//viewed solution
#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(mid+1,r,stuff[0],tor),
calc(l,pt-1,tol,stuff[1]);
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;
int to=473;
for(int i=0;i<to;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]);
if(unloli>27)
to=i+1;
}
int s=0;
for(auto[i,j]:cnt)
s+=(i<unloli)*j;
calc(to,n-1,s,0);
return ans;
}
Compilation message
prize.cpp: In function 'void calc(int, int, int, int)':
prize.cpp:29:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
29 | int mid=l+r>>1,pt=mid;
| ~^~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1212 KB |
Output is correct |
2 |
Correct |
2 ms |
712 KB |
Output is correct |
3 |
Correct |
2 ms |
700 KB |
Output is correct |
4 |
Correct |
2 ms |
696 KB |
Output is correct |
5 |
Correct |
2 ms |
728 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
2 ms |
968 KB |
Output is correct |
8 |
Correct |
3 ms |
692 KB |
Output is correct |
9 |
Correct |
2 ms |
956 KB |
Output is correct |
10 |
Correct |
2 ms |
732 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
704 KB |
Output is correct |
2 |
Correct |
2 ms |
720 KB |
Output is correct |
3 |
Correct |
2 ms |
692 KB |
Output is correct |
4 |
Correct |
2 ms |
700 KB |
Output is correct |
5 |
Correct |
2 ms |
964 KB |
Output is correct |
6 |
Correct |
0 ms |
544 KB |
Output is correct |
7 |
Correct |
3 ms |
972 KB |
Output is correct |
8 |
Correct |
3 ms |
968 KB |
Output is correct |
9 |
Correct |
2 ms |
460 KB |
Output is correct |
10 |
Correct |
3 ms |
744 KB |
Output is correct |
11 |
Correct |
1 ms |
464 KB |
Output is correct |
12 |
Correct |
2 ms |
464 KB |
Output is correct |
13 |
Correct |
1 ms |
436 KB |
Output is correct |
14 |
Correct |
4 ms |
948 KB |
Output is correct |
15 |
Correct |
22 ms |
1592 KB |
Output is correct |
16 |
Correct |
6 ms |
980 KB |
Output is correct |
17 |
Correct |
19 ms |
2076 KB |
Output is correct |
18 |
Correct |
0 ms |
436 KB |
Output is correct |
19 |
Correct |
21 ms |
1216 KB |
Output is correct |
20 |
Correct |
8 ms |
1340 KB |
Output is correct |
21 |
Correct |
13 ms |
1040 KB |
Output is correct |
22 |
Correct |
13 ms |
1236 KB |
Output is correct |
23 |
Correct |
3 ms |
740 KB |
Output is correct |
24 |
Correct |
2 ms |
468 KB |
Output is correct |
25 |
Correct |
9 ms |
992 KB |
Output is correct |
26 |
Correct |
8 ms |
828 KB |
Output is correct |
27 |
Correct |
2 ms |
484 KB |
Output is correct |
28 |
Correct |
1 ms |
440 KB |
Output is correct |
29 |
Correct |
2 ms |
700 KB |
Output is correct |
30 |
Correct |
0 ms |
436 KB |
Output is correct |
31 |
Correct |
20 ms |
1948 KB |
Output is correct |
32 |
Correct |
1 ms |
440 KB |
Output is correct |
33 |
Correct |
0 ms |
344 KB |
Output is correct |
34 |
Correct |
15 ms |
1808 KB |
Output is correct |
35 |
Correct |
3 ms |
952 KB |
Output is correct |
36 |
Correct |
25 ms |
1004 KB |
Output is correct |
37 |
Correct |
2 ms |
720 KB |
Output is correct |
38 |
Correct |
3 ms |
720 KB |
Output is correct |
39 |
Correct |
11 ms |
1348 KB |
Output is correct |
40 |
Correct |
1 ms |
440 KB |
Output is correct |
41 |
Correct |
9 ms |
1384 KB |
Output is correct |
42 |
Correct |
11 ms |
752 KB |
Output is correct |
43 |
Correct |
9 ms |
1376 KB |
Output is correct |
44 |
Correct |
12 ms |
1700 KB |
Output is correct |
45 |
Correct |
16 ms |
1564 KB |
Output is correct |
46 |
Correct |
22 ms |
1780 KB |
Output is correct |
47 |
Correct |
11 ms |
724 KB |
Output is correct |
48 |
Correct |
6 ms |
996 KB |
Output is correct |
49 |
Correct |
21 ms |
1196 KB |
Output is correct |
50 |
Correct |
1 ms |
428 KB |
Output is correct |
51 |
Correct |
14 ms |
1436 KB |
Output is correct |
52 |
Correct |
23 ms |
988 KB |
Output is correct |
53 |
Correct |
2 ms |
724 KB |
Output is correct |
54 |
Correct |
16 ms |
1100 KB |
Output is correct |
55 |
Correct |
22 ms |
1772 KB |
Output is correct |
56 |
Correct |
0 ms |
432 KB |
Output is correct |
57 |
Correct |
6 ms |
1056 KB |
Output is correct |
58 |
Correct |
6 ms |
1016 KB |
Output is correct |
59 |
Correct |
9 ms |
1340 KB |
Output is correct |
60 |
Correct |
9 ms |
1256 KB |
Output is correct |
61 |
Correct |
2 ms |
720 KB |
Output is correct |
62 |
Correct |
3 ms |
948 KB |
Output is correct |
63 |
Correct |
2 ms |
716 KB |
Output is correct |
64 |
Correct |
2 ms |
488 KB |
Output is correct |
65 |
Correct |
1 ms |
440 KB |
Output is correct |
66 |
Correct |
2 ms |
704 KB |
Output is correct |
67 |
Correct |
1 ms |
440 KB |
Output is correct |
68 |
Correct |
2 ms |
716 KB |
Output is correct |
69 |
Correct |
2 ms |
468 KB |
Output is correct |
70 |
Correct |
1 ms |
436 KB |
Output is correct |
71 |
Correct |
23 ms |
1852 KB |
Output is correct |
72 |
Correct |
2 ms |
736 KB |
Output is correct |
73 |
Correct |
26 ms |
1508 KB |
Output is correct |
74 |
Correct |
21 ms |
1324 KB |
Output is correct |
75 |
Correct |
3 ms |
980 KB |
Output is correct |
76 |
Correct |
23 ms |
1116 KB |
Output is correct |
77 |
Correct |
23 ms |
1572 KB |
Output is correct |
78 |
Correct |
2 ms |
688 KB |
Output is correct |
79 |
Correct |
13 ms |
1496 KB |
Output is correct |
80 |
Correct |
23 ms |
2056 KB |
Output is correct |
81 |
Correct |
29 ms |
1572 KB |
Output is correct |
82 |
Correct |
27 ms |
1340 KB |
Output is correct |
83 |
Correct |
3 ms |
692 KB |
Output is correct |
84 |
Correct |
19 ms |
1732 KB |
Output is correct |
85 |
Correct |
23 ms |
1236 KB |
Output is correct |
86 |
Correct |
2 ms |
968 KB |
Output is correct |
87 |
Correct |
1 ms |
440 KB |
Output is correct |
88 |
Correct |
2 ms |
1144 KB |
Output is correct |
89 |
Correct |
2 ms |
944 KB |
Output is correct |
90 |
Correct |
2 ms |
436 KB |
Output is correct |
91 |
Correct |
1 ms |
692 KB |
Output is correct |
92 |
Correct |
3 ms |
436 KB |
Output is correct |
93 |
Correct |
3 ms |
980 KB |
Output is correct |
94 |
Correct |
6 ms |
696 KB |
Output is correct |
95 |
Correct |
3 ms |
1248 KB |
Output is correct |
96 |
Correct |
4 ms |
744 KB |
Output is correct |
97 |
Correct |
2 ms |
976 KB |
Output is correct |