#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int>vi;
#define pb push_back
#define sz(x) (int)x.size()
#define all(x) begin(x),end(x)
#define FOR(i,a,b) for(int i=a; i<b; i++)
//-----------------------------------------------------
const int MX=2e5+10;
int memo[MX][2];
int cnt=0;
vi query(int i){
if(memo[i][0]==-1){
cnt++;
if(cnt>10000) assert(0);
vi vec=ask(i);
memo[i][0]=vec[0];
memo[i][1]=vec[1];
}
return vi{memo[i][0],memo[i][1]};
}
int sq(int x){
return x*x;
}
int find_best(int N){
memset(memo,-1,sizeof(memo));
int lft=0;
while(lft<N){
vi v=query(lft);
if(v[0]+v[1]==0) return lft;
int l=lft,r=min(N-1,lft+1000),rgt;
while(l<=r){
int m=(l+r)/2;
vi vv=query(m);
if(v[0]+v[1]!=vv[0]+vv[1])
r=m-1;
else{
if(v[0]==vv[0]){
rgt=m;
l=m+1;
}
else r=m-1;
}
}
lft=rgt+1;
}
return 0;
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:60:6: warning: 'rgt' may be used uninitialized in this function [-Wmaybe-uninitialized]
60 | lft=rgt+1;
| ~~~^~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
1824 KB |
Output is correct |
| 2 |
Correct |
20 ms |
1736 KB |
Output is correct |
| 3 |
Correct |
12 ms |
1728 KB |
Output is correct |
| 4 |
Correct |
24 ms |
1736 KB |
Output is correct |
| 5 |
Correct |
18 ms |
1824 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1820 KB |
Output is correct |
| 7 |
Correct |
17 ms |
1824 KB |
Output is correct |
| 8 |
Correct |
18 ms |
1832 KB |
Output is correct |
| 9 |
Correct |
16 ms |
1824 KB |
Output is correct |
| 10 |
Correct |
36 ms |
1792 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
1828 KB |
Output is correct |
| 2 |
Correct |
12 ms |
1820 KB |
Output is correct |
| 3 |
Correct |
13 ms |
1832 KB |
Output is correct |
| 4 |
Correct |
34 ms |
1824 KB |
Output is correct |
| 5 |
Correct |
11 ms |
1824 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1736 KB |
Output is correct |
| 7 |
Correct |
17 ms |
1804 KB |
Output is correct |
| 8 |
Correct |
13 ms |
1808 KB |
Output is correct |
| 9 |
Correct |
26 ms |
1804 KB |
Output is correct |
| 10 |
Correct |
22 ms |
1736 KB |
Output is correct |
| 11 |
Correct |
15 ms |
1816 KB |
Output is correct |
| 12 |
Correct |
2 ms |
1808 KB |
Output is correct |
| 13 |
Correct |
38 ms |
1828 KB |
Output is correct |
| 14 |
Correct |
7 ms |
1736 KB |
Output is correct |
| 15 |
Correct |
13 ms |
1824 KB |
Output is correct |
| 16 |
Partially correct |
100 ms |
1808 KB |
Partially correct - number of queries: 7210 |
| 17 |
Correct |
2 ms |
1816 KB |
Output is correct |
| 18 |
Partially correct |
74 ms |
1828 KB |
Partially correct - number of queries: 8685 |
| 19 |
Correct |
2 ms |
1824 KB |
Output is correct |
| 20 |
Correct |
31 ms |
1736 KB |
Output is correct |
| 21 |
Correct |
43 ms |
1824 KB |
Output is correct |
| 22 |
Correct |
4 ms |
1816 KB |
Output is correct |
| 23 |
Correct |
5 ms |
1736 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1736 KB |
Output is correct |
| 25 |
Correct |
55 ms |
1736 KB |
Output is correct |
| 26 |
Correct |
75 ms |
1728 KB |
Output is correct |
| 27 |
Correct |
9 ms |
1736 KB |
Output is correct |
| 28 |
Partially correct |
114 ms |
1828 KB |
Partially correct - number of queries: 8253 |
| 29 |
Partially correct |
39 ms |
1816 KB |
Partially correct - number of queries: 6468 |
| 30 |
Partially correct |
120 ms |
1816 KB |
Partially correct - number of queries: 8767 |
| 31 |
Correct |
1 ms |
1736 KB |
Output is correct |
| 32 |
Correct |
24 ms |
1728 KB |
Output is correct |
| 33 |
Correct |
2 ms |
1736 KB |
Output is correct |
| 34 |
Correct |
36 ms |
1820 KB |
Output is correct |
| 35 |
Correct |
22 ms |
1728 KB |
Output is correct |
| 36 |
Correct |
25 ms |
1820 KB |
Output is correct |
| 37 |
Correct |
8 ms |
1828 KB |
Output is correct |
| 38 |
Correct |
5 ms |
1816 KB |
Output is correct |
| 39 |
Correct |
53 ms |
1812 KB |
Output is correct |
| 40 |
Partially correct |
103 ms |
1820 KB |
Partially correct - number of queries: 6455 |
| 41 |
Correct |
24 ms |
1808 KB |
Output is correct |
| 42 |
Correct |
25 ms |
1824 KB |
Output is correct |
| 43 |
Correct |
62 ms |
1820 KB |
Output is correct |
| 44 |
Correct |
20 ms |
1808 KB |
Output is correct |
| 45 |
Correct |
16 ms |
1824 KB |
Output is correct |
| 46 |
Correct |
2 ms |
1804 KB |
Output is correct |
| 47 |
Correct |
60 ms |
1804 KB |
Output is correct |
| 48 |
Partially correct |
79 ms |
1808 KB |
Partially correct - number of queries: 6251 |
| 49 |
Correct |
14 ms |
1728 KB |
Output is correct |
| 50 |
Partially correct |
135 ms |
1736 KB |
Partially correct - number of queries: 8640 |
| 51 |
Correct |
37 ms |
1736 KB |
Output is correct |
| 52 |
Correct |
2 ms |
1816 KB |
Output is correct |
| 53 |
Correct |
32 ms |
1828 KB |
Output is correct |
| 54 |
Correct |
30 ms |
1736 KB |
Output is correct |
| 55 |
Correct |
1 ms |
1804 KB |
Output is correct |
| 56 |
Partially correct |
66 ms |
1820 KB |
Partially correct - number of queries: 8677 |
| 57 |
Partially correct |
76 ms |
1736 KB |
Partially correct - number of queries: 5934 |
| 58 |
Partially correct |
31 ms |
1804 KB |
Partially correct - number of queries: 6116 |
| 59 |
Correct |
41 ms |
1808 KB |
Output is correct |
| 60 |
Correct |
51 ms |
1736 KB |
Output is correct |
| 61 |
Correct |
28 ms |
1816 KB |
Output is correct |
| 62 |
Correct |
4 ms |
1736 KB |
Output is correct |
| 63 |
Correct |
11 ms |
1816 KB |
Output is correct |
| 64 |
Correct |
22 ms |
1820 KB |
Output is correct |
| 65 |
Correct |
12 ms |
1856 KB |
Output is correct |
| 66 |
Correct |
21 ms |
1828 KB |
Output is correct |
| 67 |
Correct |
19 ms |
1736 KB |
Output is correct |
| 68 |
Correct |
2 ms |
1728 KB |
Output is correct |
| 69 |
Correct |
27 ms |
1728 KB |
Output is correct |
| 70 |
Correct |
35 ms |
1820 KB |
Output is correct |
| 71 |
Partially correct |
96 ms |
1736 KB |
Partially correct - number of queries: 8488 |
| 72 |
Correct |
26 ms |
1736 KB |
Output is correct |
| 73 |
Partially correct |
123 ms |
1736 KB |
Partially correct - number of queries: 8362 |
| 74 |
Partially correct |
81 ms |
1736 KB |
Partially correct - number of queries: 8415 |
| 75 |
Correct |
22 ms |
1736 KB |
Output is correct |
| 76 |
Partially correct |
116 ms |
1736 KB |
Partially correct - number of queries: 7454 |
| 77 |
Partially correct |
42 ms |
1864 KB |
Partially correct - number of queries: 8524 |
| 78 |
Correct |
28 ms |
1736 KB |
Output is correct |
| 79 |
Correct |
32 ms |
1736 KB |
Output is correct |
| 80 |
Partially correct |
82 ms |
1736 KB |
Partially correct - number of queries: 8553 |
| 81 |
Partially correct |
96 ms |
1736 KB |
Partially correct - number of queries: 8570 |
| 82 |
Partially correct |
114 ms |
1736 KB |
Partially correct - number of queries: 8546 |
| 83 |
Correct |
22 ms |
1736 KB |
Output is correct |
| 84 |
Partially correct |
75 ms |
1736 KB |
Partially correct - number of queries: 7363 |
| 85 |
Partially correct |
139 ms |
1736 KB |
Partially correct - number of queries: 8534 |
| 86 |
Correct |
29 ms |
1884 KB |
Output is correct |
| 87 |
Correct |
21 ms |
1736 KB |
Output is correct |
| 88 |
Correct |
25 ms |
1736 KB |
Output is correct |
| 89 |
Correct |
14 ms |
1736 KB |
Output is correct |
| 90 |
Correct |
22 ms |
1828 KB |
Output is correct |
| 91 |
Correct |
23 ms |
1736 KB |
Output is correct |
| 92 |
Correct |
27 ms |
1736 KB |
Output is correct |
| 93 |
Correct |
27 ms |
1736 KB |
Output is correct |
| 94 |
Correct |
26 ms |
1736 KB |
Output is correct |
| 95 |
Correct |
37 ms |
1736 KB |
Output is correct |
| 96 |
Correct |
38 ms |
1736 KB |
Output is correct |
| 97 |
Correct |
30 ms |
1736 KB |
Output is correct |
