//by szh
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pii pair<int,int>
#define pll pair<long long,long long>
#define pb push_back
#define debug(x) cerr<<#x<<"="<<x<<endl
#define pq priority_queue
#define inf 0x3f
#define rep(i,a,b) for (int i=a;i<(b);i++)
#define MP make_pair
#define SZ(x) (int(x.size()))
#define ll long long
#define mod 1000000007
#define ALL(x) x.begin(),x.end()
void inc(int &a,int b) {a=(a+b)%mod;}
void dec(int &a,int b) {a=(a-b+mod)%mod;}
int lowbit(int x) {return x&(-x);}
ll p0w(ll base,ll p) {ll ret=1;while(p>0){if (p%2ll==1ll) ret=ret*base%mod;base=base*base%mod;p/=2ll;}return ret;}
#include "prize.h"
const int maxn = 2e5+10;
int ans;
set <int> pos;
vector <int> val;
int sum;
void solve(int l,int r,int pre,int suf) {
if (l>r) return;
int midl = l+r>>1;
int midr = midl;
vector <int> tmp = {-1,-1};
int mid;
while (midl>=l) {
tmp = ask(midl);
if (tmp[0]+tmp[1]==sum) break;
if (tmp[0]+tmp[1]==0) {
ans = midl;
return;
}
pos.insert(midl);
midl--;
}
if (midl<l) {
midr++;
while (midr<=r) {
tmp = ask(midr);
if (tmp[0]+tmp[1]==sum) break;
if (tmp[0]+tmp[1]==0) {
ans = midr;
return;
}
pos.insert(midr);
midr++;
}
mid=midr;
}
else mid=midl;
if (mid>r) return;
if (tmp[0]-pre>0) solve(l,midl-1,pre,tmp[1]);
if (tmp[1]-suf>0) solve(midr+1,r,tmp[0],suf);
return;
}
int find_best(int n) {
rep(i,0,472) {
vector <int> tmp = ask(i);
if (tmp[0]+tmp[1]==0) return i;
val.pb(tmp[0]+tmp[1]);
}
sort(ALL(val));val.erase(unique(ALL(val)),val.end());
sum=val.back();
solve(472,n-1,0,0);
return ans;
}
Compilation message
prize.cpp: In function 'void solve(int, int, int, int)':
prize.cpp:34:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
34 | int midl = l+r>>1;
| ~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
292 KB |
Output is correct |
| 2 |
Correct |
5 ms |
208 KB |
Output is correct |
| 3 |
Correct |
3 ms |
208 KB |
Output is correct |
| 4 |
Correct |
4 ms |
208 KB |
Output is correct |
| 5 |
Correct |
5 ms |
292 KB |
Output is correct |
| 6 |
Correct |
0 ms |
292 KB |
Output is correct |
| 7 |
Correct |
5 ms |
208 KB |
Output is correct |
| 8 |
Correct |
3 ms |
300 KB |
Output is correct |
| 9 |
Correct |
6 ms |
284 KB |
Output is correct |
| 10 |
Correct |
6 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
336 KB |
Output is correct |
| 2 |
Correct |
6 ms |
288 KB |
Output is correct |
| 3 |
Correct |
6 ms |
288 KB |
Output is correct |
| 4 |
Correct |
5 ms |
292 KB |
Output is correct |
| 5 |
Correct |
5 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
5 ms |
208 KB |
Output is correct |
| 8 |
Correct |
4 ms |
292 KB |
Output is correct |
| 9 |
Correct |
4 ms |
208 KB |
Output is correct |
| 10 |
Correct |
5 ms |
296 KB |
Output is correct |
| 11 |
Correct |
9 ms |
208 KB |
Output is correct |
| 12 |
Correct |
4 ms |
300 KB |
Output is correct |
| 13 |
Correct |
9 ms |
208 KB |
Output is correct |
| 14 |
Correct |
10 ms |
208 KB |
Output is correct |
| 15 |
Partially correct |
42 ms |
356 KB |
Partially correct - number of queries: 5011 |
| 16 |
Partially correct |
22 ms |
304 KB |
Partially correct - number of queries: 5243 |
| 17 |
Correct |
4 ms |
208 KB |
Output is correct |
| 18 |
Partially correct |
49 ms |
296 KB |
Partially correct - number of queries: 5247 |
| 19 |
Correct |
5 ms |
208 KB |
Output is correct |
| 20 |
Correct |
28 ms |
288 KB |
Output is correct |
| 21 |
Partially correct |
53 ms |
304 KB |
Partially correct - number of queries: 5212 |
| 22 |
Correct |
37 ms |
208 KB |
Output is correct |
| 23 |
Correct |
5 ms |
272 KB |
Output is correct |
| 24 |
Correct |
10 ms |
280 KB |
Output is correct |
| 25 |
Correct |
48 ms |
284 KB |
Output is correct |
| 26 |
Correct |
49 ms |
288 KB |
Output is correct |
| 27 |
Correct |
7 ms |
208 KB |
Output is correct |
| 28 |
Correct |
38 ms |
308 KB |
Output is correct |
| 29 |
Correct |
41 ms |
300 KB |
Output is correct |
| 30 |
Partially correct |
56 ms |
336 KB |
Partially correct - number of queries: 5206 |
| 31 |
Correct |
3 ms |
288 KB |
Output is correct |
| 32 |
Correct |
4 ms |
344 KB |
Output is correct |
| 33 |
Correct |
0 ms |
208 KB |
Output is correct |
| 34 |
Partially correct |
44 ms |
296 KB |
Partially correct - number of queries: 5234 |
| 35 |
Correct |
6 ms |
208 KB |
Output is correct |
| 36 |
Partially correct |
40 ms |
304 KB |
Partially correct - number of queries: 5203 |
| 37 |
Correct |
8 ms |
292 KB |
Output is correct |
| 38 |
Correct |
5 ms |
288 KB |
Output is correct |
| 39 |
Partially correct |
52 ms |
208 KB |
Partially correct - number of queries: 5211 |
| 40 |
Correct |
37 ms |
300 KB |
Output is correct |
| 41 |
Partially correct |
47 ms |
344 KB |
Partially correct - number of queries: 5245 |
| 42 |
Partially correct |
47 ms |
308 KB |
Partially correct - number of queries: 5245 |
| 43 |
Partially correct |
46 ms |
428 KB |
Partially correct - number of queries: 5109 |
| 44 |
Partially correct |
52 ms |
412 KB |
Partially correct - number of queries: 5240 |
| 45 |
Correct |
45 ms |
292 KB |
Output is correct |
| 46 |
Correct |
4 ms |
208 KB |
Output is correct |
| 47 |
Correct |
46 ms |
288 KB |
Output is correct |
| 48 |
Partially correct |
23 ms |
304 KB |
Partially correct - number of queries: 5242 |
| 49 |
Partially correct |
48 ms |
288 KB |
Partially correct - number of queries: 5241 |
| 50 |
Partially correct |
38 ms |
296 KB |
Partially correct - number of queries: 5242 |
| 51 |
Partially correct |
49 ms |
300 KB |
Partially correct - number of queries: 5237 |
| 52 |
Partially correct |
42 ms |
280 KB |
Partially correct - number of queries: 5240 |
| 53 |
Correct |
6 ms |
208 KB |
Output is correct |
| 54 |
Partially correct |
44 ms |
288 KB |
Partially correct - number of queries: 5206 |
| 55 |
Correct |
4 ms |
272 KB |
Output is correct |
| 56 |
Partially correct |
43 ms |
296 KB |
Partially correct - number of queries: 5242 |
| 57 |
Partially correct |
46 ms |
292 KB |
Partially correct - number of queries: 5208 |
| 58 |
Partially correct |
45 ms |
412 KB |
Partially correct - number of queries: 5242 |
| 59 |
Partially correct |
52 ms |
304 KB |
Partially correct - number of queries: 5245 |
| 60 |
Partially correct |
53 ms |
340 KB |
Partially correct - number of queries: 5203 |
| 61 |
Correct |
4 ms |
208 KB |
Output is correct |
| 62 |
Correct |
6 ms |
288 KB |
Output is correct |
| 63 |
Correct |
4 ms |
208 KB |
Output is correct |
| 64 |
Correct |
8 ms |
284 KB |
Output is correct |
| 65 |
Correct |
6 ms |
292 KB |
Output is correct |
| 66 |
Correct |
11 ms |
208 KB |
Output is correct |
| 67 |
Correct |
4 ms |
284 KB |
Output is correct |
| 68 |
Correct |
2 ms |
296 KB |
Output is correct |
| 69 |
Correct |
9 ms |
208 KB |
Output is correct |
| 70 |
Correct |
6 ms |
208 KB |
Output is correct |
| 71 |
Partially correct |
41 ms |
328 KB |
Partially correct - number of queries: 5231 |
| 72 |
Correct |
9 ms |
208 KB |
Output is correct |
| 73 |
Partially correct |
44 ms |
300 KB |
Partially correct - number of queries: 5168 |
| 74 |
Partially correct |
50 ms |
292 KB |
Partially correct - number of queries: 5195 |
| 75 |
Correct |
7 ms |
208 KB |
Output is correct |
| 76 |
Correct |
36 ms |
292 KB |
Output is correct |
| 77 |
Partially correct |
50 ms |
292 KB |
Partially correct - number of queries: 5392 |
| 78 |
Correct |
9 ms |
208 KB |
Output is correct |
| 79 |
Correct |
30 ms |
208 KB |
Output is correct |
| 80 |
Partially correct |
45 ms |
304 KB |
Partially correct - number of queries: 5411 |
| 81 |
Partially correct |
23 ms |
304 KB |
Partially correct - number of queries: 5401 |
| 82 |
Partially correct |
43 ms |
368 KB |
Partially correct - number of queries: 5369 |
| 83 |
Correct |
5 ms |
300 KB |
Output is correct |
| 84 |
Correct |
41 ms |
296 KB |
Output is correct |
| 85 |
Partially correct |
47 ms |
304 KB |
Partially correct - number of queries: 5403 |
| 86 |
Correct |
5 ms |
208 KB |
Output is correct |
| 87 |
Correct |
6 ms |
208 KB |
Output is correct |
| 88 |
Correct |
5 ms |
292 KB |
Output is correct |
| 89 |
Correct |
5 ms |
208 KB |
Output is correct |
| 90 |
Correct |
4 ms |
208 KB |
Output is correct |
| 91 |
Correct |
6 ms |
208 KB |
Output is correct |
| 92 |
Correct |
4 ms |
208 KB |
Output is correct |
| 93 |
Correct |
7 ms |
208 KB |
Output is correct |
| 94 |
Correct |
9 ms |
208 KB |
Output is correct |
| 95 |
Correct |
9 ms |
208 KB |
Output is correct |
| 96 |
Correct |
8 ms |
208 KB |
Output is correct |
| 97 |
Correct |
4 ms |
300 KB |
Output is correct |
