| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 52161 |
2018-06-24T11:19:07 Z |
김세빈(#1331) |
The Big Prize (IOI17_prize) |
C++11 |
|
74 ms |
5972 KB |
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
bool chk[202020];
bool r[202020];
vector <int> M[202020];
vector <int> myask(int idx)
{
if(chk[idx]) return M[idx];
chk[idx] = 1;
return M[idx] = ask(idx);
}
void find(int m, vector <int>& ret, int s, int e, int l, int r)
{
if(s > e || l > r) return;
int mid = (l+r) >> 1;
int i,j;
vector <int> res = myask(mid);
if(res[0] + res[1] == m){
find(m, ret, s, res[0] - 1, l, mid-1);
find(m, ret, res[0], e, mid+1, r);
}
else{
for(i=mid+1;i<=r;i++){
res = myask(i);
if(res[0] + res[1] == m) break;
}
if(i <= r){
for(j=mid;j<i;j++){
ret[res[0] - (i-j)] = j;
}
find(m, ret, s, res[0] - (i-mid) - 1, l, mid-1);
find(m, ret, res[0], e, i+1, r);
}
else{
for(i=mid-1;i>=l;i--){
res = myask(i);
if(res[0] + res[1] == m) break;
}
for(j=r;j>i;j--) ret[e - (r-j)] = j;
find(m, ret, s, e - (r-i), l, i-1);
}
}
}
int find_best(int n)
{
srand(time(0));
int i, j, x, k = min(n, 500);
int m = 0;
vector <int> res;
for(i=0;i<k;i++){
if(n > 10000){
for(;;){
j = rand() % n;
if(!r[j]) break;
}
r[j] = 1;
}
else j = i;
res = myask(j);
if(m < res[0] + res[1]){
m = res[0] + res[1];
x = j;
}
}
vector <int> ret(m);
res = myask(x);
find(m, ret, 0, res[0] - 1, 0, x-1);
find(m, ret, res[0], m-1, x+1, n-1);
for(auto t: ret){
res = myask(t);
if(res[0] + res[1] == 0) return t;
}
return -1;
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:84:6: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
find(m, ret, 0, res[0] - 1, 0, x-1);
~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
5368 KB |
Output is correct |
| 2 |
Correct |
8 ms |
5484 KB |
Output is correct |
| 3 |
Correct |
9 ms |
5484 KB |
Output is correct |
| 4 |
Correct |
11 ms |
5540 KB |
Output is correct |
| 5 |
Correct |
11 ms |
5580 KB |
Output is correct |
| 6 |
Correct |
13 ms |
5716 KB |
Output is correct |
| 7 |
Correct |
14 ms |
5716 KB |
Output is correct |
| 8 |
Correct |
10 ms |
5720 KB |
Output is correct |
| 9 |
Correct |
11 ms |
5720 KB |
Output is correct |
| 10 |
Correct |
13 ms |
5720 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
5720 KB |
Output is correct |
| 2 |
Correct |
11 ms |
5720 KB |
Output is correct |
| 3 |
Correct |
12 ms |
5720 KB |
Output is correct |
| 4 |
Correct |
10 ms |
5720 KB |
Output is correct |
| 5 |
Correct |
12 ms |
5720 KB |
Output is correct |
| 6 |
Correct |
11 ms |
5820 KB |
Output is correct |
| 7 |
Correct |
9 ms |
5820 KB |
Output is correct |
| 8 |
Correct |
10 ms |
5820 KB |
Output is correct |
| 9 |
Correct |
14 ms |
5820 KB |
Output is correct |
| 10 |
Correct |
13 ms |
5820 KB |
Output is correct |
| 11 |
Correct |
16 ms |
5820 KB |
Output is correct |
| 12 |
Correct |
14 ms |
5820 KB |
Output is correct |
| 13 |
Correct |
14 ms |
5820 KB |
Output is correct |
| 14 |
Correct |
18 ms |
5820 KB |
Output is correct |
| 15 |
Correct |
41 ms |
5820 KB |
Output is correct |
| 16 |
Correct |
67 ms |
5820 KB |
Output is correct |
| 17 |
Correct |
64 ms |
5820 KB |
Output is correct |
| 18 |
Correct |
49 ms |
5820 KB |
Output is correct |
| 19 |
Correct |
42 ms |
5972 KB |
Output is correct |
| 20 |
Correct |
27 ms |
5972 KB |
Output is correct |
| 21 |
Correct |
45 ms |
5972 KB |
Output is correct |
| 22 |
Correct |
37 ms |
5972 KB |
Output is correct |
| 23 |
Correct |
10 ms |
5972 KB |
Output is correct |
| 24 |
Correct |
15 ms |
5972 KB |
Output is correct |
| 25 |
Correct |
46 ms |
5972 KB |
Output is correct |
| 26 |
Correct |
57 ms |
5972 KB |
Output is correct |
| 27 |
Correct |
14 ms |
5972 KB |
Output is correct |
| 28 |
Correct |
54 ms |
5972 KB |
Output is correct |
| 29 |
Correct |
40 ms |
5972 KB |
Output is correct |
| 30 |
Correct |
45 ms |
5972 KB |
Output is correct |
| 31 |
Correct |
48 ms |
5972 KB |
Output is correct |
| 32 |
Correct |
17 ms |
5972 KB |
Output is correct |
| 33 |
Correct |
7 ms |
5972 KB |
Output is correct |
| 34 |
Correct |
51 ms |
5972 KB |
Output is correct |
| 35 |
Correct |
9 ms |
5972 KB |
Output is correct |
| 36 |
Correct |
46 ms |
5972 KB |
Output is correct |
| 37 |
Correct |
18 ms |
5972 KB |
Output is correct |
| 38 |
Correct |
10 ms |
5972 KB |
Output is correct |
| 39 |
Correct |
49 ms |
5972 KB |
Output is correct |
| 40 |
Correct |
33 ms |
5972 KB |
Output is correct |
| 41 |
Correct |
25 ms |
5972 KB |
Output is correct |
| 42 |
Correct |
47 ms |
5972 KB |
Output is correct |
| 43 |
Correct |
61 ms |
5972 KB |
Output is correct |
| 44 |
Correct |
66 ms |
5972 KB |
Output is correct |
| 45 |
Correct |
45 ms |
5972 KB |
Output is correct |
| 46 |
Correct |
52 ms |
5972 KB |
Output is correct |
| 47 |
Correct |
37 ms |
5972 KB |
Output is correct |
| 48 |
Correct |
53 ms |
5972 KB |
Output is correct |
| 49 |
Correct |
56 ms |
5972 KB |
Output is correct |
| 50 |
Correct |
53 ms |
5972 KB |
Output is correct |
| 51 |
Correct |
59 ms |
5972 KB |
Output is correct |
| 52 |
Correct |
61 ms |
5972 KB |
Output is correct |
| 53 |
Correct |
10 ms |
5972 KB |
Output is correct |
| 54 |
Correct |
56 ms |
5972 KB |
Output is correct |
| 55 |
Correct |
54 ms |
5972 KB |
Output is correct |
| 56 |
Correct |
40 ms |
5972 KB |
Output is correct |
| 57 |
Correct |
74 ms |
5972 KB |
Output is correct |
| 58 |
Correct |
52 ms |
5972 KB |
Output is correct |
| 59 |
Correct |
42 ms |
5972 KB |
Output is correct |
| 60 |
Correct |
36 ms |
5972 KB |
Output is correct |
| 61 |
Correct |
11 ms |
5972 KB |
Output is correct |
| 62 |
Correct |
10 ms |
5972 KB |
Output is correct |
| 63 |
Correct |
11 ms |
5972 KB |
Output is correct |
| 64 |
Correct |
10 ms |
5972 KB |
Output is correct |
| 65 |
Correct |
10 ms |
5972 KB |
Output is correct |
| 66 |
Correct |
20 ms |
5972 KB |
Output is correct |
| 67 |
Correct |
16 ms |
5972 KB |
Output is correct |
| 68 |
Correct |
16 ms |
5972 KB |
Output is correct |
| 69 |
Correct |
10 ms |
5972 KB |
Output is correct |
| 70 |
Correct |
13 ms |
5972 KB |
Output is correct |
| 71 |
Partially correct |
52 ms |
5972 KB |
Partially correct - number of queries: 5371 |
| 72 |
Correct |
16 ms |
5972 KB |
Output is correct |
| 73 |
Partially correct |
49 ms |
5972 KB |
Partially correct - number of queries: 5172 |
| 74 |
Partially correct |
49 ms |
5972 KB |
Partially correct - number of queries: 5198 |
| 75 |
Correct |
14 ms |
5972 KB |
Output is correct |
| 76 |
Correct |
56 ms |
5972 KB |
Output is correct |
| 77 |
Partially correct |
46 ms |
5972 KB |
Partially correct - number of queries: 5042 |
| 78 |
Correct |
13 ms |
5972 KB |
Output is correct |
| 79 |
Correct |
29 ms |
5972 KB |
Output is correct |
| 80 |
Correct |
49 ms |
5972 KB |
Output is correct |
| 81 |
Correct |
36 ms |
5972 KB |
Output is correct |
| 82 |
Correct |
45 ms |
5972 KB |
Output is correct |
| 83 |
Correct |
13 ms |
5972 KB |
Output is correct |
| 84 |
Correct |
43 ms |
5972 KB |
Output is correct |
| 85 |
Partially correct |
47 ms |
5972 KB |
Partially correct - number of queries: 5004 |
| 86 |
Correct |
45 ms |
5972 KB |
Output is correct |
| 87 |
Correct |
12 ms |
5972 KB |
Output is correct |
| 88 |
Correct |
41 ms |
5972 KB |
Output is correct |
| 89 |
Correct |
34 ms |
5972 KB |
Output is correct |
| 90 |
Correct |
10 ms |
5972 KB |
Output is correct |
| 91 |
Correct |
23 ms |
5972 KB |
Output is correct |
| 92 |
Correct |
20 ms |
5972 KB |
Output is correct |
| 93 |
Correct |
30 ms |
5972 KB |
Output is correct |
| 94 |
Correct |
51 ms |
5972 KB |
Output is correct |
| 95 |
Correct |
41 ms |
5972 KB |
Output is correct |
| 96 |
Correct |
49 ms |
5972 KB |
Output is correct |
| 97 |
Correct |
29 ms |
5972 KB |
Output is correct |
