| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1063515 |
2024-08-17T19:44:55 Z |
fv3 |
The Big Prize (IOI17_prize) |
C++14 |
|
38 ms |
3928 KB |
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> st;
int nt = 1;
int get_range(int l, int r, int k, int x, int y)
{
if (x > r || y < l) return 0;
if (x >= l && y <= r) return st[k];
int c = (x + y) / 2;
return get_range(l, r, k*2, x, c) + get_range(l, r, k*2|1, c+1, y);
}
void add(int index)
{
st[nt + index] = 1;
for (int i = (nt + index) / 2; i >= 1; i /= 2)
st[i] = st[i*2] + st[i*2|1];
}
vector<int> parent;
int find(int index)
{
if (!parent[index]) return index;
return parent[index] = find(parent[index]);
}
int find_best(int n)
{
parent = vector<int>(n);
while (nt < n) nt <<= 1;
st = vector<int>(2 * nt);
map<int, int> m;
m[n] = 2 * n;
int mx_cnt = 1;
int left_most = 0;
while (1)
{
int r = n - 1;
for (auto node : m)
{
if (node.second == -1 || node.first < left_most) continue;
if (node.second - get_range(0, node.first, 1, 0, nt - 1) > 0)
{
r = node.first - 1;
break;
}
left_most = node.first + 1;
}
int l = left_most;
// Find better left and right bounds
while (1)
{
int c = (l + r) / 2;
int index = find(c);
if (index == n)
{
r = c - 1;
continue;
}
auto val = ask(index);
int cnt = val[0] + val[1];
if (cnt == 0)
return index;
if (cnt > mx_cnt)
{
mx_cnt = cnt;
for (auto&node : m)
{
if (node.second == -1 || node.first == n) continue;
add(node.first);
node.second = -1;
}
left_most = 0;
m[index] = val[0];
break;
}
if (cnt < mx_cnt)
{
parent[index] = index + 1;
add(index);
break;
}
if (val[0] == get_range(0, index, 1, 0, nt-1))
l = c + 1;
else
r = c - 1;
m[index] = val[0];
}
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 2 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 3 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 4 |
Correct |
1 ms |
3244 KB |
Output is correct |
| 5 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 6 |
Correct |
1 ms |
3244 KB |
Output is correct |
| 7 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 8 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 9 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 10 |
Correct |
1 ms |
3160 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 2 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 3 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 4 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 5 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 6 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 7 |
Correct |
1 ms |
3240 KB |
Output is correct |
| 8 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 9 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 10 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 11 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 12 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 13 |
Correct |
4 ms |
3160 KB |
Output is correct |
| 14 |
Correct |
1 ms |
600 KB |
Output is correct |
| 15 |
Correct |
4 ms |
3160 KB |
Output is correct |
| 16 |
Correct |
21 ms |
3396 KB |
Output is correct |
| 17 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 18 |
Correct |
32 ms |
3564 KB |
Output is correct |
| 19 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 20 |
Correct |
5 ms |
1880 KB |
Output is correct |
| 21 |
Correct |
7 ms |
3160 KB |
Output is correct |
| 22 |
Correct |
4 ms |
3160 KB |
Output is correct |
| 23 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 24 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 25 |
Correct |
11 ms |
3160 KB |
Output is correct |
| 26 |
Correct |
13 ms |
3572 KB |
Output is correct |
| 27 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 28 |
Correct |
20 ms |
3160 KB |
Output is correct |
| 29 |
Correct |
16 ms |
3408 KB |
Output is correct |
| 30 |
Correct |
27 ms |
3416 KB |
Output is correct |
| 31 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 32 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 33 |
Correct |
0 ms |
344 KB |
Output is correct |
| 34 |
Correct |
8 ms |
3504 KB |
Output is correct |
| 35 |
Correct |
3 ms |
3160 KB |
Output is correct |
| 36 |
Correct |
4 ms |
3160 KB |
Output is correct |
| 37 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 38 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 39 |
Correct |
9 ms |
3160 KB |
Output is correct |
| 40 |
Correct |
24 ms |
3408 KB |
Output is correct |
| 41 |
Correct |
13 ms |
3356 KB |
Output is correct |
| 42 |
Correct |
15 ms |
3556 KB |
Output is correct |
| 43 |
Correct |
15 ms |
3364 KB |
Output is correct |
| 44 |
Correct |
9 ms |
3416 KB |
Output is correct |
| 45 |
Correct |
6 ms |
3160 KB |
Output is correct |
| 46 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 47 |
Correct |
9 ms |
3160 KB |
Output is correct |
| 48 |
Correct |
18 ms |
3160 KB |
Output is correct |
| 49 |
Correct |
3 ms |
3160 KB |
Output is correct |
| 50 |
Correct |
21 ms |
3408 KB |
Output is correct |
| 51 |
Correct |
8 ms |
3160 KB |
Output is correct |
| 52 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 53 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 54 |
Correct |
13 ms |
3344 KB |
Output is correct |
| 55 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 56 |
Correct |
30 ms |
3452 KB |
Output is correct |
| 57 |
Correct |
24 ms |
3392 KB |
Output is correct |
| 58 |
Correct |
13 ms |
3160 KB |
Output is correct |
| 59 |
Correct |
22 ms |
3588 KB |
Output is correct |
| 60 |
Correct |
13 ms |
3160 KB |
Output is correct |
| 61 |
Correct |
2 ms |
3416 KB |
Output is correct |
| 62 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 63 |
Correct |
3 ms |
3160 KB |
Output is correct |
| 64 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 65 |
Correct |
1 ms |
3248 KB |
Output is correct |
| 66 |
Correct |
3 ms |
3160 KB |
Output is correct |
| 67 |
Correct |
3 ms |
3288 KB |
Output is correct |
| 68 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 69 |
Correct |
4 ms |
3160 KB |
Output is correct |
| 70 |
Correct |
3 ms |
3160 KB |
Output is correct |
| 71 |
Correct |
29 ms |
3388 KB |
Output is correct |
| 72 |
Correct |
4 ms |
3296 KB |
Output is correct |
| 73 |
Correct |
38 ms |
3920 KB |
Output is correct |
| 74 |
Correct |
26 ms |
3652 KB |
Output is correct |
| 75 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 76 |
Correct |
23 ms |
3668 KB |
Output is correct |
| 77 |
Correct |
20 ms |
3408 KB |
Output is correct |
| 78 |
Correct |
3 ms |
3160 KB |
Output is correct |
| 79 |
Correct |
13 ms |
3160 KB |
Output is correct |
| 80 |
Correct |
29 ms |
3332 KB |
Output is correct |
| 81 |
Correct |
26 ms |
3416 KB |
Output is correct |
| 82 |
Correct |
33 ms |
3928 KB |
Output is correct |
| 83 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 84 |
Correct |
16 ms |
3408 KB |
Output is correct |
| 85 |
Correct |
25 ms |
3396 KB |
Output is correct |
| 86 |
Correct |
5 ms |
3420 KB |
Output is correct |
| 87 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 88 |
Correct |
4 ms |
3160 KB |
Output is correct |
| 89 |
Correct |
4 ms |
3160 KB |
Output is correct |
| 90 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 91 |
Correct |
3 ms |
3160 KB |
Output is correct |
| 92 |
Correct |
3 ms |
3160 KB |
Output is correct |
| 93 |
Correct |
3 ms |
3160 KB |
Output is correct |
| 94 |
Correct |
3 ms |
3156 KB |
Output is correct |
| 95 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 96 |
Correct |
2 ms |
3160 KB |
Output is correct |
| 97 |
Correct |
1 ms |
3160 KB |
Output is correct |
