oj.uz

Submission #1113397

# Submission time Handle Problem Language Result Execution time Memory
1113397 2024-11-16T14:07:20 Z epicci23 The Big Prize (IOI17_prize) C++17
90 / 100
 149 ms 1824 KB 
#include "bits/stdc++.h"
#include "prize.h"
//#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;
 
int suf = -1;
vector<int> Cache={-1,-1};
map<int,vector<int>> dp;
 
vector<int> Ask(int i){
  if(dp.count(i)) return dp[i];
  return dp[i]=ask(i);
}
 
int ask_all(int l,int r){
  for(int i=l;i<=r;i++){
    vector<int> x = Ask(i);
    if(x[0]+x[1]==0) return i;
    if(x[1]==suf) Cache=x;
    else suf--;
  }
  return -23;
}
 
int Learn(int l,int r){
  if(l>r) return -1;
  if(l==r){
    auto u = Ask(l);
    if(u[0]+u[1]==0) return l;
    if(u[1]==suf) Cache=u;
    else suf--;
    return -1;
  }
  auto X = Ask(r);
  if(X[0]+X[1]==0) return r;
  if(X[1]==suf) return -1;
  int mid = l + (r-l+1)/3;
  auto u = Ask(mid);
  if(u[0]+u[1]==0) return mid;
  if(u[1]==suf) return Learn(mid+1,r);
  int lf = Learn(l,mid-1);
  if(lf!=-1) return lf;
  if(u[1]==suf) Cache=u;
  else suf--;
  return Learn(mid+1,r);
}
 
int find_best(int n){
  if(n<=1000) return ask_all(0,n-1);
  int art=0;
  for(int i=0;i<=500;i++){
  	if(art==5) return Learn(i,n-1);
    vector<int> x = Ask(i);
    if(x[0]+x[1]==0) return i;
    if(x[0]+x[1]>Cache[0]+Cache[1]) art++;
    if(x[0]+x[1]>=Cache[0]+Cache[1]){
      Cache=x;
      suf=Cache[1];
    }
    else suf--;
  }
  return Learn(501,n-1);
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 336 KB Output is correct
2 Correct 9 ms 336 KB Output is correct
3 Correct 9 ms 336 KB Output is correct
4 Correct 9 ms 336 KB Output is correct
5 Correct 7 ms 592 KB Output is correct
6 Correct 1 ms 432 KB Output is correct
7 Correct 8 ms 508 KB Output is correct
8 Correct 9 ms 592 KB Output is correct
9 Correct 9 ms 592 KB Output is correct
10 Correct 9 ms 336 KB Output is correct

Subtask #2
70.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 592 KB Output is correct
2 Correct 9 ms 336 KB Output is correct
3 Correct 9 ms 336 KB Output is correct
4 Correct 7 ms 716 KB Output is correct
5 Correct 9 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 10 ms 444 KB Output is correct
8 Correct 10 ms 336 KB Output is correct
9 Correct 8 ms 336 KB Output is correct
10 Correct 8 ms 616 KB Output is correct
11 Correct 15 ms 604 KB Output is correct
12 Correct 9 ms 592 KB Output is correct
13 Correct 15 ms 336 KB Output is correct
14 Correct 10 ms 336 KB Output is correct
15 Correct 18 ms 504 KB Output is correct
16 Partially correct 86 ms 1824 KB Partially correct - number of queries: 5401
17 Correct 8 ms 336 KB Output is correct
18 Partially correct 125 ms 1580 KB Partially correct - number of queries: 6363
19 Correct 7 ms 456 KB Output is correct
20 Correct 34 ms 500 KB Output is correct
21 Correct 38 ms 868 KB Output is correct
22 Correct 11 ms 336 KB Output is correct
23 Correct 11 ms 336 KB Output is correct
24 Correct 9 ms 504 KB Output is correct
25 Correct 58 ms 1044 KB Output is correct
26 Correct 64 ms 1108 KB Output is correct
27 Correct 10 ms 336 KB Output is correct
28 Partially correct 111 ms 968 KB Partially correct - number of queries: 5589
29 Correct 85 ms 1088 KB Output is correct
30 Partially correct 109 ms 1544 KB Partially correct - number of queries: 6330
31 Correct 7 ms 336 KB Output is correct
32 Correct 15 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 44 ms 736 KB Output is correct
35 Correct 13 ms 592 KB Output is correct
36 Correct 31 ms 584 KB Output is correct
37 Correct 11 ms 336 KB Output is correct
38 Correct 10 ms 336 KB Output is correct
39 Correct 59 ms 584 KB Output is correct
40 Partially correct 103 ms 1448 KB Partially correct - number of queries: 5695
41 Correct 62 ms 976 KB Output is correct
42 Correct 70 ms 1096 KB Output is correct
43 Correct 64 ms 1484 KB Output is correct
44 Correct 48 ms 584 KB Output is correct
45 Correct 37 ms 1096 KB Output is correct
46 Correct 8 ms 336 KB Output is correct
47 Correct 55 ms 936 KB Output is correct
48 Correct 89 ms 980 KB Output is correct
49 Correct 16 ms 512 KB Output is correct
50 Partially correct 110 ms 1280 KB Partially correct - number of queries: 6428
51 Correct 49 ms 1036 KB Output is correct
52 Correct 9 ms 336 KB Output is correct
53 Correct 13 ms 336 KB Output is correct
54 Correct 49 ms 864 KB Output is correct
55 Correct 8 ms 336 KB Output is correct
56 Partially correct 134 ms 1752 KB Partially correct - number of queries: 6456
57 Correct 98 ms 1048 KB Output is correct
58 Correct 87 ms 1044 KB Output is correct
59 Correct 57 ms 720 KB Output is correct
60 Correct 63 ms 892 KB Output is correct
61 Correct 13 ms 724 KB Output is correct
62 Correct 10 ms 848 KB Output is correct
63 Correct 12 ms 336 KB Output is correct
64 Correct 11 ms 1240 KB Output is correct
65 Correct 10 ms 336 KB Output is correct
66 Correct 16 ms 336 KB Output is correct
67 Correct 7 ms 336 KB Output is correct
68 Correct 7 ms 508 KB Output is correct
69 Correct 18 ms 592 KB Output is correct
70 Correct 9 ms 336 KB Output is correct
71 Partially correct 138 ms 1636 KB Partially correct - number of queries: 7481
72 Correct 20 ms 504 KB Output is correct
73 Partially correct 146 ms 1308 KB Partially correct - number of queries: 7395
74 Partially correct 149 ms 1528 KB Partially correct - number of queries: 7433
75 Correct 13 ms 592 KB Output is correct
76 Partially correct 121 ms 1540 KB Partially correct - number of queries: 6577
77 Partially correct 140 ms 1260 KB Partially correct - number of queries: 6929
78 Correct 14 ms 336 KB Output is correct
79 Correct 77 ms 996 KB Output is correct
80 Partially correct 129 ms 1704 KB Partially correct - number of queries: 6913
81 Partially correct 146 ms 1664 KB Partially correct - number of queries: 6899
82 Partially correct 136 ms 1440 KB Partially correct - number of queries: 6821
83 Correct 11 ms 336 KB Output is correct
84 Partially correct 101 ms 1172 KB Partially correct - number of queries: 5842
85 Partially correct 145 ms 1228 KB Partially correct - number of queries: 6898
86 Correct 8 ms 624 KB Output is correct
87 Correct 10 ms 336 KB Output is correct
88 Correct 6 ms 336 KB Output is correct
89 Correct 8 ms 592 KB Output is correct
90 Correct 7 ms 336 KB Output is correct
91 Correct 10 ms 504 KB Output is correct
92 Correct 11 ms 592 KB Output is correct
93 Correct 19 ms 744 KB Output is correct
94 Correct 16 ms 336 KB Output is correct
95 Correct 19 ms 592 KB Output is correct
96 Correct 14 ms 748 KB Output is correct
97 Correct 10 ms 336 KB Output is correct