Submission #966324

# Submission time Handle Problem Language Result Execution time Memory
966324 2024-04-19T17:31:34 Z bachhoangxuan The Big Prize (IOI17_prize) C++17
99.26 / 100
30 ms 7336 KB
#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
const int B = 500;
const int maxn = 2e5+5;

vector<int> res[maxn];
vector<int> get(int x){
    if(!res[x].empty()) return res[x];
    res[x]=ask(x);res[x][1]+=res[x][0];
    return res[x];
}

int N,bit[maxn],Max;
void update(int x){
    for(int i=x+1;i<=N;i+=(i&(-i))) bit[i]++;
}
int query(int x){
    int ans=0;
    for(int i=x+1;i>=1;i-=(i&(-i))) ans+=bit[i];
    return ans;
}

int find_best(int n){
    N=n;
    for(int i=0;i<min(N,B);i++){
        vector<int> cc=get(i);
        if(cc[1]==0) return i;
        Max=max(Max,cc[1]);
    }
    for(int i=0;i<n;i+=B){
        vector<int> p;
        for(int j=i;j<min(i+B,n);j++) p.push_back(j);
        int cnt=0;
        while(!p.empty()){
            int x=p.back();p.pop_back();
            vector<int> cc=get(x);
            if(cc[1]==0) return x;
            if(cc[1]<Max) update(x);
            else{
                cnt=cc[0]-query(x);
                break;
            }
        }
        while(cnt){
            int l=0,r=(int)p.size()-1;
            while(l<=r){
                int mid=(l+r)>>1;
                vector<int> cc=get(p[mid]);
                if(cc[1]==0) return p[mid];
                if(cc[1]<Max){
                    update(p[mid]);
                    p.erase(p.begin()+mid);
                    break;
                }
                if(cc[0]-query(p[mid])) r=mid-1;
                else l=mid+1;
            }
            cnt--;
        }
    }
	return -1;
}
# Verdict Execution time Memory Grader output
1 Correct 4 ms 5992 KB Output is correct
2 Correct 6 ms 6008 KB Output is correct
3 Correct 5 ms 6004 KB Output is correct
4 Correct 5 ms 6004 KB Output is correct
5 Correct 5 ms 6260 KB Output is correct
6 Correct 1 ms 5720 KB Output is correct
7 Correct 5 ms 6264 KB Output is correct
8 Correct 5 ms 6016 KB Output is correct
9 Correct 7 ms 5752 KB Output is correct
10 Correct 8 ms 5748 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 5 ms 5992 KB Output is correct
2 Correct 5 ms 6012 KB Output is correct
3 Correct 4 ms 6012 KB Output is correct
4 Correct 5 ms 5760 KB Output is correct
5 Correct 7 ms 6264 KB Output is correct
6 Correct 2 ms 5916 KB Output is correct
7 Correct 5 ms 6008 KB Output is correct
8 Correct 5 ms 6516 KB Output is correct
9 Correct 5 ms 6264 KB Output is correct
10 Correct 7 ms 6000 KB Output is correct
11 Correct 5 ms 6528 KB Output is correct
12 Correct 4 ms 5996 KB Output is correct
13 Correct 6 ms 6256 KB Output is correct
14 Correct 4 ms 5992 KB Output is correct
15 Correct 6 ms 6036 KB Output is correct
16 Correct 21 ms 6832 KB Output is correct
17 Correct 3 ms 5996 KB Output is correct
18 Correct 27 ms 7016 KB Output is correct
19 Correct 3 ms 5992 KB Output is correct
20 Correct 10 ms 6292 KB Output is correct
21 Correct 10 ms 6180 KB Output is correct
22 Correct 5 ms 6296 KB Output is correct
23 Correct 4 ms 5996 KB Output is correct
24 Correct 4 ms 6000 KB Output is correct
25 Correct 14 ms 6732 KB Output is correct
26 Correct 15 ms 6608 KB Output is correct
27 Correct 5 ms 6508 KB Output is correct
28 Correct 21 ms 6256 KB Output is correct
29 Correct 19 ms 6408 KB Output is correct
30 Correct 24 ms 6912 KB Output is correct
31 Correct 3 ms 5748 KB Output is correct
32 Correct 5 ms 6256 KB Output is correct
33 Correct 2 ms 5720 KB Output is correct
34 Correct 9 ms 6348 KB Output is correct
35 Correct 6 ms 6268 KB Output is correct
36 Correct 9 ms 6572 KB Output is correct
37 Correct 5 ms 6000 KB Output is correct
38 Correct 5 ms 5992 KB Output is correct
39 Correct 12 ms 6620 KB Output is correct
40 Correct 22 ms 6580 KB Output is correct
41 Correct 13 ms 6000 KB Output is correct
42 Correct 18 ms 7048 KB Output is correct
43 Correct 14 ms 7088 KB Output is correct
44 Correct 18 ms 6272 KB Output is correct
45 Correct 15 ms 6752 KB Output is correct
46 Correct 3 ms 5992 KB Output is correct
47 Correct 12 ms 6408 KB Output is correct
48 Correct 21 ms 6636 KB Output is correct
49 Correct 5 ms 6288 KB Output is correct
50 Correct 29 ms 6772 KB Output is correct
51 Correct 13 ms 6428 KB Output is correct
52 Correct 4 ms 5996 KB Output is correct
53 Correct 5 ms 6264 KB Output is correct
54 Correct 13 ms 6360 KB Output is correct
55 Correct 4 ms 5748 KB Output is correct
56 Correct 29 ms 6764 KB Output is correct
57 Correct 16 ms 6720 KB Output is correct
58 Correct 16 ms 6404 KB Output is correct
59 Correct 17 ms 6804 KB Output is correct
60 Correct 13 ms 6500 KB Output is correct
61 Correct 6 ms 6264 KB Output is correct
62 Correct 4 ms 6256 KB Output is correct
63 Correct 6 ms 6284 KB Output is correct
64 Correct 5 ms 5996 KB Output is correct
65 Correct 7 ms 6036 KB Output is correct
66 Correct 6 ms 6268 KB Output is correct
67 Correct 7 ms 6032 KB Output is correct
68 Correct 3 ms 5744 KB Output is correct
69 Correct 5 ms 5984 KB Output is correct
70 Correct 7 ms 6028 KB Output is correct
71 Partially correct 30 ms 6508 KB Partially correct - number of queries: 5074
72 Correct 8 ms 5760 KB Output is correct
73 Partially correct 23 ms 6548 KB Partially correct - number of queries: 5018
74 Partially correct 24 ms 6556 KB Partially correct - number of queries: 5042
75 Correct 6 ms 5768 KB Output is correct
76 Correct 27 ms 6500 KB Output is correct
77 Correct 29 ms 6872 KB Output is correct
78 Correct 9 ms 6276 KB Output is correct
79 Correct 12 ms 6492 KB Output is correct
80 Correct 23 ms 7336 KB Output is correct
81 Correct 25 ms 7176 KB Output is correct
82 Correct 29 ms 6772 KB Output is correct
83 Correct 6 ms 5996 KB Output is correct
84 Correct 18 ms 6292 KB Output is correct
85 Correct 21 ms 7156 KB Output is correct
86 Correct 6 ms 6000 KB Output is correct
87 Correct 6 ms 6504 KB Output is correct
88 Correct 5 ms 6252 KB Output is correct
89 Correct 6 ms 6252 KB Output is correct
90 Correct 7 ms 6508 KB Output is correct
91 Correct 7 ms 6260 KB Output is correct
92 Correct 6 ms 6252 KB Output is correct
93 Correct 6 ms 6544 KB Output is correct
94 Correct 6 ms 6288 KB Output is correct
95 Correct 6 ms 6084 KB Output is correct
96 Correct 6 ms 6304 KB Output is correct
97 Correct 6 ms 6288 KB Output is correct