oj.uz

Submission #859464

# Submission time Handle Problem Language Result Execution time Memory
859464 2023-10-10T07:54:46 Z kim Rarest Insects (IOI22_insects) C++17
100 / 100
 30 ms 1720 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;
vector<int> idx;

bool check(int k1){
    stack<int> st;
    for(auto &i:idx){
        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){
        idx.push_back(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){
        int mid=l+(r-l+1>>1);
        random_shuffle(idx.begin(),idx.end());
        if(check(mid)) l=mid;
        else r=mid-1;
    }
    return l;
}

Compilation message

insects.cpp: In function 'bool check(int)':
insects.cpp:17:21: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   17 |         if(mp.size()==p*k1) break;
      |            ~~~~~~~~~^~~~~~
insects.cpp:24:17: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   24 |     if(mp.size()==p*k1){
      |        ~~~~~~~~~^~~~~~
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:57:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   57 |         int mid=l+(r-l+1>>1);
      |                    ~~~^~

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 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 344 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 856 KB Output is correct
10 Correct 3 ms 1112 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 600 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 ms 600 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 2 ms 600 KB Output is correct
19 Correct 2 ms 600 KB Output is correct
20 Correct 2 ms 600 KB Output is correct
21 Correct 2 ms 1012 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 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 344 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 856 KB Output is correct
10 Correct 3 ms 1112 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 600 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 ms 600 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 2 ms 600 KB Output is correct
19 Correct 2 ms 600 KB Output is correct
20 Correct 2 ms 600 KB Output is correct
21 Correct 2 ms 1012 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 11 ms 864 KB Output is correct
24 Correct 4 ms 856 KB Output is correct
25 Correct 12 ms 988 KB Output is correct
26 Correct 15 ms 656 KB Output is correct
27 Correct 15 ms 956 KB Output is correct
28 Correct 5 ms 1112 KB Output is correct
29 Correct 15 ms 1132 KB Output is correct
30 Correct 14 ms 1172 KB Output is correct
31 Correct 10 ms 856 KB Output is correct
32 Correct 11 ms 1472 KB Output is correct
33 Correct 11 ms 1368 KB Output is correct
34 Correct 11 ms 1112 KB Output is correct
35 Correct 11 ms 616 KB Output is correct
36 Correct 12 ms 600 KB Output is correct
37 Correct 13 ms 1112 KB Output is correct
38 Correct 12 ms 1224 KB Output is correct
39 Correct 9 ms 984 KB Output is correct
40 Correct 9 ms 600 KB Output is correct
41 Correct 5 ms 1116 KB Output is correct

Subtask #3
75.0 / 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 Correct 19 ms 1276 KB Output is correct
8 Correct 9 ms 708 KB Output is correct
9 Correct 23 ms 1704 KB Output is correct
10 Correct 25 ms 856 KB Output is correct
11 Correct 24 ms 908 KB Output is correct
12 Correct 15 ms 1220 KB Output is correct
13 Correct 28 ms 1244 KB Output is correct
14 Correct 26 ms 1720 KB Output is correct
15 Correct 22 ms 1436 KB Output is correct
16 Correct 21 ms 908 KB Output is correct
17 Correct 20 ms 856 KB Output is correct
18 Correct 22 ms 1136 KB Output is correct
19 Correct 22 ms 1152 KB Output is correct
20 Correct 23 ms 1476 KB Output is correct
21 Correct 29 ms 1384 KB Output is correct
22 Correct 26 ms 1264 KB Output is correct
23 Correct 23 ms 856 KB Output is correct
24 Correct 19 ms 1116 KB Output is correct
25 Correct 16 ms 1364 KB Output is correct
26 Correct 8 ms 724 KB Output is correct
27 Correct 25 ms 1028 KB Output is correct
28 Correct 25 ms 1112 KB Output is correct
29 Correct 25 ms 1516 KB Output is correct
30 Correct 24 ms 1112 KB Output is correct
31 Correct 29 ms 1492 KB Output is correct
32 Correct 27 ms 904 KB Output is correct
33 Correct 27 ms 1368 KB Output is correct
34 Correct 29 ms 1128 KB Output is correct
35 Correct 24 ms 600 KB Output is correct
36 Correct 21 ms 1116 KB Output is correct
37 Correct 30 ms 1400 KB Output is correct
38 Correct 24 ms 1512 KB Output is correct
39 Correct 23 ms 1252 KB Output is correct
40 Correct 25 ms 808 KB Output is correct
41 Correct 25 ms 876 KB Output is correct
42 Correct 21 ms 756 KB Output is correct
43 Correct 6 ms 600 KB Output is correct
44 Correct 24 ms 956 KB Output is correct
45 Correct 23 ms 856 KB Output is correct
46 Correct 13 ms 1360 KB Output is correct
47 Correct 12 ms 1368 KB Output is correct
48 Correct 15 ms 732 KB Output is correct