#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
int unloli,ans=-1;
map<int,vector<int>> mem;
vector<int>ask2(int n){
if(mem.count(n))
return mem[n];
return mem[n]=ask(n);
}
void calc(int l,int r,int tol,int tor){
if(ans>=0)
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=ask2(i);
if(x[0]+x[1]==0) {
ans=i;
return;
}
}
return;
}
int mid=l+r>>1,pt=mid;
vector<int>stuff=ask2(mid);
if(stuff[0]+stuff[1]==0){
ans=mid;
return;
}
while(stuff[0]+stuff[1]-unloli&&pt>l){
stuff=ask2(--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=ask2(++mid);
if(stuff[0]+stuff[1]==0) {
ans=mid;
return;
}
while(stuff[0]+stuff[1]-unloli){
stuff=ask2(++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 = ask2(i);
if(res[0] + res[1] == 0)
return i;
}
return 0;
}
map<int,int>cnt;
for(int i=0;i<512;i++){
vector<int>x=ask2(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(512,n-1,s,0);
return ans;
}
Compilation message
prize.cpp: In function 'void calc(int, int, int, int)':
prize.cpp:28:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
28 | int mid=l+r>>1,pt=mid;
| ~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
440 KB |
Output is correct |
| 2 |
Correct |
3 ms |
744 KB |
Output is correct |
| 3 |
Correct |
2 ms |
744 KB |
Output is correct |
| 4 |
Correct |
4 ms |
976 KB |
Output is correct |
| 5 |
Correct |
2 ms |
740 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
3 ms |
956 KB |
Output is correct |
| 8 |
Correct |
3 ms |
972 KB |
Output is correct |
| 9 |
Correct |
3 ms |
696 KB |
Output is correct |
| 10 |
Correct |
3 ms |
744 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
692 KB |
Output is correct |
| 2 |
Correct |
2 ms |
740 KB |
Output is correct |
| 3 |
Correct |
3 ms |
744 KB |
Output is correct |
| 4 |
Correct |
3 ms |
976 KB |
Output is correct |
| 5 |
Correct |
2 ms |
728 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
3 ms |
740 KB |
Output is correct |
| 8 |
Correct |
3 ms |
980 KB |
Output is correct |
| 9 |
Correct |
2 ms |
488 KB |
Output is correct |
| 10 |
Correct |
2 ms |
748 KB |
Output is correct |
| 11 |
Correct |
3 ms |
980 KB |
Output is correct |
| 12 |
Correct |
2 ms |
488 KB |
Output is correct |
| 13 |
Correct |
4 ms |
996 KB |
Output is correct |
| 14 |
Correct |
3 ms |
692 KB |
Output is correct |
| 15 |
Correct |
6 ms |
1248 KB |
Output is correct |
| 16 |
Correct |
22 ms |
2300 KB |
Output is correct |
| 17 |
Correct |
3 ms |
692 KB |
Output is correct |
| 18 |
Partially correct |
23 ms |
1180 KB |
Partially correct - number of queries: 5275 |
| 19 |
Correct |
2 ms |
956 KB |
Output is correct |
| 20 |
Correct |
9 ms |
1000 KB |
Output is correct |
| 21 |
Correct |
10 ms |
920 KB |
Output is correct |
| 22 |
Correct |
4 ms |
748 KB |
Output is correct |
| 23 |
Correct |
3 ms |
1224 KB |
Output is correct |
| 24 |
Correct |
2 ms |
492 KB |
Output is correct |
| 25 |
Correct |
12 ms |
1656 KB |
Output is correct |
| 26 |
Correct |
12 ms |
1464 KB |
Output is correct |
| 27 |
Correct |
3 ms |
948 KB |
Output is correct |
| 28 |
Correct |
23 ms |
2120 KB |
Output is correct |
| 29 |
Correct |
17 ms |
1728 KB |
Output is correct |
| 30 |
Partially correct |
24 ms |
1144 KB |
Partially correct - number of queries: 5239 |
| 31 |
Correct |
2 ms |
692 KB |
Output is correct |
| 32 |
Correct |
4 ms |
692 KB |
Output is correct |
| 33 |
Correct |
0 ms |
344 KB |
Output is correct |
| 34 |
Correct |
10 ms |
1292 KB |
Output is correct |
| 35 |
Correct |
3 ms |
740 KB |
Output is correct |
| 36 |
Correct |
9 ms |
1232 KB |
Output is correct |
| 37 |
Correct |
3 ms |
492 KB |
Output is correct |
| 38 |
Correct |
3 ms |
696 KB |
Output is correct |
| 39 |
Correct |
13 ms |
1632 KB |
Output is correct |
| 40 |
Correct |
23 ms |
1816 KB |
Output is correct |
| 41 |
Correct |
15 ms |
1260 KB |
Output is correct |
| 42 |
Correct |
13 ms |
1416 KB |
Output is correct |
| 43 |
Correct |
13 ms |
1396 KB |
Output is correct |
| 44 |
Correct |
13 ms |
1132 KB |
Output is correct |
| 45 |
Correct |
11 ms |
1260 KB |
Output is correct |
| 46 |
Correct |
2 ms |
464 KB |
Output is correct |
| 47 |
Correct |
10 ms |
1504 KB |
Output is correct |
| 48 |
Correct |
23 ms |
1084 KB |
Output is correct |
| 49 |
Correct |
4 ms |
1220 KB |
Output is correct |
| 50 |
Partially correct |
29 ms |
1152 KB |
Partially correct - number of queries: 5269 |
| 51 |
Correct |
10 ms |
696 KB |
Output is correct |
| 52 |
Correct |
2 ms |
744 KB |
Output is correct |
| 53 |
Correct |
3 ms |
968 KB |
Output is correct |
| 54 |
Correct |
11 ms |
1152 KB |
Output is correct |
| 55 |
Correct |
2 ms |
636 KB |
Output is correct |
| 56 |
Partially correct |
34 ms |
1104 KB |
Partially correct - number of queries: 5275 |
| 57 |
Correct |
20 ms |
1388 KB |
Output is correct |
| 58 |
Correct |
22 ms |
1860 KB |
Output is correct |
| 59 |
Correct |
14 ms |
1824 KB |
Output is correct |
| 60 |
Correct |
13 ms |
1588 KB |
Output is correct |
| 61 |
Correct |
3 ms |
724 KB |
Output is correct |
| 62 |
Correct |
3 ms |
956 KB |
Output is correct |
| 63 |
Correct |
3 ms |
744 KB |
Output is correct |
| 64 |
Correct |
3 ms |
728 KB |
Output is correct |
| 65 |
Correct |
3 ms |
944 KB |
Output is correct |
| 66 |
Correct |
4 ms |
720 KB |
Output is correct |
| 67 |
Correct |
4 ms |
980 KB |
Output is correct |
| 68 |
Correct |
3 ms |
724 KB |
Output is correct |
| 69 |
Correct |
5 ms |
996 KB |
Output is correct |
| 70 |
Correct |
3 ms |
968 KB |
Output is correct |
| 71 |
Partially correct |
24 ms |
1924 KB |
Partially correct - number of queries: 5271 |
| 72 |
Correct |
4 ms |
788 KB |
Output is correct |
| 73 |
Partially correct |
30 ms |
1952 KB |
Partially correct - number of queries: 5208 |
| 74 |
Partially correct |
34 ms |
1444 KB |
Partially correct - number of queries: 5235 |
| 75 |
Correct |
3 ms |
1248 KB |
Output is correct |
| 76 |
Correct |
25 ms |
1488 KB |
Output is correct |
| 77 |
Partially correct |
27 ms |
1952 KB |
Partially correct - number of queries: 5455 |
| 78 |
Correct |
5 ms |
944 KB |
Output is correct |
| 79 |
Correct |
14 ms |
1524 KB |
Output is correct |
| 80 |
Partially correct |
29 ms |
1904 KB |
Partially correct - number of queries: 5443 |
| 81 |
Partially correct |
29 ms |
1860 KB |
Partially correct - number of queries: 5457 |
| 82 |
Partially correct |
35 ms |
1596 KB |
Partially correct - number of queries: 5402 |
| 83 |
Correct |
3 ms |
948 KB |
Output is correct |
| 84 |
Correct |
19 ms |
1980 KB |
Output is correct |
| 85 |
Partially correct |
20 ms |
1500 KB |
Partially correct - number of queries: 5411 |
| 86 |
Correct |
3 ms |
692 KB |
Output is correct |
| 87 |
Correct |
3 ms |
692 KB |
Output is correct |
| 88 |
Correct |
2 ms |
692 KB |
Output is correct |
| 89 |
Correct |
2 ms |
696 KB |
Output is correct |
| 90 |
Correct |
4 ms |
948 KB |
Output is correct |
| 91 |
Correct |
3 ms |
968 KB |
Output is correct |
| 92 |
Correct |
3 ms |
1204 KB |
Output is correct |
| 93 |
Correct |
4 ms |
980 KB |
Output is correct |
| 94 |
Correct |
4 ms |
996 KB |
Output is correct |
| 95 |
Correct |
4 ms |
968 KB |
Output is correct |
| 96 |
Correct |
6 ms |
692 KB |
Output is correct |
| 97 |
Correct |
2 ms |
492 KB |
Output is correct |
