Submission #89262

# Submission time Handle Problem Language Result Execution time Memory
89262 2018-12-11T07:53:12 Z igzi The Big Prize (IOI17_prize) C++17
94.57 / 100
68 ms 5564 KB
#include <bits/stdc++.h>
#define D 400
#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<min(500,n);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>D){
for(i=0;i<min(500,n);i++){
    if(a[i][0]+a[i][1]==x) {u.push_back(a[i][0]); q.push_back(i);}
    else v.push_back(i);
}
for(i=0;i<D;i++){
if(a[i*(n/D)].empty()) a[i*(n/D)]=ask(i*(n/D));
if(a[i*(n/D)][0]+a[i*(n/D)][1]==x) {u.push_back(a[i*(n/D)][0]); q.push_back(i*(n/D));}
}
}
u.push_back(n);
q.push_back(n);
int p=-1;
if(v.size()) p=v.back();
for(int i=v.size();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:50:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(i=0;i<v.size();i++){
         ~^~~~~~~~~
prize.cpp:54:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
# Verdict Execution time Memory Grader output
1 Correct 17 ms 4984 KB Output is correct
2 Correct 16 ms 5188 KB Output is correct
3 Correct 14 ms 5188 KB Output is correct
4 Correct 16 ms 5268 KB Output is correct
5 Correct 15 ms 5268 KB Output is correct
6 Correct 6 ms 5268 KB Output is correct
7 Correct 15 ms 5268 KB Output is correct
8 Correct 15 ms 5288 KB Output is correct
9 Correct 11 ms 5340 KB Output is correct
10 Correct 14 ms 5340 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 15 ms 5340 KB Output is correct
2 Correct 19 ms 5340 KB Output is correct
3 Correct 10 ms 5340 KB Output is correct
4 Correct 10 ms 5340 KB Output is correct
5 Correct 11 ms 5344 KB Output is correct
6 Correct 6 ms 5344 KB Output is correct
7 Correct 16 ms 5344 KB Output is correct
8 Correct 10 ms 5344 KB Output is correct
9 Correct 14 ms 5344 KB Output is correct
10 Correct 16 ms 5344 KB Output is correct
11 Correct 11 ms 5360 KB Output is correct
12 Correct 17 ms 5360 KB Output is correct
13 Correct 12 ms 5360 KB Output is correct
14 Correct 25 ms 5360 KB Output is correct
15 Correct 54 ms 5404 KB Output is correct
16 Partially correct 52 ms 5436 KB Partially correct - number of queries: 5199
17 Correct 10 ms 5436 KB Output is correct
18 Partially correct 41 ms 5436 KB Partially correct - number of queries: 5232
19 Correct 8 ms 5436 KB Output is correct
20 Correct 39 ms 5444 KB Output is correct
21 Partially correct 54 ms 5444 KB Partially correct - number of queries: 5062
22 Correct 34 ms 5444 KB Output is correct
23 Correct 17 ms 5444 KB Output is correct
24 Correct 22 ms 5444 KB Output is correct
25 Correct 42 ms 5444 KB Output is correct
26 Correct 25 ms 5476 KB Output is correct
27 Correct 15 ms 5476 KB Output is correct
28 Partially correct 68 ms 5476 KB Partially correct - number of queries: 5056
29 Correct 44 ms 5476 KB Output is correct
30 Partially correct 26 ms 5492 KB Partially correct - number of queries: 5194
31 Correct 10 ms 5492 KB Output is correct
32 Correct 17 ms 5492 KB Output is correct
33 Correct 5 ms 5492 KB Output is correct
34 Partially correct 57 ms 5492 KB Partially correct - number of queries: 5088
35 Correct 16 ms 5492 KB Output is correct
36 Partially correct 57 ms 5492 KB Partially correct - number of queries: 5054
37 Correct 12 ms 5492 KB Output is correct
38 Correct 10 ms 5492 KB Output is correct
39 Partially correct 27 ms 5492 KB Partially correct - number of queries: 5087
40 Correct 44 ms 5492 KB Output is correct
41 Partially correct 27 ms 5492 KB Partially correct - number of queries: 5136
42 Partially correct 55 ms 5492 KB Partially correct - number of queries: 5136
43 Correct 27 ms 5492 KB Output is correct
44 Partially correct 58 ms 5492 KB Partially correct - number of queries: 5100
45 Correct 26 ms 5492 KB Output is correct
46 Correct 11 ms 5492 KB Output is correct
47 Correct 53 ms 5492 KB Output is correct
48 Partially correct 27 ms 5492 KB Partially correct - number of queries: 5187
49 Partially correct 52 ms 5492 KB Partially correct - number of queries: 5040
50 Partially correct 51 ms 5492 KB Partially correct - number of queries: 5238
51 Partially correct 54 ms 5492 KB Partially correct - number of queries: 5114
52 Partially correct 52 ms 5492 KB Partially correct - number of queries: 5035
53 Correct 18 ms 5492 KB Output is correct
54 Partially correct 58 ms 5492 KB Partially correct - number of queries: 5079
55 Correct 10 ms 5492 KB Output is correct
56 Partially correct 59 ms 5492 KB Partially correct - number of queries: 5231
57 Partially correct 45 ms 5492 KB Partially correct - number of queries: 5142
58 Partially correct 53 ms 5492 KB Partially correct - number of queries: 5169
59 Partially correct 29 ms 5492 KB Partially correct - number of queries: 5131
60 Partially correct 54 ms 5492 KB Partially correct - number of queries: 5107
61 Correct 15 ms 5492 KB Output is correct
62 Correct 16 ms 5492 KB Output is correct
63 Correct 17 ms 5492 KB Output is correct
64 Correct 18 ms 5492 KB Output is correct
65 Correct 10 ms 5492 KB Output is correct
66 Correct 11 ms 5492 KB Output is correct
67 Correct 17 ms 5492 KB Output is correct
68 Correct 8 ms 5492 KB Output is correct
69 Correct 19 ms 5492 KB Output is correct
70 Correct 20 ms 5492 KB Output is correct
71 Partially correct 33 ms 5492 KB Partially correct - number of queries: 5543
72 Correct 19 ms 5492 KB Output is correct
73 Partially correct 30 ms 5492 KB Partially correct - number of queries: 5480
74 Partially correct 55 ms 5492 KB Partially correct - number of queries: 5507
75 Correct 14 ms 5492 KB Output is correct
76 Correct 56 ms 5492 KB Output is correct
77 Partially correct 56 ms 5492 KB Partially correct - number of queries: 5217
78 Correct 12 ms 5492 KB Output is correct
79 Correct 40 ms 5492 KB Output is correct
80 Partially correct 51 ms 5492 KB Partially correct - number of queries: 5215
81 Partially correct 53 ms 5492 KB Partially correct - number of queries: 5198
82 Partially correct 37 ms 5492 KB Partially correct - number of queries: 5161
83 Correct 11 ms 5492 KB Output is correct
84 Correct 36 ms 5564 KB Output is correct
85 Partially correct 56 ms 5564 KB Partially correct - number of queries: 5169
86 Correct 10 ms 5564 KB Output is correct
87 Correct 17 ms 5564 KB Output is correct
88 Correct 13 ms 5564 KB Output is correct
89 Correct 14 ms 5564 KB Output is correct
90 Correct 15 ms 5564 KB Output is correct
91 Correct 15 ms 5564 KB Output is correct
92 Correct 18 ms 5564 KB Output is correct
93 Correct 16 ms 5564 KB Output is correct
94 Correct 10 ms 5564 KB Output is correct
95 Correct 17 ms 5564 KB Output is correct
96 Correct 19 ms 5564 KB Output is correct
97 Correct 16 ms 5564 KB Output is correct