Submission #117557

# Submission time Handle Problem Language Result Execution time Memory
117557 2019-06-16T14:42:56 Z nvmdava The Big Prize (IOI17_prize) C++17
97.38 / 100
72 ms 5256 KB
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
 
vector<int> ask(int i);
 
vector<int> res[200005];
int ans;
int big, nn;
 
vector<int> query(int i){
   if(i == 0)
      return vector<int>({0, big});
   if(i == nn + 1)
      return vector<int>({big, 0});
   return ask(i - 1);
}
 
void find(int l, int r){
   if(ans) return;
   if(res[l][0] == res[r][0]) return;
   int ll, rr, m = (l + r) >> 1;
   res[m] = query(m);
   if(res[m][0] + res[m][1] == big){
      find(l, m);
      find(m, r);
      return;
   }
 
   if(res[m][0] + res[m][1] == 0){
         ans = m;return;
   }
   for(rr = m + 1; rr < r; rr++){
      res[rr] = query(rr);
      if(res[rr][0] + res[rr][1] == big){
         find(rr, r);
         break;
      }
      if(res[rr][0] + res[rr][1] == 0){
         ans = rr;
         return;
      }
   }
   for(ll = m - 1; ll > l; ll--){
      res[ll] = query(ll);
      if(res[ll][0] + res[ll][1] == big){
         find(l, ll);
         break;
      }
      if(res[ll][0] + res[ll][1] == 0){
         ans = ll;
         return;
      }
   }
 
}
 
int find_best(int n) {
   nn = n;
	for(int i = 0; i < 500; i++) {
		vector<int> res = ask(i);
		if(res[0] + res[1] == 0)
			return i;
      big = max(big, res[0] + res[1]);
	}
   res[0] = query(0);
   res[nn + 1] = query(nn + 1);
 
   find(0, nn + 1);
 
	return ans - 1;
}
# Verdict Execution time Memory Grader output
1 Correct 12 ms 4992 KB Output is correct
2 Correct 8 ms 5120 KB Output is correct
3 Correct 8 ms 5120 KB Output is correct
4 Correct 13 ms 4992 KB Output is correct
5 Correct 11 ms 4992 KB Output is correct
6 Correct 6 ms 5016 KB Output is correct
7 Correct 8 ms 5112 KB Output is correct
8 Correct 9 ms 5040 KB Output is correct
9 Correct 7 ms 5112 KB Output is correct
10 Correct 14 ms 4992 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 18 ms 4992 KB Output is correct
2 Correct 8 ms 5120 KB Output is correct
3 Correct 8 ms 5012 KB Output is correct
4 Correct 7 ms 5120 KB Output is correct
5 Correct 10 ms 4992 KB Output is correct
6 Correct 6 ms 5112 KB Output is correct
7 Correct 11 ms 4992 KB Output is correct
8 Correct 8 ms 5112 KB Output is correct
9 Correct 8 ms 5120 KB Output is correct
10 Correct 12 ms 4992 KB Output is correct
11 Correct 13 ms 4992 KB Output is correct
12 Correct 10 ms 4992 KB Output is correct
13 Correct 16 ms 4992 KB Output is correct
14 Correct 14 ms 4992 KB Output is correct
15 Correct 15 ms 5032 KB Output is correct
16 Correct 39 ms 5104 KB Output is correct
17 Correct 9 ms 4992 KB Output is correct
18 Partially correct 64 ms 5152 KB Partially correct - number of queries: 5121
19 Correct 8 ms 5016 KB Output is correct
20 Correct 12 ms 5148 KB Output is correct
21 Correct 41 ms 5032 KB Output is correct
22 Correct 14 ms 4992 KB Output is correct
23 Correct 8 ms 5112 KB Output is correct
24 Correct 8 ms 5004 KB Output is correct
25 Correct 34 ms 5240 KB Output is correct
26 Correct 15 ms 5180 KB Output is correct
27 Correct 7 ms 5100 KB Output is correct
28 Correct 40 ms 5052 KB Output is correct
29 Correct 18 ms 5212 KB Output is correct
30 Partially correct 49 ms 5256 KB Partially correct - number of queries: 5088
31 Correct 10 ms 4912 KB Output is correct
32 Correct 15 ms 4992 KB Output is correct
33 Correct 6 ms 4992 KB Output is correct
34 Correct 12 ms 5156 KB Output is correct
35 Correct 8 ms 5100 KB Output is correct
36 Correct 11 ms 5148 KB Output is correct
37 Correct 8 ms 5120 KB Output is correct
38 Correct 10 ms 4992 KB Output is correct
39 Correct 28 ms 4992 KB Output is correct
40 Correct 22 ms 5236 KB Output is correct
41 Correct 26 ms 5148 KB Output is correct
42 Correct 28 ms 5096 KB Output is correct
43 Correct 31 ms 5008 KB Output is correct
44 Correct 14 ms 5172 KB Output is correct
45 Correct 27 ms 5112 KB Output is correct
46 Correct 9 ms 4992 KB Output is correct
47 Correct 29 ms 5112 KB Output is correct
48 Correct 43 ms 5112 KB Output is correct
49 Correct 8 ms 5040 KB Output is correct
50 Partially correct 45 ms 5240 KB Partially correct - number of queries: 5128
51 Correct 19 ms 4992 KB Output is correct
52 Correct 14 ms 4992 KB Output is correct
53 Correct 8 ms 5120 KB Output is correct
54 Correct 31 ms 5012 KB Output is correct
55 Correct 7 ms 5008 KB Output is correct
56 Partially correct 22 ms 5236 KB Partially correct - number of queries: 5134
57 Correct 36 ms 4992 KB Output is correct
58 Correct 36 ms 4992 KB Output is correct
59 Correct 15 ms 5192 KB Output is correct
60 Correct 38 ms 5112 KB Output is correct
61 Correct 8 ms 5120 KB Output is correct
62 Correct 13 ms 5004 KB Output is correct
63 Correct 8 ms 5120 KB Output is correct
64 Correct 13 ms 4992 KB Output is correct
65 Correct 10 ms 5120 KB Output is correct
66 Correct 14 ms 4992 KB Output is correct
67 Correct 12 ms 5112 KB Output is correct
68 Correct 10 ms 4992 KB Output is correct
69 Correct 12 ms 4992 KB Output is correct
70 Correct 9 ms 5128 KB Output is correct
71 Partially correct 70 ms 5096 KB Partially correct - number of queries: 5259
72 Correct 13 ms 4992 KB Output is correct
73 Partially correct 61 ms 5112 KB Partially correct - number of queries: 5196
74 Partially correct 62 ms 5160 KB Partially correct - number of queries: 5223
75 Correct 13 ms 4992 KB Output is correct
76 Correct 36 ms 5112 KB Output is correct
77 Partially correct 41 ms 5112 KB Partially correct - number of queries: 5198
78 Correct 18 ms 4992 KB Output is correct
79 Correct 26 ms 5112 KB Output is correct
80 Partially correct 64 ms 5124 KB Partially correct - number of queries: 5262
81 Partially correct 67 ms 5068 KB Partially correct - number of queries: 5178
82 Partially correct 72 ms 5048 KB Partially correct - number of queries: 5174
83 Correct 12 ms 4992 KB Output is correct
84 Correct 29 ms 5032 KB Output is correct
85 Partially correct 28 ms 5252 KB Partially correct - number of queries: 5246
86 Correct 15 ms 4992 KB Output is correct
87 Correct 9 ms 4992 KB Output is correct
88 Correct 16 ms 4992 KB Output is correct
89 Correct 16 ms 5116 KB Output is correct
90 Correct 11 ms 4992 KB Output is correct
91 Correct 14 ms 4992 KB Output is correct
92 Correct 15 ms 5112 KB Output is correct
93 Correct 17 ms 5120 KB Output is correct
94 Correct 18 ms 5112 KB Output is correct
95 Correct 14 ms 5100 KB Output is correct
96 Correct 15 ms 5112 KB Output is correct
97 Correct 13 ms 5112 KB Output is correct