| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 95224 |
2019-01-28T17:09:16 Z |
MvC |
The Big Prize (IOI17_prize) |
C++11 |
|
130 ms |
14668 KB |
#include "prize.h"
#include<bits/stdc++.h>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;
int m, res;
bool flag = false;
vector<int> mem[200005];
vector<int> qr(int x){
if(mem[x].size() == 0) mem[x] = ask(x);
return mem[x];
}
void solve(int l, int r, int num, int bef){
if(num == 0) return;
if(l > r) return;
int mid = (l+r)/2;
vector<int> resp = qr(mid);
if(resp[0]+resp[1] == 0){
res = mid;
flag = true;
return;
}
int b = mid;
while(resp[0]+resp[1] != m && b < r){
b++;
resp = qr(b);
if(resp[0]+resp[1] == 0){
res = b;
flag = true;
return;
}
}
if(resp[0]+resp[1] == m){
solve(b+1, r, num-(resp[0]-bef), resp[0]);
if(flag) return;
solve(l, mid-1, resp[0]-(b-mid)-bef, bef);
if(flag) return;
} else{
solve(l, mid-1, num, bef);
}
return;
}
int find_best(int n) {
srand(time(0));
if(n <= 5000){
for(int i=0; i<n; i++){
vector<int> resp = qr(i);
if(resp[0]+resp[1] == 0) return i;
}
}
vector<int> resp;
set<int> s;
vector<int>vc;
set<int>ss;
for(int i=0;i<n;i++)ss.insert(i);
int x=0;
while(x<600){
int i = rand()%n;
if(ss.find(i)!=ss.end())
{
x++;
ss.erase(ss.find(i));
}
else continue;
resp = qr(i);
if(resp[0]+resp[1] == 0) return i;
s.insert(resp[0]+resp[1]);
m = max(m, resp[0]+resp[1]);
if(s.size() == 4) break;
}
solve(0, n-1, m, 0);
return res;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
61 ms |
14328 KB |
Output is correct |
| 2 |
Correct |
62 ms |
14328 KB |
Output is correct |
| 3 |
Correct |
60 ms |
14424 KB |
Output is correct |
| 4 |
Correct |
62 ms |
14376 KB |
Output is correct |
| 5 |
Correct |
59 ms |
14520 KB |
Output is correct |
| 6 |
Correct |
63 ms |
14328 KB |
Output is correct |
| 7 |
Correct |
61 ms |
14316 KB |
Output is correct |
| 8 |
Correct |
130 ms |
14496 KB |
Output is correct |
| 9 |
Correct |
65 ms |
14328 KB |
Output is correct |
| 10 |
Correct |
58 ms |
14424 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
60 ms |
14532 KB |
Output is correct |
| 2 |
Correct |
64 ms |
14532 KB |
Output is correct |
| 3 |
Correct |
59 ms |
14528 KB |
Output is correct |
| 4 |
Correct |
63 ms |
14472 KB |
Output is correct |
| 5 |
Correct |
70 ms |
14356 KB |
Output is correct |
| 6 |
Correct |
64 ms |
14432 KB |
Output is correct |
| 7 |
Correct |
67 ms |
14312 KB |
Output is correct |
| 8 |
Correct |
69 ms |
14456 KB |
Output is correct |
| 9 |
Correct |
68 ms |
14328 KB |
Output is correct |
| 10 |
Correct |
65 ms |
14424 KB |
Output is correct |
| 11 |
Correct |
64 ms |
14532 KB |
Output is correct |
| 12 |
Correct |
65 ms |
14376 KB |
Output is correct |
| 13 |
Correct |
68 ms |
14416 KB |
Output is correct |
| 14 |
Correct |
23 ms |
6008 KB |
Output is correct |
| 15 |
Correct |
83 ms |
14496 KB |
Output is correct |
| 16 |
Correct |
73 ms |
14440 KB |
Output is correct |
| 17 |
Partially correct |
107 ms |
14504 KB |
Partially correct - number of queries: 5046 |
| 18 |
Correct |
66 ms |
14476 KB |
Output is correct |
| 19 |
Correct |
104 ms |
14636 KB |
Output is correct |
| 20 |
Correct |
51 ms |
9720 KB |
Output is correct |
| 21 |
Correct |
86 ms |
14496 KB |
Output is correct |
| 22 |
Correct |
91 ms |
14456 KB |
Output is correct |
| 23 |
Correct |
66 ms |
14524 KB |
Output is correct |
| 24 |
Correct |
61 ms |
14508 KB |
Output is correct |
| 25 |
Correct |
87 ms |
14460 KB |
Output is correct |
| 26 |
Correct |
83 ms |
14456 KB |
Output is correct |
| 27 |
Correct |
70 ms |
14432 KB |
Output is correct |
| 28 |
Correct |
68 ms |
14328 KB |
Output is correct |
| 29 |
Correct |
65 ms |
14428 KB |
Output is correct |
| 30 |
Correct |
67 ms |
14352 KB |
Output is correct |
| 31 |
Partially correct |
113 ms |
14516 KB |
Partially correct - number of queries: 5026 |
| 32 |
Correct |
72 ms |
14492 KB |
Output is correct |
| 33 |
Correct |
6 ms |
4984 KB |
Output is correct |
| 34 |
Correct |
96 ms |
14556 KB |
Output is correct |
| 35 |
Correct |
62 ms |
14380 KB |
Output is correct |
| 36 |
Correct |
88 ms |
14544 KB |
Output is correct |
| 37 |
Correct |
68 ms |
14448 KB |
Output is correct |
| 38 |
Correct |
64 ms |
14532 KB |
Output is correct |
| 39 |
Correct |
88 ms |
14376 KB |
Output is correct |
| 40 |
Correct |
62 ms |
14432 KB |
Output is correct |
| 41 |
Correct |
72 ms |
14564 KB |
Output is correct |
| 42 |
Correct |
79 ms |
14380 KB |
Output is correct |
| 43 |
Correct |
79 ms |
14564 KB |
Output is correct |
| 44 |
Correct |
95 ms |
14580 KB |
Output is correct |
| 45 |
Correct |
73 ms |
14488 KB |
Output is correct |
| 46 |
Partially correct |
94 ms |
14668 KB |
Partially correct - number of queries: 5057 |
| 47 |
Correct |
69 ms |
14584 KB |
Output is correct |
| 48 |
Correct |
79 ms |
14412 KB |
Output is correct |
| 49 |
Correct |
82 ms |
14548 KB |
Output is correct |
| 50 |
Correct |
66 ms |
14348 KB |
Output is correct |
| 51 |
Correct |
83 ms |
14492 KB |
Output is correct |
| 52 |
Partially correct |
103 ms |
14536 KB |
Partially correct - number of queries: 5026 |
| 53 |
Correct |
59 ms |
14456 KB |
Output is correct |
| 54 |
Correct |
90 ms |
14456 KB |
Output is correct |
| 55 |
Partially correct |
120 ms |
14528 KB |
Partially correct - number of queries: 5056 |
| 56 |
Correct |
67 ms |
14328 KB |
Output is correct |
| 57 |
Correct |
82 ms |
14448 KB |
Output is correct |
| 58 |
Correct |
84 ms |
14456 KB |
Output is correct |
| 59 |
Correct |
81 ms |
14456 KB |
Output is correct |
| 60 |
Correct |
84 ms |
14440 KB |
Output is correct |
| 61 |
Correct |
72 ms |
14328 KB |
Output is correct |
| 62 |
Correct |
66 ms |
14376 KB |
Output is correct |
| 63 |
Correct |
62 ms |
14328 KB |
Output is correct |
| 64 |
Correct |
60 ms |
14500 KB |
Output is correct |
| 65 |
Correct |
65 ms |
14468 KB |
Output is correct |
| 66 |
Correct |
68 ms |
14420 KB |
Output is correct |
| 67 |
Correct |
67 ms |
14328 KB |
Output is correct |
| 68 |
Correct |
72 ms |
14328 KB |
Output is correct |
| 69 |
Correct |
64 ms |
14528 KB |
Output is correct |
| 70 |
Correct |
72 ms |
14436 KB |
Output is correct |
| 71 |
Partially correct |
108 ms |
14456 KB |
Partially correct - number of queries: 5326 |
| 72 |
Correct |
74 ms |
14328 KB |
Output is correct |
| 73 |
Partially correct |
102 ms |
14636 KB |
Partially correct - number of queries: 5265 |
| 74 |
Partially correct |
110 ms |
14504 KB |
Partially correct - number of queries: 5291 |
| 75 |
Correct |
63 ms |
14452 KB |
Output is correct |
| 76 |
Correct |
96 ms |
14492 KB |
Output is correct |
| 77 |
Partially correct |
107 ms |
14488 KB |
Partially correct - number of queries: 5036 |
| 78 |
Correct |
76 ms |
14376 KB |
Output is correct |
| 79 |
Correct |
83 ms |
14456 KB |
Output is correct |
| 80 |
Partially correct |
99 ms |
14584 KB |
Partially correct - number of queries: 5021 |
| 81 |
Partially correct |
116 ms |
14456 KB |
Partially correct - number of queries: 5070 |
| 82 |
Correct |
104 ms |
14540 KB |
Output is correct |
| 83 |
Correct |
86 ms |
14432 KB |
Output is correct |
| 84 |
Correct |
116 ms |
14416 KB |
Output is correct |
| 85 |
Partially correct |
115 ms |
14456 KB |
Partially correct - number of queries: 5047 |
| 86 |
Correct |
66 ms |
14512 KB |
Output is correct |
| 87 |
Correct |
58 ms |
14516 KB |
Output is correct |
| 88 |
Correct |
75 ms |
14352 KB |
Output is correct |
| 89 |
Correct |
74 ms |
14328 KB |
Output is correct |
| 90 |
Correct |
58 ms |
14408 KB |
Output is correct |
| 91 |
Correct |
60 ms |
14416 KB |
Output is correct |
| 92 |
Correct |
63 ms |
14464 KB |
Output is correct |
| 93 |
Correct |
95 ms |
14624 KB |
Output is correct |
| 94 |
Correct |
94 ms |
14456 KB |
Output is correct |
| 95 |
Correct |
99 ms |
14452 KB |
Output is correct |
| 96 |
Correct |
78 ms |
14524 KB |
Output is correct |
| 97 |
Correct |
58 ms |
14444 KB |
Output is correct |
