#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
int unloli,ans;
void calc(int l,int r,int tol,int tor){
if(ans)
return;
if(l>r)
return;
if(tol+tor==unloli)
return;
if(tol+tor+r-l+1==unloli){
for(int i=l;i<=r;i++) {
vector<int>x=ask(i);
if(x[0]+x[1]==0) {
ans=i;
return;
}
}
return;
}
int mid=l+r>>1,pt=mid;
vector<int>stuff=ask(mid);
if(stuff[0]+stuff[1]==0){
ans=mid;
return;
}
while(stuff[0]+stuff[1]-unloli&&pt>l){
stuff=ask(--pt);
if(stuff[0]+stuff[1]==0){
ans=pt;
return;
}
}
if(stuff[0]+stuff[1]==unloli)
calc(l,pt-1,tol,stuff[1]),
calc(mid+1,r,stuff[0],tor);
else {
stuff=ask(++mid);
if(stuff[0]+stuff[1]==0) {
ans=mid;
return;
}
while(stuff[0]+stuff[1]-unloli){
stuff=ask(++mid);
if(stuff[0]+stuff[1]==0) {
ans=mid;
return;
}
}
calc(mid+1,r,stuff[0],tor);
}
}
int find_best(int n) {
if(n<5002) {
for(int i = 1; i < n; i++) {
std::vector<int> res = ask(i);
if(res[0] + res[1] == 0)
return i;
}
return 0;
}
map<int,int>cnt;
for(int i=0;i<455;i++){
vector<int>x=ask(i);
if(x[0]+x[1]==0)
return i;
cnt[x[0]+x[1]]++;
unloli=max(unloli,x[0]+x[1]);
}
int s=0;
for(auto[i,j]:cnt)
s+=(i<unloli)*j;
calc(455,n-1,s,0);
return ans;
}
Compilation message
prize.cpp: In function 'void calc(int, int, int, int)':
prize.cpp:22:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
22 | int mid=l+r>>1,pt=mid;
| ~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
344 KB |
Output is correct |
| 2 |
Correct |
3 ms |
432 KB |
Output is correct |
| 3 |
Correct |
2 ms |
344 KB |
Output is correct |
| 4 |
Correct |
2 ms |
344 KB |
Output is correct |
| 5 |
Correct |
2 ms |
432 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
2 ms |
600 KB |
Output is correct |
| 8 |
Correct |
2 ms |
344 KB |
Output is correct |
| 9 |
Correct |
2 ms |
344 KB |
Output is correct |
| 10 |
Correct |
2 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
344 KB |
Output is correct |
| 2 |
Correct |
3 ms |
432 KB |
Output is correct |
| 3 |
Correct |
2 ms |
340 KB |
Output is correct |
| 4 |
Correct |
2 ms |
344 KB |
Output is correct |
| 5 |
Correct |
2 ms |
596 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
2 ms |
344 KB |
Output is correct |
| 8 |
Correct |
2 ms |
432 KB |
Output is correct |
| 9 |
Correct |
2 ms |
344 KB |
Output is correct |
| 10 |
Correct |
3 ms |
344 KB |
Output is correct |
| 11 |
Correct |
3 ms |
344 KB |
Output is correct |
| 12 |
Correct |
2 ms |
344 KB |
Output is correct |
| 13 |
Correct |
4 ms |
344 KB |
Output is correct |
| 14 |
Correct |
2 ms |
344 KB |
Output is correct |
| 15 |
Correct |
5 ms |
600 KB |
Output is correct |
| 16 |
Correct |
23 ms |
344 KB |
Output is correct |
| 17 |
Correct |
2 ms |
344 KB |
Output is correct |
| 18 |
Partially correct |
28 ms |
344 KB |
Partially correct - number of queries: 5219 |
| 19 |
Correct |
2 ms |
344 KB |
Output is correct |
| 20 |
Correct |
6 ms |
504 KB |
Output is correct |
| 21 |
Correct |
10 ms |
344 KB |
Output is correct |
| 22 |
Correct |
3 ms |
344 KB |
Output is correct |
| 23 |
Correct |
2 ms |
432 KB |
Output is correct |
| 24 |
Correct |
2 ms |
344 KB |
Output is correct |
| 25 |
Correct |
17 ms |
432 KB |
Output is correct |
| 26 |
Correct |
12 ms |
344 KB |
Output is correct |
| 27 |
Correct |
2 ms |
344 KB |
Output is correct |
| 28 |
Correct |
18 ms |
340 KB |
Output is correct |
| 29 |
Correct |
20 ms |
436 KB |
Output is correct |
| 30 |
Partially correct |
22 ms |
344 KB |
Partially correct - number of queries: 5185 |
| 31 |
Correct |
2 ms |
344 KB |
Output is correct |
| 32 |
Correct |
3 ms |
596 KB |
Output is correct |
| 33 |
Correct |
0 ms |
344 KB |
Output is correct |
| 34 |
Correct |
11 ms |
344 KB |
Output is correct |
| 35 |
Correct |
3 ms |
432 KB |
Output is correct |
| 36 |
Correct |
6 ms |
432 KB |
Output is correct |
| 37 |
Correct |
2 ms |
344 KB |
Output is correct |
| 38 |
Correct |
3 ms |
344 KB |
Output is correct |
| 39 |
Correct |
15 ms |
344 KB |
Output is correct |
| 40 |
Correct |
21 ms |
344 KB |
Output is correct |
| 41 |
Correct |
18 ms |
432 KB |
Output is correct |
| 42 |
Correct |
12 ms |
344 KB |
Output is correct |
| 43 |
Correct |
13 ms |
436 KB |
Output is correct |
| 44 |
Correct |
13 ms |
432 KB |
Output is correct |
| 45 |
Correct |
10 ms |
344 KB |
Output is correct |
| 46 |
Correct |
2 ms |
344 KB |
Output is correct |
| 47 |
Correct |
11 ms |
344 KB |
Output is correct |
| 48 |
Correct |
18 ms |
344 KB |
Output is correct |
| 49 |
Correct |
3 ms |
428 KB |
Output is correct |
| 50 |
Partially correct |
26 ms |
344 KB |
Partially correct - number of queries: 5218 |
| 51 |
Correct |
16 ms |
432 KB |
Output is correct |
| 52 |
Correct |
3 ms |
344 KB |
Output is correct |
| 53 |
Correct |
3 ms |
432 KB |
Output is correct |
| 54 |
Correct |
11 ms |
344 KB |
Output is correct |
| 55 |
Correct |
2 ms |
344 KB |
Output is correct |
| 56 |
Partially correct |
27 ms |
344 KB |
Partially correct - number of queries: 5218 |
| 57 |
Correct |
16 ms |
432 KB |
Output is correct |
| 58 |
Correct |
18 ms |
344 KB |
Output is correct |
| 59 |
Correct |
12 ms |
344 KB |
Output is correct |
| 60 |
Correct |
14 ms |
600 KB |
Output is correct |
| 61 |
Correct |
2 ms |
344 KB |
Output is correct |
| 62 |
Correct |
2 ms |
600 KB |
Output is correct |
| 63 |
Correct |
3 ms |
436 KB |
Output is correct |
| 64 |
Correct |
3 ms |
540 KB |
Output is correct |
| 65 |
Correct |
2 ms |
436 KB |
Output is correct |
| 66 |
Correct |
4 ms |
344 KB |
Output is correct |
| 67 |
Correct |
2 ms |
344 KB |
Output is correct |
| 68 |
Correct |
2 ms |
344 KB |
Output is correct |
| 69 |
Correct |
4 ms |
596 KB |
Output is correct |
| 70 |
Correct |
2 ms |
344 KB |
Output is correct |
| 71 |
Partially correct |
25 ms |
432 KB |
Partially correct - number of queries: 5214 |
| 72 |
Correct |
4 ms |
432 KB |
Output is correct |
| 73 |
Partially correct |
28 ms |
344 KB |
Partially correct - number of queries: 5151 |
| 74 |
Partially correct |
31 ms |
344 KB |
Partially correct - number of queries: 5178 |
| 75 |
Correct |
2 ms |
344 KB |
Output is correct |
| 76 |
Correct |
17 ms |
344 KB |
Output is correct |
| 77 |
Partially correct |
29 ms |
344 KB |
Partially correct - number of queries: 5391 |
| 78 |
Correct |
4 ms |
440 KB |
Output is correct |
| 79 |
Correct |
13 ms |
344 KB |
Output is correct |
| 80 |
Partially correct |
19 ms |
432 KB |
Partially correct - number of queries: 5375 |
| 81 |
Partially correct |
20 ms |
344 KB |
Partially correct - number of queries: 5375 |
| 82 |
Partially correct |
21 ms |
344 KB |
Partially correct - number of queries: 5351 |
| 83 |
Correct |
3 ms |
436 KB |
Output is correct |
| 84 |
Correct |
28 ms |
596 KB |
Output is correct |
| 85 |
Partially correct |
27 ms |
344 KB |
Partially correct - number of queries: 5371 |
| 86 |
Incorrect |
45 ms |
344 KB |
Incorrect |
| 87 |
Halted |
0 ms |
0 KB |
- |
