Output is correct |
16 |
Correct |
1 ms |
1880 KB |
Output is correct |
17 |
Correct |
2 ms |
1880 KB |
Output is correct |
18 |
Correct |
2 ms |
1784 KB |
Output is correct |
19 |
Correct |
1 ms |
1880 KB |
Output is correct |
20 |
Correct |
1 ms |
1880 KB |
Output is correct |
21 |
Correct |
1 ms |
1880 KB |
Output is correct |
22 |
Correct |
1 ms |
1880 KB |
Output is correct |
23 |
Correct |
1 ms |
1880 KB |
Output is correct |
24 |
Correct |
1 ms |
1880 KB |
Output is correct |
25 |
Correct |
1 ms |
1880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1880 KB |
Output is correct |
2 |
Correct |
1 ms |
1880 KB |
Output is correct |
3 |
Correct |
1 ms |
1880 KB |
Output is correct |
4 |
Correct |
2 ms |
1880 KB |
Output is correct |
5 |
Correct |
1 ms |
1880 KB |
Output is correct |
6 |
Correct |
1 ms |
1880 KB |
Output is correct |
7 |
Correct |
1 ms |
1880 KB |
Output is correct |
8 |
Correct |
1 ms |
1880 KB |
Output is correct |
9 |
Correct |
2 ms |
1880 KB |
Output is correct |
10 |
Correct |
1 ms |
1880 KB |
Output is correct |
11 |
Correct |
1 ms |
1880 KB |
Output is correct |
12 |
Correct |
1 ms |
1880 KB |
Output is correct |
13 |
Correct |
1 ms |
1880 KB |
Output is correct |
14 |
Correct |
1 ms |
1880 KB |
Output is correct |
15 |
Correct |
1 ms |
1880 KB |
Output is correct |
16 |
Correct |
1 ms |
1880 KB |
Output is correct |
17 |
Correct |
2 ms |
1880 KB |
Output is correct |
18 |
Correct |
2 ms |
1784 KB |
Output is correct |
19 |
Correct |
1 ms |
1880 KB |
Output is correct |
20 |
Correct |
1 ms |
1880 KB |
Output is correct |
21 |
Correct |
1 ms |
1880 KB |
Output is correct |
22 |
Correct |
1 ms |
1880 KB |
Output is correct |
23 |
Correct |
1 ms |
1880 KB |
Output is correct |
24 |
Correct |
1 ms |
1880 KB |
Output is correct |
25 |
Correct |
1 ms |
1880 KB |
Output is correct |
26 |
Correct |
1 ms |
1880 KB |
Output is correct |
27 |
Correct |
1 ms |
1880 KB |
Output is correct |
28 |
Correct |
1 ms |
1880 KB |
Output is correct |
29 |
Correct |
1 ms |
1964 KB |
Output is correct |
30 |
Correct |
1 ms |
1880 KB |
Output is correct |
31 |
Correct |
1 ms |
1968 KB |
Output is correct |
32 |
Correct |
1 ms |
1964 KB |
Output is correct |
33 |
Correct |
1 ms |
1880 KB |
Output is correct |
34 |
Correct |
2 ms |
1880 KB |
Output is correct |
35 |
Correct |
1 ms |
1880 KB |
Output is correct |
36 |
Correct |
1 ms |
1880 KB |
Output is correct |
37 |
Correct |
1 ms |
1880 KB |
Output is correct |
38 |
Correct |
1 ms |
1880 KB |
Output is correct |
39 |
Correct |
1 ms |
1880 KB |
Output is correct |
40 |
Correct |
1 ms |
1880 KB |
Output is correct |
41 |
Correct |
1 ms |
1880 KB |
Output is correct |
42 |
Correct |
1 ms |
1880 KB |
Output is correct |
43 |
Correct |
1 ms |
1880 KB |
Output is correct |
44 |
Correct |
1 ms |
1880 KB |
Output is correct |
45 |
Correct |
1 ms |
1880 KB |
Output is correct |
46 |
Correct |
1 ms |
1880 KB |
Output is correct |
47 |
Correct |
1 ms |
1880 KB |
Output is correct |
48 |
Correct |
1 ms |
1880 KB |
Output is correct |
49 |
Correct |
1 ms |
1880 KB |
Output is correct |
50 |
Correct |
1 ms |
1880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1880 KB |
Output is correct |
2 |
Correct |
1 ms |
1880 KB |
Output is correct |
3 |
Correct |
1 ms |
1880 KB |
Output is correct |
4 |
Correct |
2 ms |
1880 KB |
Output is correct |
5 |
Correct |
1 ms |
1880 KB |
Output is correct |
6 |
Correct |
1 ms |
1880 KB |
Output is correct |
7 |
Correct |
1 ms |
1880 KB |
Output is correct |
8 |
Correct |
1 ms |
1880 KB |
Output is correct |
9 |
Correct |
2 ms |
1880 KB |
Output is correct |
10 |
Correct |
1 ms |
1880 KB |
Output is correct |
11 |
Correct |
1 ms |
1880 KB |
Output is correct |
12 |
Correct |
1 ms |
1880 KB |
Output is correct |
13 |
Correct |
1 ms |
1880 KB |
Output is correct |
14 |
Correct |
1 ms |
1880 KB |
Output is correct |
15 |
Correct |
1 ms |
1880 KB |
Output is correct |
16 |
Correct |
1 ms |
1880 KB |
Output is correct |
17 |
Correct |
2 ms |
1880 KB |
Output is correct |
18 |
Correct |
2 ms |
1784 KB |
Output is correct |
19 |
Correct |
1 ms |
1880 KB |
Output is correct |
20 |
Correct |
1 ms |
1880 KB |
Output is correct |
21 |
Correct |
1 ms |
1880 KB |
Output is correct |
22 |
Correct |
1 ms |
1880 KB |
Output is correct |
23 |
Correct |
1 ms |
1880 KB |
Output is correct |
24 |
Correct |
1 ms |
1880 KB |
Output is correct |
25 |
Correct |
1 ms |
1880 KB |
Output is correct |
26 |
Correct |
1 ms |
1880 KB |
Output is correct |
27 |
Correct |
1 ms |
1880 KB |
Output is correct |
28 |
Correct |
1 ms |
1880 KB |
Output is correct |
29 |
Correct |
1 ms |
1880 KB |
Output is correct |
30 |
Correct |
1 ms |
1880 KB |
Output is correct |
31 |
Correct |
1 ms |
1880 KB |
Output is correct |
32 |
Correct |
2 ms |
1880 KB |
Output is correct |
33 |
Correct |
2 ms |
1880 KB |
Output is correct |
34 |
Correct |
1 ms |
1964 KB |
Output is correct |
35 |
Correct |
1 ms |
1880 KB |
Output is correct |
36 |
Correct |
1 ms |
1880 KB |
Output is correct |
37 |
Correct |
1 ms |
1880 KB |
Output is correct |
38 |
Correct |
1 ms |
1960 KB |
Output is correct |
39 |
Correct |
1 ms |
1880 KB |
Output is correct |
40 |
Correct |
1 ms |
1880 KB |
Output is correct |
41 |
Correct |
1 ms |
1880 KB |
Output is correct |
42 |
Correct |
1 ms |
1812 KB |
Output is correct |
43 |
Correct |
1 ms |
1880 KB |
Output is correct |
44 |
Correct |
1 ms |
1964 KB |
Output is correct |
45 |
Correct |
1 ms |
1880 KB |
Output is correct |
46 |
Runtime error |
1 ms |
2016 KB |
Execution killed with signal 13 |
47 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1880 KB |
Output is correct |
2 |
Correct |
1 ms |
1880 KB |
Output is correct |
3 |
Correct |
1 ms |
1880 KB |
Output is correct |
4 |
Correct |
2 ms |
1880 KB |
Output is correct |
5 |
Correct |
1 ms |
1880 KB |
Output is correct |
6 |
Correct |
1 ms |
1880 KB |
Output is correct |
7 |
Correct |
1 ms |
1880 KB |
Output is correct |
8 |
Correct |
1 ms |
1880 KB |
Output is correct |
9 |
Correct |
2 ms |
1880 KB |
Output is correct |
10 |
Correct |
1 ms |
1880 KB |
Output is correct |
11 |
Correct |
1 ms |
1880 KB |
Output is correct |
12 |
Correct |
1 ms |
1880 KB |
Output is correct |
13 |
Correct |
1 ms |
1880 KB |
Output is correct |
14 |
Correct |
1 ms |
1880 KB |
Output is correct |
15 |
Correct |
1 ms |
1880 KB |
Output is correct |
16 |
Correct |
1 ms |
1880 KB |
Output is correct |
17 |
Correct |
2 ms |
1880 KB |
Output is correct |
18 |
Correct |
2 ms |
1784 KB |
Output is correct |
19 |
Correct |
1 ms |
1880 KB |
Output is correct |
20 |
Correct |
1 ms |
1880 KB |
Output is correct |
21 |
Correct |
1 ms |
1880 KB |
Output is correct |
22 |
Correct |
1 ms |
1880 KB |
Output is correct |
23 |
Correct |
1 ms |
1880 KB |
Output is correct |
24 |
Correct |
1 ms |
1880 KB |
Output is correct |
25 |
Correct |
1 ms |
1880 KB |
Output is correct |
26 |
Correct |
1 ms |
1880 KB |
Output is correct |
27 |
Correct |
1 ms |
1880 KB |
Output is correct |
28 |
Correct |
1 ms |
1880 KB |
Output is correct |
29 |
Correct |
1 ms |
1964 KB |
Output is correct |
30 |
Correct |
1 ms |
1880 KB |
Output is correct |
31 |
Correct |
1 ms |
1968 KB |
Output is correct |
32 |
Correct |
1 ms |
1964 KB |
Output is correct |
33 |
Correct |
1 ms |
1880 KB |
Output is correct |
34 |
Correct |
2 ms |
1880 KB |
Output is correct |
35 |
Correct |
1 ms |
1880 KB |
Output is correct |
36 |
Correct |
1 ms |
1880 KB |
Output is correct |
37 |
Correct |
1 ms |
1880 KB |
Output is correct |
38 |
Correct |
1 ms |
1880 KB |
Output is correct |
39 |
Correct |
1 ms |
1880 KB |
Output is correct |
40 |
Correct |
1 ms |
1880 KB |
Output is correct |
41 |
Correct |
1 ms |
1880 KB |
Output is correct |
42 |
Correct |
1 ms |
1880 KB |
Output is correct |
43 |
Correct |
1 ms |
1880 KB |
Output is correct |
44 |
Correct |
1 ms |
1880 KB |
Output is correct |
45 |
Correct |
1 ms |
1880 KB |
Output is correct |
46 |
Correct |
1 ms |
1880 KB |
Output is correct |
47 |
Correct |
1 ms |
1880 KB |
Output is correct |
48 |
Correct |
1 ms |
1880 KB |
Output is correct |
49 |
Correct |
1 ms |
1880 KB |
Output is correct |
50 |
Correct |
1 ms |
1880 KB |
Output is correct |
51 |
Correct |
1 ms |
1880 KB |
Output is correct |
52 |
Correct |
1 ms |
1880 KB |
Output is correct |
53 |
Correct |
1 ms |
1880 KB |
Output is correct |
54 |
Correct |
1 ms |
1880 KB |
Output is correct |
55 |
Correct |
1 ms |
1880 KB |
Output is correct |
56 |
Correct |
1 ms |
1880 KB |
Output is correct |
57 |
Correct |
2 ms |
1880 KB |
Output is correct |
58 |
Correct |
2 ms |
1880 KB |
Output is correct |
59 |
Correct |
1 ms |
1964 KB |
Output is correct |
60 |
Correct |
1 ms |
1880 KB |
Output is correct |
61 |
Correct |
1 ms |
1880 KB |
Output is correct |
62 |
Correct |
1 ms |
1880 KB |
Output is correct |
63 |
Correct |
1 ms |
1960 KB |
Output is correct |
64 |
Correct |
1 ms |
1880 KB |
Output is correct |
65 |
Correct |
1 ms |
1880 KB |
Output is correct |
66 |
Correct |
1 ms |
1880 KB |
Output is correct |
67 |
Correct |
1 ms |
1812 KB |
Output is correct |
68 |
Correct |
1 ms |
1880 KB |
Output is correct |
69 |
Correct |
1 ms |
1964 KB |
Output is correct |
70 |
Correct |
1 ms |
1880 KB |
Output is correct |
71 |
Runtime error |
1 ms |
2016 KB |
Execution killed with signal 13 |
72 |
Halted |
0 ms |
0 KB |
- |