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Submission #859243

# Submission time Handle Problem Language Result Execution time Memory
859243 2023-10-10T02:15:52 Z MasterDobby Rarest Insects (IOI22_insects) C++17
38.65 / 100
 102 ms 1532 KB 
#include <bits/stdc++.h>
#include "insects.h"
#define all(a) a.begin(),a.end()
#define pii pair<int,int>

using namespace std;
using ll = long long;

bitset<2020> ch;

int min_cardinality(int n){
    int cnt=1;
    ch[0]=1;
    move_inside(0);
    for(int i=1;i<n;i++){
        move_inside(i);
        int num=press_button();
        if(num==1){
            ch[i]=1;
            cnt++;
        }
        else{
            move_outside(i);
        }
    }
    int ans=1;
    // for(int i=2;i<=n;i++){
    //     int cnt2=0;
    //     for(int j=0;j<n;j++){
    //         if(cnt2==cnt) break;
    //         if(ch[j]) continue;
    //         move_inside(j);
    //         int num=press_button();
    //         if(num==i){
    //             ch[j]=1;
    //             cnt2++;
    //         }
    //         else{
    //             move_outside(j);
    //         }
    //     }
    //     if(cnt2!=cnt) break;
    //     ans=i;
    // }
    int l=1,r=n/cnt+1;
    while(l<r){
        int mid=(l+r+1)/2;
        int cnt2=cnt;
        vector<int> nw;
        for(int j=0;j<n;j++){
            if(cnt2==mid*cnt) break;
            if(ch[j]) continue;
            nw.push_back(j);
            move_inside(j);
            int num=press_button();
            if(num<=mid){
                // ch[j]=1;
                cnt2++;
            }
            else{
                move_outside(j);
            }
        }
        for(auto x:nw) move_outside(x);
        if(cnt2==mid*cnt) l=mid;
        else r=mid-1;
    }
    return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:26:9: warning: unused variable 'ans' [-Wunused-variable]
   26 |     int ans=1;
      |         ^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 500 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 7 ms 600 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 4 ms 600 KB Output is correct
10 Correct 6 ms 600 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 5 ms 600 KB Output is correct
13 Correct 3 ms 600 KB Output is correct
14 Correct 5 ms 600 KB Output is correct
15 Correct 5 ms 344 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 4 ms 600 KB Output is correct
18 Correct 4 ms 596 KB Output is correct
19 Correct 3 ms 852 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 500 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 7 ms 600 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 4 ms 600 KB Output is correct
10 Correct 6 ms 600 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 5 ms 600 KB Output is correct
13 Correct 3 ms 600 KB Output is correct
14 Correct 5 ms 600 KB Output is correct
15 Correct 5 ms 344 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 4 ms 600 KB Output is correct
18 Correct 4 ms 596 KB Output is correct
19 Correct 3 ms 852 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 43 ms 1168 KB Output is correct
24 Correct 4 ms 344 KB Output is correct
25 Correct 34 ms 684 KB Output is correct
26 Correct 26 ms 676 KB Output is correct
27 Correct 48 ms 924 KB Output is correct
28 Correct 6 ms 432 KB Output is correct
29 Correct 41 ms 688 KB Output is correct
30 Correct 30 ms 1100 KB Output is correct
31 Correct 38 ms 920 KB Output is correct
32 Correct 37 ms 1108 KB Output is correct
33 Correct 32 ms 600 KB Output is correct
34 Correct 30 ms 668 KB Output is correct
35 Correct 28 ms 1096 KB Output is correct
36 Correct 34 ms 944 KB Output is correct
37 Correct 23 ms 1096 KB Output is correct
38 Correct 17 ms 688 KB Output is correct
39 Correct 10 ms 608 KB Output is correct
40 Correct 6 ms 436 KB Output is correct
41 Correct 6 ms 428 KB Output is correct

Subtask #3
13.65 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Partially correct 101 ms 1164 KB Output is partially correct
8 Correct 7 ms 344 KB Output is correct
9 Partially correct 58 ms 928 KB Output is partially correct
10 Partially correct 61 ms 928 KB Output is partially correct
11 Partially correct 102 ms 1532 KB Output is partially correct
12 Correct 14 ms 432 KB Output is correct
13 Partially correct 97 ms 692 KB Output is partially correct
14 Partially correct 68 ms 852 KB Output is partially correct
15 Partially correct 73 ms 1044 KB Output is partially correct
16 Partially correct 78 ms 864 KB Output is partially correct
17 Partially correct 67 ms 856 KB Output is partially correct
18 Partially correct 81 ms 1092 KB Output is partially correct
19 Partially correct 73 ms 1144 KB Output is partially correct
20 Partially correct 79 ms 916 KB Output is partially correct
21 Partially correct 66 ms 948 KB Output is partially correct
22 Partially correct 52 ms 940 KB Output is partially correct
23 Partially correct 38 ms 672 KB Output is partially correct
24 Partially correct 32 ms 672 KB Output is partially correct
25 Correct 14 ms 608 KB Output is correct
26 Correct 16 ms 440 KB Output is correct
27 Partially correct 68 ms 668 KB Output is partially correct
28 Partially correct 54 ms 672 KB Output is partially correct
29 Partially correct 68 ms 672 KB Output is partially correct
30 Partially correct 69 ms 900 KB Output is partially correct
31 Partially correct 65 ms 924 KB Output is partially correct
32 Partially correct 55 ms 1104 KB Output is partially correct
33 Partially correct 41 ms 680 KB Output is partially correct
34 Partially correct 39 ms 916 KB Output is partially correct
35 Partially correct 64 ms 592 KB Output is partially correct
36 Partially correct 52 ms 1084 KB Output is partially correct
37 Partially correct 65 ms 676 KB Output is partially correct
38 Partially correct 54 ms 828 KB Output is partially correct
39 Partially correct 57 ms 696 KB Output is partially correct
40 Partially correct 55 ms 920 KB Output is partially correct
41 Partially correct 63 ms 1156 KB Output is partially correct
42 Partially correct 61 ms 1400 KB Output is partially correct
43 Partially correct 20 ms 1176 KB Output is partially correct
44 Partially correct 74 ms 688 KB Output is partially correct
45 Partially correct 87 ms 916 KB Output is partially correct
46 Correct 16 ms 592 KB Output is correct
47 Correct 18 ms 432 KB Output is correct
48 Correct 16 ms 440 KB Output is correct