oj.uz

Submission #826324

# Submission time Handle Problem Language Result Execution time Memory
826324 2023-08-15T12:54:20 Z alvingogo Rarest Insects (IOI22_insects) C++17
99.91 / 100
 56 ms 332 KB 
#include "insects.h"
#include <bits/stdc++.h>
#define fs first
#define sc second
using namespace std;

struct DSU{
    vector<int> bo;
    void init(int x){
        bo.resize(x);
        iota(bo.begin(),bo.end(),0);
    }
    int find(int x){
        return bo[x]==x?bo[x]:bo[x]=find(bo[x]);
    }
    void merge(int x,int y){
        x=find(x);
        y=find(y);
        bo[x]=y;
    }
}dsu;
int min_cardinality(int n) {
    int cnt=0;
    dsu.init(n);
    vector<int> vis(n);
    vector<int> bo(n);
    for(int i=0;i<n;i++){
        move_inside(i);
        int a=press_button();
        if(a>1){
            move_outside(i);
        }
        else{
            vis[i]=1;
            cnt++;
        }
    }
    if(cnt<=0){
        int cc=cnt;
        vector<int> vz;
        for(int i=0;i<n;i++){
            if(!vis[i]){
                move_inside(i);
                cc++;
                if(1){
                    move_outside(i);
                    cc--;
                }
                else{
                
                }
            }
        }
    }
    else{
        int l=1,r=(n-1)/cnt+2;
        int cc=cnt;
        while(r>l){
            int m=(l+r)/2;
            vector<int> pu(n);
            for(int i=0;i<n;i++){
                if(!vis[i]){
                    move_inside(i);
                    cc++;
                    int a=press_button();
                    if(a>m){
                        move_outside(i);
                        cc--;
                    }
                    else{
                        pu[i]=1;
                    }
                }
            }
            if(m*cnt!=cc){
                r=m;
                for(int i=0;i<n;i++){
                    if(pu[i]){
                        move_outside(i);
                        cc--;
                    }
                    else{
                        vis[i]=1;
                    }
                }
            }
            else{
                l=m+1;
                for(int i=0;i<n;i++){
                    if(pu[i]){
                        vis[i]=1;
                    }
                }
            }
        }
        return l-1;
    }
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:25:22: warning: control reaches end of non-void function [-Wreturn-type]
   25 |     vector<int> vis(n);
      |                      ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 5 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 6 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 3 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 2 ms 208 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 6 ms 208 KB Output is correct
20 Correct 5 ms 208 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 3 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 5 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 6 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 3 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 2 ms 208 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 6 ms 208 KB Output is correct
20 Correct 5 ms 208 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 3 ms 208 KB Output is correct
23 Correct 14 ms 312 KB Output is correct
24 Correct 9 ms 292 KB Output is correct
25 Correct 24 ms 292 KB Output is correct
26 Correct 20 ms 316 KB Output is correct
27 Correct 26 ms 208 KB Output is correct
28 Correct 13 ms 208 KB Output is correct
29 Correct 22 ms 300 KB Output is correct
30 Correct 24 ms 292 KB Output is correct
31 Correct 23 ms 308 KB Output is correct
32 Correct 27 ms 308 KB Output is correct
33 Correct 19 ms 208 KB Output is correct
34 Correct 25 ms 316 KB Output is correct
35 Correct 25 ms 208 KB Output is correct
36 Correct 25 ms 312 KB Output is correct
37 Correct 22 ms 208 KB Output is correct
38 Correct 25 ms 288 KB Output is correct
39 Correct 20 ms 208 KB Output is correct
40 Correct 16 ms 312 KB Output is correct
41 Correct 12 ms 208 KB Output is correct

Subtask #3
74.91 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 39 ms 308 KB Output is correct
8 Correct 7 ms 320 KB Output is correct
9 Correct 48 ms 208 KB Output is correct
10 Correct 23 ms 308 KB Output is correct
11 Correct 42 ms 304 KB Output is correct
12 Correct 24 ms 208 KB Output is correct
13 Correct 20 ms 208 KB Output is correct
14 Correct 54 ms 300 KB Output is correct
15 Correct 49 ms 304 KB Output is correct
16 Correct 49 ms 308 KB Output is correct
17 Correct 53 ms 304 KB Output is correct
18 Correct 36 ms 300 KB Output is correct
19 Correct 29 ms 208 KB Output is correct
20 Correct 42 ms 208 KB Output is correct
21 Correct 37 ms 208 KB Output is correct
22 Correct 48 ms 304 KB Output is correct
23 Correct 35 ms 332 KB Output is correct
24 Correct 42 ms 208 KB Output is correct
25 Correct 28 ms 304 KB Output is correct
26 Correct 28 ms 208 KB Output is correct
27 Correct 56 ms 208 KB Output is correct
28 Correct 37 ms 208 KB Output is correct
29 Correct 39 ms 208 KB Output is correct
30 Correct 34 ms 208 KB Output is correct
31 Correct 37 ms 312 KB Output is correct
32 Correct 46 ms 312 KB Output is correct
33 Correct 40 ms 208 KB Output is correct
34 Correct 50 ms 300 KB Output is correct
35 Correct 36 ms 300 KB Output is correct
36 Correct 26 ms 304 KB Output is correct
37 Partially correct 44 ms 312 KB Output is partially correct
38 Partially correct 47 ms 304 KB Output is partially correct
39 Correct 38 ms 304 KB Output is correct
40 Correct 39 ms 208 KB Output is correct
41 Correct 21 ms 304 KB Output is correct
42 Correct 23 ms 208 KB Output is correct
43 Correct 11 ms 208 KB Output is correct
44 Correct 32 ms 208 KB Output is correct
45 Correct 50 ms 308 KB Output is correct
46 Correct 23 ms 208 KB Output is correct
47 Correct 11 ms 328 KB Output is correct
48 Correct 24 ms 300 KB Output is correct