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Submission #859412

# Submission time Handle Problem Language Result Execution time Memory
859412 2023-10-10T06:07:03 Z kim Rarest Insects (IOI22_insects) C++17
98.1 / 100
 41 ms 1816 KB 
#include "insects.h"
#include<bits/stdc++.h>

using namespace std;

#define in move_inside
#define press press_button
#define out move_outside

set<int> mp,mp2,mp3;
int n,p;

bool check(int k1){
    stack<int> st;
    for(int i=0;i<n;++i){
        if(mp.size()==p*k1) break;
        if(mp.count(i)) continue;
        if(mp3.count(i)) continue;
        in(i);
        if(press()>k1) out(i);
        else mp.insert(i),st.push(i);
    }
    if(mp.size()==p*k1){
        for(auto &e:mp) if(mp2.count(e)) mp2.erase(e);
        return 1;
    }
    stack<int> st2;
    for(auto &e:mp2){
        if(!mp.count(e)) st2.push(e);
    }
    while(!st2.empty()){
        mp2.erase(st2.top());
        mp3.insert(st2.top());
        st2.pop();
    }
    while(st.size()){
        mp.erase(st.top());
        out(st.top());
        st.pop();
    }
    return 0;
}

int min_cardinality(int N){
    n=N;
    for(int i=0;i<n;++i){
        in(i);
        if(press()>1) out(i),mp2.insert(i);
        else mp.insert(i);
    }
    p=mp.size();

    int l=1,r=n/p;
    while(l<r){
        if(r==l+1){
            if(check(r)) return r;
            return l;
        }
        if(r==l+2){
            if(check(r)) return r;
            if(check(l+1)) return l+1;
            return l;
        }
        int sz=(r-l)/3;
        int mid1=l+sz;
        int mid2=r-sz;
        if(check(mid2)) l=mid2;
        else if(check(mid1)) l=mid1,r=mid2-1;
        else r=mid1-1;
    }
    return l;
}

Compilation message

insects.cpp: In function 'bool check(int)':
insects.cpp:16:21: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   16 |         if(mp.size()==p*k1) break;
      |            ~~~~~~~~~^~~~~~
insects.cpp:23:17: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   23 |     if(mp.size()==p*k1){
      |        ~~~~~~~~~^~~~~~

Subtask #1
10.0 / 10.0

# 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 404 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 3 ms 600 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 856 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 3 ms 448 KB Output is correct
15 Correct 2 ms 600 KB Output is correct
16 Correct 2 ms 444 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 3 ms 600 KB Output is correct
19 Correct 3 ms 600 KB Output is correct
20 Correct 2 ms 692 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 1 ms 600 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 0 ms 344 KB Output is correct
3 Correct 0 ms 404 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 3 ms 600 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 856 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 3 ms 448 KB Output is correct
15 Correct 2 ms 600 KB Output is correct
16 Correct 2 ms 444 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 3 ms 600 KB Output is correct
19 Correct 3 ms 600 KB Output is correct
20 Correct 2 ms 692 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 9 ms 984 KB Output is correct
24 Correct 4 ms 964 KB Output is correct
25 Correct 10 ms 856 KB Output is correct
26 Correct 15 ms 1624 KB Output is correct
27 Correct 11 ms 712 KB Output is correct
28 Correct 4 ms 868 KB Output is correct
29 Correct 17 ms 712 KB Output is correct
30 Correct 13 ms 1008 KB Output is correct
31 Correct 11 ms 636 KB Output is correct
32 Correct 12 ms 1384 KB Output is correct
33 Correct 15 ms 888 KB Output is correct
34 Correct 14 ms 1232 KB Output is correct
35 Correct 11 ms 1112 KB Output is correct
36 Correct 12 ms 1208 KB Output is correct
37 Correct 14 ms 648 KB Output is correct
38 Correct 13 ms 600 KB Output is correct
39 Correct 11 ms 856 KB Output is correct
40 Correct 7 ms 1460 KB Output is correct
41 Correct 4 ms 600 KB Output is correct

Subtask #3
73.1 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 368 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 1 ms 344 KB Output is correct
7 Correct 21 ms 1816 KB Output is correct
8 Correct 10 ms 976 KB Output is correct
9 Correct 22 ms 696 KB Output is correct
10 Partially correct 36 ms 1504 KB Output is partially correct
11 Correct 25 ms 1104 KB Output is correct
12 Correct 15 ms 1112 KB Output is correct
13 Partially correct 41 ms 1112 KB Output is partially correct
14 Partially correct 32 ms 1352 KB Output is partially correct
15 Correct 26 ms 1384 KB Output is correct
16 Correct 25 ms 1240 KB Output is correct
17 Correct 26 ms 1112 KB Output is correct
18 Correct 24 ms 1052 KB Output is correct
19 Correct 25 ms 988 KB Output is correct
20 Correct 21 ms 1204 KB Output is correct
21 Partially correct 30 ms 1280 KB Output is partially correct
22 Partially correct 34 ms 756 KB Output is partially correct
23 Correct 35 ms 600 KB Output is correct
24 Correct 22 ms 1528 KB Output is correct
25 Correct 17 ms 1648 KB Output is correct
26 Correct 8 ms 1128 KB Output is correct
27 Correct 26 ms 600 KB Output is correct
28 Correct 17 ms 1216 KB Output is correct
29 Correct 23 ms 1128 KB Output is correct
30 Correct 20 ms 1276 KB Output is correct
31 Partially correct 31 ms 1672 KB Output is partially correct
32 Partially correct 37 ms 1516 KB Output is partially correct
33 Partially correct 35 ms 1256 KB Output is partially correct
34 Partially correct 29 ms 1396 KB Output is partially correct
35 Correct 23 ms 1764 KB Output is correct
36 Correct 22 ms 1112 KB Output is correct
37 Partially correct 28 ms 1712 KB Output is partially correct
38 Partially correct 30 ms 1364 KB Output is partially correct
39 Correct 20 ms 1112 KB Output is correct
40 Correct 19 ms 856 KB Output is correct
41 Correct 22 ms 1252 KB Output is correct
42 Correct 22 ms 1740 KB Output is correct
43 Correct 8 ms 1124 KB Output is correct
44 Correct 25 ms 772 KB Output is correct
45 Correct 22 ms 1368 KB Output is correct
46 Correct 13 ms 1412 KB Output is correct
47 Correct 13 ms 1368 KB Output is correct
48 Correct 13 ms 692 KB Output is correct