답안 #966346

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
966346 2024-04-19T17:51:54 Z bachhoangxuan 커다란 상품 (IOI17_prize) C++17
99.26 / 100
42 ms 7052 KB
#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

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;
    vector<int> ord(min(n,500));
    iota(ord.begin(),ord.end(),0);
    shuffle(ord.begin(),ord.end(),rng);
    for(int i=0;i<500;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;
            bool check=false;
            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);
                    check=true;
                    break;
                }
                if(cc[0]-query(p[mid])) r=mid-1;
                else l=mid+1;
            }
            if(!check){
                vector<int> cc=get(p[l]);
                if(cc[1]==0) return p[l];
                update(p[l]);
                p.erase(p.begin()+l);
                check=true;
            }
            cnt--;
        }
    }
	return -1;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5756 KB Output is correct
2 Correct 5 ms 6024 KB Output is correct
3 Correct 5 ms 6028 KB Output is correct
4 Correct 7 ms 6268 KB Output is correct
5 Correct 5 ms 6012 KB Output is correct
6 Correct 2 ms 5720 KB Output is correct
7 Correct 4 ms 6032 KB Output is correct
8 Correct 6 ms 5764 KB Output is correct
9 Correct 6 ms 5760 KB Output is correct
10 Correct 6 ms 5776 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 6016 KB Output is correct
2 Correct 5 ms 6272 KB Output is correct
3 Correct 5 ms 6012 KB Output is correct
4 Correct 7 ms 5756 KB Output is correct
5 Correct 5 ms 6024 KB Output is correct
6 Correct 2 ms 5720 KB Output is correct
7 Correct 5 ms 6024 KB Output is correct
8 Correct 5 ms 6528 KB Output is correct
9 Correct 4 ms 5780 KB Output is correct
10 Correct 5 ms 6032 KB Output is correct
11 Correct 5 ms 6028 KB Output is correct
12 Correct 5 ms 6268 KB Output is correct
13 Correct 9 ms 6536 KB Output is correct
14 Correct 5 ms 6008 KB Output is correct
15 Correct 6 ms 6308 KB Output is correct
16 Correct 20 ms 6856 KB Output is correct
17 Correct 3 ms 5756 KB Output is correct
18 Correct 29 ms 6544 KB Output is correct
19 Correct 3 ms 6012 KB Output is correct
20 Correct 8 ms 6308 KB Output is correct
21 Correct 11 ms 6160 KB Output is correct
22 Correct 5 ms 6560 KB Output is correct
23 Correct 4 ms 6012 KB Output is correct
24 Correct 4 ms 6012 KB Output is correct
25 Correct 16 ms 6364 KB Output is correct
26 Correct 12 ms 6616 KB Output is correct
27 Correct 5 ms 6024 KB Output is correct
28 Correct 25 ms 6648 KB Output is correct
29 Correct 14 ms 6748 KB Output is correct
30 Correct 30 ms 7052 KB Output is correct
31 Correct 3 ms 5760 KB Output is correct
32 Correct 5 ms 6280 KB Output is correct
33 Correct 2 ms 5720 KB Output is correct
34 Correct 11 ms 7020 KB Output is correct
35 Correct 7 ms 6176 KB Output is correct
36 Correct 7 ms 6348 KB Output is correct
37 Correct 4 ms 5796 KB Output is correct
38 Correct 3 ms 6004 KB Output is correct
39 Correct 11 ms 6596 KB Output is correct
40 Correct 20 ms 6988 KB Output is correct
41 Correct 13 ms 6984 KB Output is correct
42 Correct 16 ms 6048 KB Output is correct
43 Correct 13 ms 6840 KB Output is correct
44 Correct 11 ms 6084 KB Output is correct
45 Correct 9 ms 6016 KB Output is correct
46 Correct 3 ms 5756 KB Output is correct
47 Correct 11 ms 6056 KB Output is correct
48 Correct 22 ms 6416 KB Output is correct
49 Correct 5 ms 6524 KB Output is correct
50 Correct 26 ms 6868 KB Output is correct
51 Correct 12 ms 6416 KB Output is correct
52 Correct 4 ms 6016 KB Output is correct
53 Correct 6 ms 6032 KB Output is correct
54 Correct 13 ms 6428 KB Output is correct
55 Correct 4 ms 6008 KB Output is correct
56 Correct 33 ms 6760 KB Output is correct
57 Correct 18 ms 6228 KB Output is correct
58 Correct 20 ms 6476 KB Output is correct
59 Correct 15 ms 6820 KB Output is correct
60 Correct 16 ms 6204 KB Output is correct
61 Correct 6 ms 6284 KB Output is correct
62 Correct 4 ms 6264 KB Output is correct
63 Correct 7 ms 6028 KB Output is correct
64 Correct 6 ms 6280 KB Output is correct
65 Correct 6 ms 6056 KB Output is correct
66 Correct 8 ms 6272 KB Output is correct
67 Correct 10 ms 6008 KB Output is correct
68 Correct 3 ms 6016 KB Output is correct
69 Correct 7 ms 6024 KB Output is correct
70 Correct 9 ms 6280 KB Output is correct
71 Partially correct 33 ms 6508 KB Partially correct - number of queries: 5074
72 Correct 7 ms 6540 KB Output is correct
73 Partially correct 29 ms 6800 KB Partially correct - number of queries: 5018
74 Partially correct 42 ms 6860 KB Partially correct - number of queries: 5042
75 Correct 8 ms 5756 KB Output is correct
76 Correct 32 ms 6672 KB Output is correct
77 Correct 33 ms 6912 KB Output is correct
78 Correct 7 ms 6004 KB Output is correct
79 Correct 15 ms 6504 KB Output is correct
80 Correct 24 ms 7020 KB Output is correct
81 Correct 20 ms 6472 KB Output is correct
82 Correct 29 ms 6376 KB Output is correct
83 Correct 7 ms 6772 KB Output is correct
84 Correct 26 ms 6576 KB Output is correct
85 Correct 37 ms 6780 KB Output is correct
86 Correct 8 ms 6008 KB Output is correct
87 Correct 6 ms 6260 KB Output is correct
88 Correct 6 ms 6264 KB Output is correct
89 Correct 6 ms 6260 KB Output is correct
90 Correct 6 ms 6520 KB Output is correct
91 Correct 6 ms 6260 KB Output is correct
92 Correct 9 ms 6288 KB Output is correct
93 Correct 7 ms 6560 KB Output is correct
94 Correct 9 ms 6324 KB Output is correct
95 Correct 9 ms 6092 KB Output is correct
96 Correct 8 ms 6308 KB Output is correct
97 Correct 7 ms 6016 KB Output is correct