#include "prize.h"
using namespace std;
#include <bits/stdc++.h>
int numBetter = 0;
set<int> candidates;
map<int, vector<int>> rem;
int getNumBetter(vector<int> x) {
return x[0]+x[1];
}
int sol = -1;
vector<int> myAsk(int pos) {
if (rem.count(pos)) return rem[pos];
rem[pos] = ask(pos);
return rem[pos];
}
int find_best(int n) {
candidates.clear();
sol=-1;
rem.clear();
numBetter=0;
set<pair<int, vector<int>>> s;
vector<int> queries;
for (int i = 0; i<n; i+=max(1,n/500)) {
int hereBetter = getNumBetter(myAsk(i));
queries.push_back(i);
if (sol != -1) return sol;
if (hereBetter > numBetter) {
numBetter = hereBetter;
}
}
for (int i: queries) {
if (getNumBetter(myAsk(i)) == numBetter) s.insert({i, myAsk(i)});
}
int ahhhh = 0;
while (getNumBetter(myAsk(ahhhh)) < numBetter) {
candidates.insert(ahhhh);
ahhhh++;
}
s.insert({ahhhh, myAsk(ahhhh)});
ahhhh = n-1;
while (getNumBetter(myAsk(ahhhh)) < numBetter) {
candidates.insert(ahhhh);
ahhhh--;
}
s.insert({ahhhh, myAsk(ahhhh)});
for (int i = 0; i<100; i++) {
auto p = s.begin();
while (next(p) != s.end()) {
if((*p).second[0] != (*next(p)).second[0]) {
int m = ((*p).first + (*next(p)).first)/2;
int inc = rand()%2;
while (getNumBetter(myAsk(m)) < numBetter) {
candidates.insert(m);
m+=1-2*inc;
}
s.insert({m, myAsk(m)});
}
p++;
}
}
for (int i: candidates) {
if (getNumBetter(myAsk(i)) == 0) return i;
}
assert(0);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
340 KB |
Output is correct |
| 2 |
Correct |
3 ms |
328 KB |
Output is correct |
| 3 |
Correct |
4 ms |
288 KB |
Output is correct |
| 4 |
Correct |
5 ms |
328 KB |
Output is correct |
| 5 |
Correct |
6 ms |
336 KB |
Output is correct |
| 6 |
Correct |
6 ms |
340 KB |
Output is correct |
| 7 |
Correct |
3 ms |
312 KB |
Output is correct |
| 8 |
Correct |
5 ms |
288 KB |
Output is correct |
| 9 |
Correct |
5 ms |
340 KB |
Output is correct |
| 10 |
Correct |
4 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
344 KB |
Output is correct |
| 2 |
Correct |
5 ms |
272 KB |
Output is correct |
| 3 |
Correct |
4 ms |
320 KB |
Output is correct |
| 4 |
Correct |
5 ms |
336 KB |
Output is correct |
| 5 |
Correct |
4 ms |
300 KB |
Output is correct |
| 6 |
Correct |
6 ms |
332 KB |
Output is correct |
| 7 |
Correct |
5 ms |
340 KB |
Output is correct |
| 8 |
Correct |
7 ms |
300 KB |
Output is correct |
| 9 |
Correct |
4 ms |
348 KB |
Output is correct |
| 10 |
Correct |
5 ms |
352 KB |
Output is correct |
| 11 |
Correct |
10 ms |
340 KB |
Output is correct |
| 12 |
Correct |
9 ms |
448 KB |
Output is correct |
| 13 |
Correct |
6 ms |
424 KB |
Output is correct |
| 14 |
Correct |
19 ms |
464 KB |
Output is correct |
| 15 |
Correct |
73 ms |
1192 KB |
Output is correct |
| 16 |
Correct |
70 ms |
1180 KB |
Output is correct |
| 17 |
Correct |
50 ms |
1248 KB |
Output is correct |
| 18 |
Correct |
76 ms |
1296 KB |
Output is correct |
| 19 |
Correct |
67 ms |
1176 KB |
Output is correct |
| 20 |
Correct |
41 ms |
920 KB |
Output is correct |
| 21 |
Correct |
51 ms |
1248 KB |
Output is correct |
| 22 |
Correct |
39 ms |
1024 KB |
Output is correct |
| 23 |
Correct |
6 ms |
292 KB |
Output is correct |
| 24 |
Correct |
6 ms |
404 KB |
Output is correct |
| 25 |
Correct |
50 ms |
1172 KB |
Output is correct |
| 26 |
Correct |
66 ms |
1108 KB |
Output is correct |
| 27 |
Correct |
4 ms |
336 KB |
Output is correct |
| 28 |
Correct |
65 ms |
1172 KB |
Output is correct |
| 29 |
Correct |
55 ms |
1036 KB |
Output is correct |
| 30 |
Correct |
65 ms |
1224 KB |
Output is correct |
| 31 |
Correct |
61 ms |
1180 KB |
Output is correct |
| 32 |
Correct |
9 ms |
412 KB |
Output is correct |
| 33 |
Correct |
2 ms |
304 KB |
Output is correct |
| 34 |
Correct |
57 ms |
1268 KB |
Output is correct |
| 35 |
Correct |
4 ms |
416 KB |
Output is correct |
| 36 |
Correct |
68 ms |
1184 KB |
Output is correct |
| 37 |
Correct |
5 ms |
460 KB |
Output is correct |
| 38 |
Correct |
6 ms |
300 KB |
Output is correct |
| 39 |
Correct |
69 ms |
1208 KB |
Output is correct |
| 40 |
Correct |
42 ms |
1168 KB |
Output is correct |
| 41 |
Correct |
63 ms |
1256 KB |
Output is correct |
| 42 |
Correct |
74 ms |
1184 KB |
Output is correct |
| 43 |
Correct |
57 ms |
1160 KB |
Output is correct |
| 44 |
Correct |
53 ms |
1240 KB |
Output is correct |
| 45 |
Correct |
76 ms |
1116 KB |
Output is correct |
| 46 |
Correct |
59 ms |
1356 KB |
Output is correct |
| 47 |
Correct |
47 ms |
1180 KB |
Output is correct |
| 48 |
Correct |
51 ms |
1256 KB |
Output is correct |
| 49 |
Correct |
56 ms |
1440 KB |
Output is correct |
| 50 |
Correct |
59 ms |
1172 KB |
Output is correct |
| 51 |
Correct |
50 ms |
1244 KB |
Output is correct |
| 52 |
Correct |
56 ms |
1216 KB |
Output is correct |
| 53 |
Correct |
4 ms |
404 KB |
Output is correct |
| 54 |
Correct |
54 ms |
1312 KB |
Output is correct |
| 55 |
Correct |
70 ms |
1264 KB |
Output is correct |
| 56 |
Correct |
59 ms |
1180 KB |
Output is correct |
| 57 |
Correct |
67 ms |
1204 KB |
Output is correct |
| 58 |
Correct |
63 ms |
1292 KB |
Output is correct |
| 59 |
Correct |
77 ms |
1200 KB |
Output is correct |
| 60 |
Correct |
67 ms |
1224 KB |
Output is correct |
| 61 |
Correct |
4 ms |
452 KB |
Output is correct |
| 62 |
Correct |
5 ms |
336 KB |
Output is correct |
| 63 |
Correct |
6 ms |
324 KB |
Output is correct |
| 64 |
Correct |
4 ms |
392 KB |
Output is correct |
| 65 |
Correct |
4 ms |
316 KB |
Output is correct |
| 66 |
Correct |
5 ms |
412 KB |
Output is correct |
| 67 |
Correct |
5 ms |
412 KB |
Output is correct |
| 68 |
Correct |
5 ms |
404 KB |
Output is correct |
| 69 |
Correct |
11 ms |
412 KB |
Output is correct |
| 70 |
Correct |
7 ms |
420 KB |
Output is correct |
| 71 |
Correct |
68 ms |
1264 KB |
Output is correct |
| 72 |
Correct |
7 ms |
440 KB |
Output is correct |
| 73 |
Correct |
69 ms |
1196 KB |
Output is correct |
| 74 |
Correct |
69 ms |
1184 KB |
Output is correct |
| 75 |
Correct |
6 ms |
336 KB |
Output is correct |
| 76 |
Correct |
54 ms |
1140 KB |
Output is correct |
| 77 |
Correct |
76 ms |
1216 KB |
Output is correct |
| 78 |
Correct |
8 ms |
464 KB |
Output is correct |
| 79 |
Correct |
26 ms |
880 KB |
Output is correct |
| 80 |
Correct |
73 ms |
1200 KB |
Output is correct |
| 81 |
Correct |
63 ms |
1260 KB |
Output is correct |
| 82 |
Correct |
68 ms |
1284 KB |
Output is correct |
| 83 |
Correct |
4 ms |
344 KB |
Output is correct |
| 84 |
Correct |
41 ms |
1088 KB |
Output is correct |
| 85 |
Correct |
58 ms |
1316 KB |
Output is correct |
| 86 |
Correct |
48 ms |
1096 KB |
Output is correct |
| 87 |
Correct |
5 ms |
432 KB |
Output is correct |
| 88 |
Correct |
53 ms |
1084 KB |
Output is correct |
| 89 |
Correct |
61 ms |
1176 KB |
Output is correct |
| 90 |
Correct |
5 ms |
340 KB |
Output is correct |
| 91 |
Correct |
40 ms |
888 KB |
Output is correct |
| 92 |
Correct |
61 ms |
1176 KB |
Output is correct |
| 93 |
Correct |
74 ms |
1180 KB |
Output is correct |
| 94 |
Correct |
74 ms |
1248 KB |
Output is correct |
| 95 |
Correct |
74 ms |
1200 KB |
Output is correct |
| 96 |
Correct |
70 ms |
1220 KB |
Output is correct |
| 97 |
Correct |
52 ms |
1220 KB |
Output is correct |
