#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> res[200000];
set<int> nextPos, curPos;
vector<int> positions;
int smaller, nextSmaller;
int flag=-1;
void get(int i) {
if(res[i][0] != -1 && res[i][1] != -1) return;
res[i] = ask(i);
if(res[i][0]+res[i][1]==0) flag=i;
}
void dac(int lo, int hi) {
// cerr << lo << " " << hi << endl;
if(lo == hi) return;
get(positions[lo]);
if(flag!=-1) {return;}
get(positions[hi]);
if(flag!=-1) {return;}
if(res[positions[lo]][0]==res[positions[hi]][0] &&
res[positions[lo]][1]==res[positions[hi]][1]) return;
if(res[positions[lo]][1]-res[positions[hi]][1]==hi-lo-1) {
for(int i = lo+1; i <= hi-1; i++) {
nextPos.insert(positions[i]);
get(positions[i]);
if(flag!=-1) {return;}
nextSmaller = max(nextSmaller, res[positions[i]][0]+res[positions[i]][1]);
}
return;
}
int mid = (hi+lo)/2;
get(positions[mid]);
if(flag!=-1) {return;}
if(res[positions[mid]][0]+res[positions[mid]][1] == smaller) {
dac(lo, mid);
dac(mid, hi);
return;
}
int m1 = mid;
while(m1 != lo && res[positions[m1]][0]+res[positions[m1]][1] != smaller) {
nextPos.insert(m1);
nextSmaller = max(nextSmaller, res[positions[m1]][0]+res[positions[m1]][1]);
m1--;
get(positions[m1]);
if(flag!=-1) {return;}}
dac(lo, m1);
int m2 = mid;
while(m2 != hi && res[positions[m2]][0]+res[positions[m2]][1] != smaller) {
nextPos.insert(m2);
nextSmaller = max(nextSmaller, res[positions[m2]][0]+res[positions[m2]][1]);
m2++;
get(positions[m2]);
if(flag!=-1) {return;}}
dac(m2, hi);
return;
}
int find_best(int n) {
int x = 1;
int soFar = 1;
int i;
for(i = 1; x <= 200000; i++) {
// cerr << i << ": " << x << " " << soFar << endl;
x = x*x+1;
soFar += x;
}
// cerr << i << ": " << x << " " << soFar << endl;
for(int i = 0; i < n; i++) {
res[i] = {-1, -1};
}
for(int i = 0; i < 472 && i < n; i++) {
get(i);
if(flag!=-1) return flag;
if(res[i][0]+res[i][1]==0) return i;
smaller = max(smaller, res[i][0]+res[i][1]);
if(res[i][0]+res[i][1]>34) break;
}
for(int i = 0; i < n; i++) nextPos.insert(i);
nextSmaller = smaller;
while(nextPos.size() > 500) {
curPos = nextPos;
positions = {};
for(auto x: curPos) {
if(res[x][0]+res[x][1]==0) return x;
positions.push_back(x);
}
nextPos.clear();
smaller = nextSmaller;
nextSmaller = 0;
int lo = 0;
get(lo);
if(flag!=-1) return flag;
while(res[positions[lo]][0]+res[positions[lo]][1] < smaller) {
nextPos.insert(positions[lo]);
lo++;
get(lo);
if(flag!=-1) return flag;}
int hi = positions.size()-1;
get(hi);
if(flag!=-1) return flag;
while(res[positions[hi]][0]+res[positions[hi]][1] < smaller) {
nextPos.insert(positions[hi]);
hi--;
get(hi);
if(flag!=-1) return flag;}
dac(lo, hi);
if(flag!=-1) return flag;
}
for(auto x: nextPos) {
get(x);
if(res[x][0]+res[x][1]==0) return x;
}
return *(nextPos.begin());
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
122 ms |
31172 KB |
Output is correct |
| 2 |
Correct |
118 ms |
31288 KB |
Output is correct |
| 3 |
Correct |
116 ms |
31288 KB |
Output is correct |
| 4 |
Correct |
141 ms |
31288 KB |
Output is correct |
| 5 |
Correct |
121 ms |
31352 KB |
Output is correct |
| 6 |
Correct |
22 ms |
31352 KB |
Output is correct |
| 7 |
Correct |
130 ms |
31440 KB |
Output is correct |
| 8 |
Correct |
121 ms |
31440 KB |
Output is correct |
| 9 |
Correct |
126 ms |
31440 KB |
Output is correct |
| 10 |
Correct |
132 ms |
31440 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
134 ms |
31440 KB |
Output is correct |
| 2 |
Correct |
116 ms |
31440 KB |
Output is correct |
| 3 |
Correct |
118 ms |
31520 KB |
Output is correct |
| 4 |
Correct |
120 ms |
31520 KB |
Output is correct |
| 5 |
Correct |
123 ms |
31520 KB |
Output is correct |
| 6 |
Correct |
21 ms |
31520 KB |
Output is correct |
| 7 |
Correct |
124 ms |
31668 KB |
Output is correct |
| 8 |
Correct |
126 ms |
31668 KB |
Output is correct |
| 9 |
Correct |
137 ms |
31668 KB |
Output is correct |
| 10 |
Correct |
118 ms |
31668 KB |
Output is correct |
| 11 |
Correct |
124 ms |
31668 KB |
Output is correct |
| 12 |
Correct |
125 ms |
31668 KB |
Output is correct |
| 13 |
Correct |
124 ms |
31668 KB |
Output is correct |
| 14 |
Correct |
22 ms |
31668 KB |
Output is correct |
| 15 |
Correct |
122 ms |
31668 KB |
Output is correct |
| 16 |
Correct |
157 ms |
31668 KB |
Output is correct |
| 17 |
Correct |
132 ms |
31668 KB |
Output is correct |
| 18 |
Correct |
159 ms |
31668 KB |
Output is correct |
| 19 |
Correct |
120 ms |
31668 KB |
Output is correct |
| 20 |
Correct |
68 ms |
31668 KB |
Output is correct |
| 21 |
Correct |
136 ms |
31668 KB |
Output is correct |
| 22 |
Correct |
142 ms |
31668 KB |
Output is correct |
| 23 |
Correct |
120 ms |
31668 KB |
Output is correct |
| 24 |
Correct |
122 ms |
31668 KB |
Output is correct |
| 25 |
Correct |
130 ms |
31668 KB |
Output is correct |
| 26 |
Correct |
134 ms |
31668 KB |
Output is correct |
| 27 |
Correct |
118 ms |
31668 KB |
Output is correct |
| 28 |
Correct |
148 ms |
31668 KB |
Output is correct |
| 29 |
Correct |
158 ms |
31668 KB |
Output is correct |
| 30 |
Correct |
187 ms |
31668 KB |
Output is correct |
| 31 |
Correct |
113 ms |
31668 KB |
Output is correct |
| 32 |
Correct |
120 ms |
31668 KB |
Output is correct |
| 33 |
Correct |
6 ms |
31668 KB |
Output is correct |
| 34 |
Correct |
126 ms |
31668 KB |
Output is correct |
| 35 |
Correct |
120 ms |
31668 KB |
Output is correct |
| 36 |
Correct |
123 ms |
31668 KB |
Output is correct |
| 37 |
Correct |
122 ms |
31668 KB |
Output is correct |
| 38 |
Correct |
123 ms |
31668 KB |
Output is correct |
| 39 |
Correct |
134 ms |
31668 KB |
Output is correct |
| 40 |
Correct |
146 ms |
31668 KB |
Output is correct |
| 41 |
Correct |
146 ms |
31668 KB |
Output is correct |
| 42 |
Correct |
133 ms |
31668 KB |
Output is correct |
| 43 |
Correct |
149 ms |
31668 KB |
Output is correct |
| 44 |
Correct |
130 ms |
31668 KB |
Output is correct |
| 45 |
Correct |
136 ms |
31668 KB |
Output is correct |
| 46 |
Correct |
117 ms |
31668 KB |
Output is correct |
| 47 |
Correct |
143 ms |
31668 KB |
Output is correct |
| 48 |
Correct |
139 ms |
31668 KB |
Output is correct |
| 49 |
Correct |
118 ms |
31668 KB |
Output is correct |
| 50 |
Correct |
147 ms |
31668 KB |
Output is correct |
| 51 |
Correct |
134 ms |
31668 KB |
Output is correct |
| 52 |
Correct |
118 ms |
31668 KB |
Output is correct |
| 53 |
Correct |
127 ms |
31668 KB |
Output is correct |
| 54 |
Correct |
134 ms |
31668 KB |
Output is correct |
| 55 |
Correct |
129 ms |
31668 KB |
Output is correct |
| 56 |
Correct |
140 ms |
31668 KB |
Output is correct |
| 57 |
Correct |
132 ms |
31668 KB |
Output is correct |
| 58 |
Correct |
145 ms |
31668 KB |
Output is correct |
| 59 |
Correct |
152 ms |
31668 KB |
Output is correct |
| 60 |
Correct |
140 ms |
31668 KB |
Output is correct |
| 61 |
Correct |
123 ms |
31668 KB |
Output is correct |
| 62 |
Correct |
122 ms |
31668 KB |
Output is correct |
| 63 |
Correct |
132 ms |
31668 KB |
Output is correct |
| 64 |
Correct |
116 ms |
31668 KB |
Output is correct |
| 65 |
Correct |
121 ms |
31668 KB |
Output is correct |
| 66 |
Correct |
114 ms |
31668 KB |
Output is correct |
| 67 |
Correct |
117 ms |
31668 KB |
Output is correct |
| 68 |
Correct |
24 ms |
31668 KB |
Output is correct |
| 69 |
Correct |
123 ms |
31668 KB |
Output is correct |
| 70 |
Correct |
126 ms |
31668 KB |
Output is correct |
| 71 |
Correct |
140 ms |
31668 KB |
Output is correct |
| 72 |
Correct |
115 ms |
31668 KB |
Output is correct |
| 73 |
Correct |
162 ms |
31668 KB |
Output is correct |
| 74 |
Correct |
181 ms |
31668 KB |
Output is correct |
| 75 |
Correct |
134 ms |
31668 KB |
Output is correct |
| 76 |
Correct |
176 ms |
31668 KB |
Output is correct |
| 77 |
Correct |
171 ms |
31668 KB |
Output is correct |
| 78 |
Correct |
117 ms |
31668 KB |
Output is correct |
| 79 |
Correct |
137 ms |
31668 KB |
Output is correct |
| 80 |
Correct |
156 ms |
31668 KB |
Output is correct |
| 81 |
Correct |
136 ms |
31668 KB |
Output is correct |
| 82 |
Correct |
174 ms |
31668 KB |
Output is correct |
| 83 |
Correct |
139 ms |
31668 KB |
Output is correct |
| 84 |
Correct |
165 ms |
31668 KB |
Output is correct |
| 85 |
Correct |
155 ms |
31668 KB |
Output is correct |
| 86 |
Correct |
128 ms |
31668 KB |
Output is correct |
| 87 |
Correct |
123 ms |
31668 KB |
Output is correct |
| 88 |
Correct |
120 ms |
31668 KB |
Output is correct |
| 89 |
Correct |
125 ms |
31668 KB |
Output is correct |
| 90 |
Correct |
118 ms |
31668 KB |
Output is correct |
| 91 |
Correct |
128 ms |
31668 KB |
Output is correct |
| 92 |
Correct |
114 ms |
31668 KB |
Output is correct |
| 93 |
Correct |
126 ms |
31668 KB |
Output is correct |
| 94 |
Correct |
119 ms |
31668 KB |
Output is correct |
| 95 |
Correct |
124 ms |
31668 KB |
Output is correct |
| 96 |
Correct |
128 ms |
31668 KB |
Output is correct |
| 97 |
Correct |
136 ms |
31668 KB |
Output is correct |
