#include "prize.h"
#include "iostream"
using namespace std;
const int sz = 2e5 + 10;
vector<int> bf[sz];
int ft[sz];
int N;
void inc(int v) {
for (; v <= N; v += v & -v)
ft[v] ++;
}
int sum(int le, int ri) {
le --;
int ql = 0;
for (; 0 < le; le -= le & -le)
ql += ft[le];
int qr = 0;
for (; 0 < ri; ri -= ri & -ri)
qr += ft[ri];
return qr - ql;
}
vector<int> Ask(int x) {
if (bf[x].size()) return bf[x];
return bf[x] = ask(x);
}
int find_best(int n) {
int mx = 0, xx = 600;
for (int i = 0; i < min(n, 600); i ++) {
auto pr = Ask(i);
mx = max(mx, pr[0] + pr[1]);
if (0 == pr[0] + pr[1]) return i;
if (30 < mx) {
xx = i + 1;
break;
}
inc(i + 1);
}
int ls = xx;
while (ls < n) {
int ps;
for (; ls < n; ls ++) {
auto pr = Ask(ls);
int sm = pr[0] + pr[1];
if (0 == sm) return ls;
if (sm == mx) {
ps = pr[1];
break;
}
inc(ls + 1);
}
int ds = xx;
int rs = n;
while (1 < rs - ds) {
int mi = (ds + rs) / 2;
if (mi <= ls) {
ds = mi;
continue;
}
if (sum(ls + 1, mi + 1)) {
rs = mi;
continue;
}
auto pr = Ask(mi);
int sm = pr[0] + pr[1];
if (0 == sm) return mi;
if (sm != mx) {
inc(mi + 1);
rs = mi;
}
if (0 == ps - pr[1]) ds = mi;
else rs = mi;
}
ls = ds + 1;
}
return 0;
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:77:13: warning: 'ps' may be used uninitialized in this function [-Wmaybe-uninitialized]
77 | if (0 == ps - pr[1]) ds = mi;
| ^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
4952 KB |
Output is correct |
| 2 |
Correct |
6 ms |
4952 KB |
Output is correct |
| 3 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 4 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 5 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 6 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 7 |
Correct |
6 ms |
4952 KB |
Output is correct |
| 8 |
Correct |
6 ms |
4952 KB |
Output is correct |
| 9 |
Correct |
4 ms |
4952 KB |
Output is correct |
| 10 |
Correct |
6 ms |
5144 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
4952 KB |
Output is correct |
| 2 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 3 |
Correct |
4 ms |
5140 KB |
Output is correct |
| 4 |
Correct |
4 ms |
4952 KB |
Output is correct |
| 5 |
Correct |
6 ms |
4952 KB |
Output is correct |
| 6 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 7 |
Correct |
6 ms |
5208 KB |
Output is correct |
| 8 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 9 |
Correct |
6 ms |
4952 KB |
Output is correct |
| 10 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 12 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 13 |
Correct |
5 ms |
5136 KB |
Output is correct |
| 14 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 15 |
Correct |
7 ms |
5208 KB |
Output is correct |
| 16 |
Correct |
23 ms |
5468 KB |
Output is correct |
| 17 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 18 |
Correct |
25 ms |
5208 KB |
Output is correct |
| 19 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 20 |
Correct |
7 ms |
4952 KB |
Output is correct |
| 21 |
Correct |
10 ms |
5376 KB |
Output is correct |
| 22 |
Correct |
4 ms |
4952 KB |
Output is correct |
| 23 |
Correct |
7 ms |
4952 KB |
Output is correct |
| 24 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 25 |
Correct |
16 ms |
5208 KB |
Output is correct |
| 26 |
Correct |
10 ms |
5200 KB |
Output is correct |
| 27 |
Correct |
6 ms |
5204 KB |
Output is correct |
| 28 |
Correct |
21 ms |
5228 KB |
Output is correct |
| 29 |
Correct |
18 ms |
5204 KB |
Output is correct |
| 30 |
Correct |
27 ms |
5500 KB |
Output is correct |
| 31 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 32 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 33 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 34 |
Correct |
9 ms |
4952 KB |
Output is correct |
| 35 |
Correct |
6 ms |
5208 KB |
Output is correct |
| 36 |
Correct |
7 ms |
5160 KB |
Output is correct |
| 37 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 38 |
Correct |
5 ms |
5392 KB |
Output is correct |
| 39 |
Correct |
13 ms |
4952 KB |
Output is correct |
| 40 |
Correct |
29 ms |
5216 KB |
Output is correct |
| 41 |
Correct |
14 ms |
5208 KB |
Output is correct |
| 42 |
Correct |
15 ms |
5196 KB |
Output is correct |
| 43 |
Correct |
14 ms |
5208 KB |
Output is correct |
| 44 |
Correct |
14 ms |
5180 KB |
Output is correct |
| 45 |
Correct |
9 ms |
4952 KB |
Output is correct |
| 46 |
Correct |
3 ms |
5128 KB |
Output is correct |
| 47 |
Correct |
18 ms |
5376 KB |
Output is correct |
| 48 |
Correct |
20 ms |
5208 KB |
Output is correct |
| 49 |
Correct |
5 ms |
5208 KB |
Output is correct |
| 50 |
Correct |
33 ms |
5208 KB |
Output is correct |
| 51 |
Correct |
17 ms |
5176 KB |
Output is correct |
| 52 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 53 |
Correct |
7 ms |
5208 KB |
Output is correct |
| 54 |
Correct |
12 ms |
5168 KB |
Output is correct |
| 55 |
Correct |
2 ms |
5132 KB |
Output is correct |
| 56 |
Correct |
21 ms |
5456 KB |
Output is correct |
| 57 |
Correct |
20 ms |
5208 KB |
Output is correct |
| 58 |
Correct |
16 ms |
5220 KB |
Output is correct |
| 59 |
Correct |
18 ms |
5380 KB |
Output is correct |
| 60 |
Correct |
14 ms |
4952 KB |
Output is correct |
| 61 |
Correct |
7 ms |
5208 KB |
Output is correct |
| 62 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 63 |
Correct |
5 ms |
5208 KB |
Output is correct |
| 64 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 65 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 66 |
Correct |
4 ms |
4952 KB |
Output is correct |
| 67 |
Correct |
3 ms |
5132 KB |
Output is correct |
| 68 |
Correct |
6 ms |
5464 KB |
Output is correct |
| 69 |
Correct |
4 ms |
4952 KB |
Output is correct |
| 70 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 71 |
Correct |
47 ms |
5208 KB |
Output is correct |
| 72 |
Correct |
6 ms |
4952 KB |
Output is correct |
| 73 |
Correct |
27 ms |
5228 KB |
Output is correct |
| 74 |
Correct |
37 ms |
5232 KB |
Output is correct |
| 75 |
Correct |
5 ms |
5160 KB |
Output is correct |
| 76 |
Correct |
23 ms |
5452 KB |
Output is correct |
| 77 |
Partially correct |
26 ms |
5412 KB |
Partially correct - number of queries: 5004 |
| 78 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 79 |
Correct |
13 ms |
4952 KB |
Output is correct |
| 80 |
Correct |
33 ms |
5440 KB |
Output is correct |
| 81 |
Partially correct |
34 ms |
5528 KB |
Partially correct - number of queries: 5028 |
| 82 |
Correct |
33 ms |
5200 KB |
Output is correct |
| 83 |
Correct |
7 ms |
5140 KB |
Output is correct |
| 84 |
Correct |
22 ms |
5436 KB |
Output is correct |
| 85 |
Correct |
20 ms |
5208 KB |
Output is correct |
| 86 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 87 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 88 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 89 |
Correct |
6 ms |
4952 KB |
Output is correct |
| 90 |
Correct |
4 ms |
4956 KB |
Output is correct |
| 91 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 92 |
Correct |
4 ms |
4952 KB |
Output is correct |
| 93 |
Correct |
6 ms |
4952 KB |
Output is correct |
| 94 |
Correct |
8 ms |
4952 KB |
Output is correct |
| 95 |
Correct |
6 ms |
4952 KB |
Output is correct |
| 96 |
Correct |
5 ms |
4952 KB |
Output is correct |
| 97 |
Correct |
5 ms |
4948 KB |
Output is correct |
