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Submission #39897

# Submission time Handle Problem Language Result Execution time Memory
39897 2018-01-23T15:20:17 Z igzi The Big Prize (IOI17_prize) C++14
90 / 100
 39 ms 2020 KB 
#include <bits/stdc++.h>
#include "prize.h"
#define maxN 200002
 
using namespace std;
 
int i,x=0;
vector <int> v,a;
 
int find_best(int n){
    for(i=0;i<n && i<500;i++){
    a=ask(i);
    if(a[0]+a[1]>x) x=a[0]+a[1];
    if(a[0]+a[1]==0) return i;
}
int p=-1;
for(int i=0;i<x;i++){
  int l,d,m;
  l=p+1; d=n-1;
  while(l<d){
    m=(l+d)/2;
    a=ask(m);
    if(a[0]+a[1]==x){
        if(a[0]-v.size()>0) d=m-1;
        else l=m+1;
    }
    else{
        d=m;
    }
  }
  v.push_back(l);
  p=l;
}
for(i=0;i<v.size();i++){
   a=ask(v[i]);
   if(a[0]+a[1]==0) return v[i];
}
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:34:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(i=0;i<v.size();i++){
          ^
prize.cpp:38:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2020 KB Output is correct
2 Correct 0 ms 2020 KB Output is correct
3 Correct 3 ms 2020 KB Output is correct
4 Correct 1 ms 2020 KB Output is correct
5 Correct 3 ms 2020 KB Output is correct
6 Correct 0 ms 2020 KB Output is correct
7 Correct 0 ms 2020 KB Output is correct
8 Correct 9 ms 2020 KB Output is correct
9 Correct 2 ms 2020 KB Output is correct
10 Correct 3 ms 2020 KB Output is correct

Subtask #2
70.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2020 KB Output is correct
2 Correct 0 ms 2020 KB Output is correct
3 Correct 0 ms 2020 KB Output is correct
4 Correct 1 ms 2020 KB Output is correct
5 Correct 2 ms 2020 KB Output is correct
6 Correct 0 ms 2020 KB Output is correct
7 Correct 2 ms 2020 KB Output is correct
8 Correct 5 ms 2020 KB Output is correct
9 Correct 1 ms 2020 KB Output is correct
10 Correct 2 ms 2020 KB Output is correct
11 Correct 1 ms 2020 KB Output is correct
12 Correct 2 ms 2020 KB Output is correct
13 Correct 1 ms 2020 KB Output is correct
14 Correct 8 ms 2020 KB Output is correct
15 Partially correct 15 ms 2020 KB Partially correct - number of queries: 7552
16 Partially correct 18 ms 2020 KB Partially correct - number of queries: 8261
17 Correct 4 ms 2020 KB Output is correct
18 Partially correct 15 ms 2020 KB Partially correct - number of queries: 8352
19 Correct 0 ms 2020 KB Output is correct
20 Partially correct 19 ms 2020 KB Partially correct - number of queries: 5356
21 Partially correct 14 ms 2020 KB Partially correct - number of queries: 7987
22 Partially correct 23 ms 2020 KB Partially correct - number of queries: 5972
23 Correct 2 ms 2020 KB Output is correct
24 Correct 5 ms 2020 KB Output is correct
25 Partially correct 9 ms 2020 KB Partially correct - number of queries: 8123
26 Partially correct 25 ms 2020 KB Partially correct - number of queries: 8115
27 Correct 7 ms 2020 KB Output is correct
28 Partially correct 21 ms 2020 KB Partially correct - number of queries: 8231
29 Partially correct 21 ms 2020 KB Partially correct - number of queries: 6783
30 Partially correct 24 ms 2020 KB Partially correct - number of queries: 8279
31 Correct 0 ms 2020 KB Output is correct
32 Correct 11 ms 2020 KB Output is correct
33 Correct 0 ms 2020 KB Output is correct
34 Partially correct 23 ms 2020 KB Partially correct - number of queries: 8021
35 Correct 0 ms 2020 KB Output is correct
36 Partially correct 31 ms 2020 KB Partially correct - number of queries: 7930
37 Correct 7 ms 2020 KB Output is correct
38 Correct 5 ms 2020 KB Output is correct
39 Partially correct 14 ms 2020 KB Partially correct - number of queries: 8025
40 Partially correct 18 ms 2020 KB Partially correct - number of queries: 7146
41 Partially correct 15 ms 2020 KB Partially correct - number of queries: 8156
42 Partially correct 21 ms 2020 KB Partially correct - number of queries: 8156
43 Partially correct 20 ms 2020 KB Partially correct - number of queries: 7874
44 Partially correct 10 ms 2020 KB Partially correct - number of queries: 8060
45 Partially correct 12 ms 2020 KB Partially correct - number of queries: 8057
46 Correct 0 ms 2020 KB Output is correct
47 Partially correct 28 ms 2020 KB Partially correct - number of queries: 8151
48 Partially correct 19 ms 2020 KB Partially correct - number of queries: 8217
49 Partially correct 3 ms 2020 KB Partially correct - number of queries: 7916
50 Partially correct 13 ms 2020 KB Partially correct - number of queries: 8354
51 Partially correct 18 ms 2020 KB Partially correct - number of queries: 8070
52 Partially correct 7 ms 2020 KB Partially correct - number of queries: 7869
53 Correct 5 ms 2020 KB Output is correct
54 Partially correct 24 ms 2020 KB Partially correct - number of queries: 8012
55 Correct 2 ms 2020 KB Output is correct
56 Partially correct 21 ms 2020 KB Partially correct - number of queries: 8343
57 Partially correct 21 ms 2020 KB Partially correct - number of queries: 8143
58 Partially correct 20 ms 2020 KB Partially correct - number of queries: 8224
59 Partially correct 8 ms 2020 KB Partially correct - number of queries: 8158
60 Partially correct 33 ms 2020 KB Partially correct - number of queries: 8055
61 Correct 1 ms 2020 KB Output is correct
62 Correct 5 ms 2020 KB Output is correct
63 Correct 4 ms 2020 KB Output is correct
64 Correct 0 ms 2020 KB Output is correct
65 Correct 3 ms 2020 KB Output is correct
66 Correct 1 ms 2020 KB Output is correct
67 Correct 20 ms 2020 KB Output is correct
68 Correct 2 ms 2020 KB Output is correct
69 Correct 22 ms 2020 KB Output is correct
70 Correct 10 ms 2020 KB Output is correct
71 Partially correct 11 ms 2020 KB Partially correct - number of queries: 8301
72 Correct 9 ms 2020 KB Output is correct
73 Partially correct 31 ms 2020 KB Partially correct - number of queries: 8184
74 Partially correct 19 ms 2020 KB Partially correct - number of queries: 8256
75 Correct 0 ms 2020 KB Output is correct
76 Partially correct 22 ms 2020 KB Partially correct - number of queries: 7141
77 Partially correct 8 ms 2020 KB Partially correct - number of queries: 8330
78 Correct 6 ms 2020 KB Output is correct
79 Correct 4 ms 2020 KB Output is correct
80 Partially correct 11 ms 2020 KB Partially correct - number of queries: 8371
81 Partially correct 30 ms 2020 KB Partially correct - number of queries: 8365
82 Partially correct 12 ms 2020 KB Partially correct - number of queries: 8298
83 Correct 8 ms 2020 KB Output is correct
84 Partially correct 7 ms 2020 KB Partially correct - number of queries: 6916
85 Partially correct 13 ms 2020 KB Partially correct - number of queries: 8397
86 Partially correct 30 ms 2020 KB Partially correct - number of queries: 9465
87 Correct 4 ms 2020 KB Output is correct
88 Partially correct 17 ms 2020 KB Partially correct - number of queries: 8952
89 Partially correct 28 ms 2020 KB Partially correct - number of queries: 9389
90 Correct 2 ms 2020 KB Output is correct
91 Partially correct 11 ms 2020 KB Partially correct - number of queries: 5665
92 Partially correct 20 ms 2020 KB Partially correct - number of queries: 8990
93 Partially correct 24 ms 2020 KB Partially correct - number of queries: 9417
94 Partially correct 18 ms 2020 KB Partially correct - number of queries: 9421
95 Partially correct 30 ms 2020 KB Partially correct - number of queries: 9404
96 Partially correct 39 ms 2020 KB Partially correct - number of queries: 9337
97 Partially correct 12 ms 2020 KB Partially correct - number of queries: 8990