Submission #89258

# Submission time Handle Problem Language Result Execution time Memory
89258 2018-12-11T07:30:34 Z igzi The Big Prize (IOI17_prize) C++17
90 / 100
68 ms 5568 KB
#include <bits/stdc++.h>
#define D 500
#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){
if(n<=D){
    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<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) x=a[i*(n/D)][0]+a[i*(n/D)][1];
}
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;
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);
  if(a[v[i]].empty()) a[v[i]]=ask(v[i]);
  if(a[v[i]][0]+a[v[i]][1]==0) return v[i];
  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:53:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(i=0;i<v.size();i++){
         ~^~~~~~~~~
prize.cpp:57:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
# Verdict Execution time Memory Grader output
1 Correct 9 ms 5128 KB Output is correct
2 Correct 12 ms 5128 KB Output is correct
3 Correct 8 ms 5128 KB Output is correct
4 Correct 8 ms 5172 KB Output is correct
5 Correct 8 ms 5300 KB Output is correct
6 Correct 10 ms 5300 KB Output is correct
7 Correct 12 ms 5300 KB Output is correct
8 Correct 12 ms 5300 KB Output is correct
9 Correct 12 ms 5300 KB Output is correct
10 Correct 12 ms 5300 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 11 ms 5300 KB Output is correct
2 Correct 9 ms 5300 KB Output is correct
3 Correct 12 ms 5300 KB Output is correct
4 Correct 9 ms 5312 KB Output is correct
5 Correct 11 ms 5312 KB Output is correct
6 Correct 8 ms 5328 KB Output is correct
7 Correct 8 ms 5328 KB Output is correct
8 Correct 10 ms 5328 KB Output is correct
9 Correct 10 ms 5328 KB Output is correct
10 Correct 10 ms 5328 KB Output is correct
11 Correct 8 ms 5336 KB Output is correct
12 Correct 12 ms 5336 KB Output is correct
13 Correct 15 ms 5336 KB Output is correct
14 Correct 11 ms 5336 KB Output is correct
15 Correct 10 ms 5352 KB Output is correct
16 Correct 45 ms 5356 KB Output is correct
17 Correct 12 ms 5356 KB Output is correct
18 Correct 54 ms 5412 KB Output is correct
19 Correct 10 ms 5412 KB Output is correct
20 Correct 12 ms 5412 KB Output is correct
21 Correct 28 ms 5412 KB Output is correct
22 Correct 10 ms 5412 KB Output is correct
23 Correct 8 ms 5412 KB Output is correct
24 Correct 12 ms 5412 KB Output is correct
25 Correct 33 ms 5412 KB Output is correct
26 Correct 16 ms 5412 KB Output is correct
27 Correct 10 ms 5412 KB Output is correct
28 Correct 48 ms 5476 KB Output is correct
29 Correct 19 ms 5476 KB Output is correct
30 Correct 34 ms 5476 KB Output is correct
31 Correct 8 ms 5476 KB Output is correct
32 Correct 9 ms 5476 KB Output is correct
33 Correct 5 ms 5476 KB Output is correct
34 Correct 21 ms 5476 KB Output is correct
35 Correct 8 ms 5476 KB Output is correct
36 Correct 20 ms 5476 KB Output is correct
37 Correct 12 ms 5476 KB Output is correct
38 Correct 11 ms 5476 KB Output is correct
39 Correct 24 ms 5476 KB Output is correct
40 Correct 25 ms 5476 KB Output is correct
41 Correct 35 ms 5476 KB Output is correct
42 Correct 30 ms 5476 KB Output is correct
43 Correct 28 ms 5476 KB Output is correct
44 Correct 14 ms 5476 KB Output is correct
45 Correct 13 ms 5476 KB Output is correct
46 Correct 8 ms 5476 KB Output is correct
47 Correct 26 ms 5476 KB Output is correct
48 Correct 20 ms 5476 KB Output is correct
49 Correct 13 ms 5476 KB Output is correct
50 Correct 25 ms 5476 KB Output is correct
51 Correct 26 ms 5476 KB Output is correct
52 Correct 8 ms 5476 KB Output is correct
53 Correct 12 ms 5476 KB Output is correct
54 Correct 27 ms 5476 KB Output is correct
55 Correct 8 ms 5476 KB Output is correct
56 Correct 53 ms 5476 KB Output is correct
57 Correct 38 ms 5476 KB Output is correct
58 Correct 59 ms 5476 KB Output is correct
59 Correct 31 ms 5476 KB Output is correct
60 Correct 32 ms 5476 KB Output is correct
61 Correct 9 ms 5476 KB Output is correct
62 Correct 9 ms 5476 KB Output is correct
63 Correct 9 ms 5476 KB Output is correct
64 Correct 8 ms 5476 KB Output is correct
65 Correct 12 ms 5476 KB Output is correct
66 Correct 14 ms 5476 KB Output is correct
67 Correct 11 ms 5476 KB Output is correct
68 Correct 12 ms 5476 KB Output is correct
69 Correct 15 ms 5476 KB Output is correct
70 Correct 12 ms 5476 KB Output is correct
71 Correct 46 ms 5476 KB Output is correct
72 Correct 15 ms 5476 KB Output is correct
73 Correct 52 ms 5476 KB Output is correct
74 Correct 47 ms 5476 KB Output is correct
75 Correct 12 ms 5476 KB Output is correct
76 Correct 24 ms 5476 KB Output is correct
77 Correct 40 ms 5476 KB Output is correct
78 Correct 15 ms 5476 KB Output is correct
79 Correct 30 ms 5476 KB Output is correct
80 Correct 34 ms 5476 KB Output is correct
81 Correct 47 ms 5476 KB Output is correct
82 Correct 44 ms 5516 KB Output is correct
83 Correct 11 ms 5516 KB Output is correct
84 Correct 41 ms 5516 KB Output is correct
85 Correct 47 ms 5516 KB Output is correct
86 Partially correct 35 ms 5516 KB Partially correct - number of queries: 6562
87 Correct 15 ms 5516 KB Output is correct
88 Partially correct 59 ms 5516 KB Partially correct - number of queries: 6196
89 Partially correct 55 ms 5520 KB Partially correct - number of queries: 6543
90 Correct 10 ms 5520 KB Output is correct
91 Correct 41 ms 5520 KB Output is correct
92 Partially correct 68 ms 5520 KB Partially correct - number of queries: 6217
93 Partially correct 43 ms 5568 KB Partially correct - number of queries: 6723
94 Partially correct 37 ms 5568 KB Partially correct - number of queries: 6727
95 Partially correct 64 ms 5568 KB Partially correct - number of queries: 6706
96 Partially correct 68 ms 5568 KB Partially correct - number of queries: 6652
97 Partially correct 65 ms 5568 KB Partially correct - number of queries: 6337