oj.uz

Submission #89174

# Submission time Handle Problem Language Result Execution time Memory
89174 2018-12-10T21:20:31 Z igzi The Big Prize (IOI17_prize) C++17
92.57 / 100
 93 ms 5564 KB 
#include <bits/stdc++.h>
#include "prize.h"
#define maxN 200002
 
using namespace std;
 
int i,x=0;
vector <int> v,a[maxN];
vector <int> u,q;
 
int find_best(int n){
    for(i=0;i<n && i<500;i++){
    if(a[i].empty()) a[i]=ask(i);
    if(a[i][0]+a[i][1]>x) x=a[i][0]+a[i][1];
    if(a[i][0]+a[i][1]==0) return i;
}
if(n>1000){
for(i=0;i<1000;i++){
if(a[i*(n/1000)].empty()) a[i*(n/1000)]=ask(i*(n/1000));
if(a[i*(n/1000)][0]+a[i*(n/1000)][1]==x) {u.push_back(a[i*(n/1000)][0]); q.push_back(i*(n/1000));}
}
}
u.push_back(n);
q.push_back(n);
int p=-1;
for(int i=0;i<x;i++){
  int l,d,m,tmp;
  tmp=lower_bound(u.begin(),u.end(),v.size()+1)-u.begin();
  l=p+1; d=q[tmp];
  while(l<d){
    m=(l+d)/2;
    if(a[m].empty()) a[m]=ask(m);
    if(a[m][0]+a[m][1]==x){
        if(a[m][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++){
   if(a[v[i]].empty()) a[v[i]]=ask(v[i]);
   if(a[v[i]][0]+a[v[i]][1]==0) return v[i];
}
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:44:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(i=0;i<v.size();i++){
         ~^~~~~~~~~
prize.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 4984 KB Output is correct
2 Correct 12 ms 5144 KB Output is correct
3 Correct 19 ms 5268 KB Output is correct
4 Correct 19 ms 5268 KB Output is correct
5 Correct 13 ms 5268 KB Output is correct
6 Correct 6 ms 5268 KB Output is correct
7 Correct 12 ms 5268 KB Output is correct
8 Correct 23 ms 5268 KB Output is correct
9 Correct 13 ms 5292 KB Output is correct
10 Correct 21 ms 5360 KB Output is correct

Subtask #2
72.57 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 5360 KB Output is correct
2 Correct 21 ms 5360 KB Output is correct
3 Correct 22 ms 5360 KB Output is correct
4 Correct 13 ms 5360 KB Output is correct
5 Correct 25 ms 5360 KB Output is correct
6 Correct 6 ms 5360 KB Output is correct
7 Correct 23 ms 5360 KB Output is correct
8 Correct 21 ms 5360 KB Output is correct
9 Correct 15 ms 5360 KB Output is correct
10 Correct 21 ms 5360 KB Output is correct
11 Correct 25 ms 5360 KB Output is correct
12 Correct 25 ms 5360 KB Output is correct
13 Correct 27 ms 5360 KB Output is correct
14 Correct 34 ms 5360 KB Output is correct
15 Partially correct 53 ms 5380 KB Partially correct - number of queries: 5333
16 Partially correct 32 ms 5452 KB Partially correct - number of queries: 5669
17 Correct 10 ms 5452 KB Output is correct
18 Partially correct 66 ms 5484 KB Partially correct - number of queries: 5713
19 Correct 10 ms 5484 KB Output is correct
20 Correct 51 ms 5484 KB Output is correct
21 Partially correct 58 ms 5484 KB Partially correct - number of queries: 5524
22 Correct 26 ms 5484 KB Output is correct
23 Correct 20 ms 5484 KB Output is correct
24 Correct 15 ms 5484 KB Output is correct
25 Partially correct 46 ms 5488 KB Partially correct - number of queries: 5347
26 Partially correct 37 ms 5488 KB Partially correct - number of queries: 5337
27 Correct 22 ms 5488 KB Output is correct
28 Partially correct 45 ms 5544 KB Partially correct - number of queries: 5395
29 Correct 39 ms 5544 KB Output is correct
30 Partially correct 58 ms 5544 KB Partially correct - number of queries: 5670
31 Correct 8 ms 5544 KB Output is correct
32 Correct 15 ms 5544 KB Output is correct
33 Correct 6 ms 5544 KB Output is correct
34 Partially correct 28 ms 5544 KB Partially correct - number of queries: 5544
35 Correct 12 ms 5544 KB Output is correct
36 Partially correct 59 ms 5544 KB Partially correct - number of queries: 5510
37 Correct 28 ms 5544 KB Output is correct
38 Correct 21 ms 5544 KB Output is correct
39 Partially correct 61 ms 5544 KB Partially correct - number of queries: 5547
40 Partially correct 41 ms 5544 KB Partially correct - number of queries: 5147
41 Partially correct 93 ms 5544 KB Partially correct - number of queries: 5612
42 Partially correct 62 ms 5544 KB Partially correct - number of queries: 5612
43 Partially correct 58 ms 5544 KB Partially correct - number of queries: 5492
44 Partially correct 28 ms 5544 KB Partially correct - number of queries: 5563
45 Partially correct 61 ms 5544 KB Partially correct - number of queries: 5342
46 Correct 8 ms 5544 KB Output is correct
47 Partially correct 59 ms 5544 KB Partially correct - number of queries: 5350
48 Partially correct 29 ms 5544 KB Partially correct - number of queries: 5644
49 Partially correct 66 ms 5544 KB Partially correct - number of queries: 5494
50 Partially correct 37 ms 5544 KB Partially correct - number of queries: 5714
51 Partially correct 56 ms 5544 KB Partially correct - number of queries: 5544
52 Partially correct 58 ms 5544 KB Partially correct - number of queries: 5477
53 Correct 22 ms 5544 KB Output is correct
54 Partially correct 49 ms 5544 KB Partially correct - number of queries: 5547
55 Correct 8 ms 5544 KB Output is correct
56 Partially correct 66 ms 5544 KB Partially correct - number of queries: 5709
57 Partially correct 62 ms 5544 KB Partially correct - number of queries: 5622
58 Partially correct 61 ms 5544 KB Partially correct - number of queries: 5621
59 Partially correct 49 ms 5544 KB Partially correct - number of queries: 5596
60 Partially correct 68 ms 5564 KB Partially correct - number of queries: 5564
61 Correct 21 ms 5564 KB Output is correct
62 Correct 13 ms 5564 KB Output is correct
63 Correct 13 ms 5564 KB Output is correct
64 Correct 21 ms 5564 KB Output is correct
65 Correct 20 ms 5564 KB Output is correct
66 Correct 26 ms 5564 KB Output is correct
67 Correct 25 ms 5564 KB Output is correct
68 Correct 10 ms 5564 KB Output is correct
69 Correct 17 ms 5564 KB Output is correct
70 Correct 14 ms 5564 KB Output is correct
71 Partially correct 61 ms 5564 KB Partially correct - number of queries: 5743
72 Correct 29 ms 5564 KB Output is correct
73 Partially correct 62 ms 5564 KB Partially correct - number of queries: 5678
74 Partially correct 55 ms 5564 KB Partially correct - number of queries: 5705
75 Correct 25 ms 5564 KB Output is correct
76 Partially correct 51 ms 5564 KB Partially correct - number of queries: 5098
77 Partially correct 60 ms 5564 KB Partially correct - number of queries: 5651
78 Correct 22 ms 5564 KB Output is correct
79 Correct 34 ms 5564 KB Output is correct
80 Partially correct 45 ms 5564 KB Partially correct - number of queries: 5650
81 Partially correct 49 ms 5564 KB Partially correct - number of queries: 5663
82 Partially correct 55 ms 5564 KB Partially correct - number of queries: 5595
83 Correct 21 ms 5564 KB Output is correct
84 Correct 55 ms 5564 KB Output is correct
85 Partially correct 56 ms 5564 KB Partially correct - number of queries: 5629
86 Correct 20 ms 5564 KB Output is correct
87 Correct 18 ms 5564 KB Output is correct
88 Correct 13 ms 5564 KB Output is correct
89 Correct 23 ms 5564 KB Output is correct
90 Correct 17 ms 5564 KB Output is correct
91 Correct 18 ms 5564 KB Output is correct
92 Correct 22 ms 5564 KB Output is correct
93 Correct 24 ms 5564 KB Output is correct
94 Correct 27 ms 5564 KB Output is correct
95 Correct 14 ms 5564 KB Output is correct
96 Correct 18 ms 5564 KB Output is correct
97 Correct 21 ms 5564 KB Output is correct