oj.uz

Submission #859318

# Submission time Handle Problem Language Result Execution time Memory
859318 2023-10-10T03:58:23 Z kim Rarest Insects (IOI22_insects) C++17
99.89 / 100
 43 ms 1888 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,k0;

bool check(int k1){
    stack<int> st;
    for(int i=0;i<n;++i){
        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){
        k0=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();
    k0=1;

    int l=1,r=n/p;
    while(l<r){
        int mid=l+(r-l+1>>1);
        if(check(mid)) l=mid;
        else r=mid-1;
    }
    return l;
}

Compilation message

insects.cpp: In function 'bool check(int)':
insects.cpp:22:17: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   22 |     if(mp.size()==p*k1){
      |        ~~~~~~~~~^~~~~~
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:56:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   56 |         int mid=l+(r-l+1>>1);
      |                    ~~~^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 2 ms 600 KB Output is correct
7 Correct 2 ms 600 KB Output is correct
8 Correct 4 ms 856 KB Output is correct
9 Correct 4 ms 856 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 600 KB Output is correct
13 Correct 3 ms 696 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 600 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 3 ms 860 KB Output is correct
18 Correct 2 ms 688 KB Output is correct
19 Correct 2 ms 856 KB Output is correct
20 Correct 2 ms 700 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 2 ms 344 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 2 ms 600 KB Output is correct
7 Correct 2 ms 600 KB Output is correct
8 Correct 4 ms 856 KB Output is correct
9 Correct 4 ms 856 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 600 KB Output is correct
13 Correct 3 ms 696 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 600 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 3 ms 860 KB Output is correct
18 Correct 2 ms 688 KB Output is correct
19 Correct 2 ms 856 KB Output is correct
20 Correct 2 ms 700 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 2 ms 344 KB Output is correct
23 Correct 15 ms 1380 KB Output is correct
24 Correct 5 ms 600 KB Output is correct
25 Correct 15 ms 968 KB Output is correct
26 Correct 14 ms 1128 KB Output is correct
27 Correct 13 ms 956 KB Output is correct
28 Correct 6 ms 968 KB Output is correct
29 Correct 15 ms 1008 KB Output is correct
30 Correct 14 ms 988 KB Output is correct
31 Correct 17 ms 1244 KB Output is correct
32 Correct 15 ms 1232 KB Output is correct
33 Correct 14 ms 1128 KB Output is correct
34 Correct 14 ms 856 KB Output is correct
35 Correct 15 ms 988 KB Output is correct
36 Correct 14 ms 976 KB Output is correct
37 Correct 15 ms 1132 KB Output is correct
38 Correct 14 ms 968 KB Output is correct
39 Correct 10 ms 876 KB Output is correct
40 Correct 8 ms 612 KB Output is correct
41 Correct 5 ms 968 KB Output is correct

Subtask #3
74.89 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 596 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 340 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 28 ms 1368 KB Output is correct
8 Correct 9 ms 616 KB Output is correct
9 Correct 33 ms 868 KB Output is correct
10 Correct 29 ms 1032 KB Output is correct
11 Correct 27 ms 980 KB Output is correct
12 Correct 14 ms 1112 KB Output is correct
13 Correct 32 ms 1384 KB Output is correct
14 Correct 29 ms 1728 KB Output is correct
15 Correct 27 ms 1452 KB Output is correct
16 Correct 30 ms 1508 KB Output is correct
17 Correct 29 ms 1476 KB Output is correct
18 Correct 43 ms 984 KB Output is correct
19 Partially correct 26 ms 1136 KB Output is partially correct
20 Correct 36 ms 856 KB Output is correct
21 Correct 27 ms 1012 KB Output is correct
22 Correct 33 ms 904 KB Output is correct
23 Correct 25 ms 792 KB Output is correct
24 Correct 28 ms 1396 KB Output is correct
25 Correct 16 ms 1140 KB Output is correct
26 Correct 9 ms 656 KB Output is correct
27 Correct 34 ms 1128 KB Output is correct
28 Correct 34 ms 1284 KB Output is correct
29 Partially correct 31 ms 1888 KB Output is partially correct
30 Partially correct 31 ms 856 KB Output is partially correct
31 Correct 30 ms 868 KB Output is correct
32 Correct 25 ms 1436 KB Output is correct
33 Correct 32 ms 1536 KB Output is correct
34 Correct 30 ms 992 KB Output is correct
35 Partially correct 31 ms 908 KB Output is partially correct
36 Partially correct 33 ms 1124 KB Output is partially correct
37 Correct 34 ms 848 KB Output is correct
38 Correct 37 ms 612 KB Output is correct
39 Correct 28 ms 1392 KB Output is correct
40 Correct 32 ms 776 KB Output is correct
41 Partially correct 25 ms 968 KB Output is partially correct
42 Partially correct 32 ms 1392 KB Output is partially correct
43 Correct 6 ms 344 KB Output is correct
44 Correct 21 ms 1112 KB Output is correct
45 Correct 27 ms 600 KB Output is correct
46 Correct 13 ms 1116 KB Output is correct
47 Correct 12 ms 992 KB Output is correct
48 Correct 17 ms 1220 KB Output is correct