Submission #859384

# Submission time Handle Problem Language Result Execution time Memory
859384 2023-10-10T05:54:33 Z kim Rarest Insects (IOI22_insects) C++17
94.04 / 100
40 ms 1752 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;
    int mx;
    for(int i=0;i<n;++i){
        in(i);
        if(press()>1) out(i),mp2.insert(i);
        else mp.insert(i),mx=N-i;
    }
    p=mp.size();

    int l=1,r=min(mx,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: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){
      |        ~~~~~~~~~^~~~~~
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);
      |                    ~~~^~
insects.cpp:46:9: warning: 'mx' may be used uninitialized in this function [-Wmaybe-uninitialized]
   46 |     int mx;
      |         ^~
# 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 436 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 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 856 KB Output is correct
12 Correct 3 ms 856 KB Output is correct
13 Correct 3 ms 856 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 2 ms 600 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 600 KB Output is correct
18 Correct 2 ms 600 KB Output is correct
19 Correct 2 ms 600 KB Output is correct
20 Correct 3 ms 856 KB Output is correct
21 Correct 2 ms 856 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
# 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 436 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 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 856 KB Output is correct
12 Correct 3 ms 856 KB Output is correct
13 Correct 3 ms 856 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 2 ms 600 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 600 KB Output is correct
18 Correct 2 ms 600 KB Output is correct
19 Correct 2 ms 600 KB Output is correct
20 Correct 3 ms 856 KB Output is correct
21 Correct 2 ms 856 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 10 ms 984 KB Output is correct
24 Correct 4 ms 1124 KB Output is correct
25 Correct 12 ms 476 KB Output is correct
26 Correct 11 ms 1112 KB Output is correct
27 Correct 12 ms 968 KB Output is correct
28 Correct 4 ms 600 KB Output is correct
29 Correct 15 ms 600 KB Output is correct
30 Correct 17 ms 1112 KB Output is correct
31 Correct 11 ms 952 KB Output is correct
32 Correct 10 ms 1112 KB Output is correct
33 Correct 14 ms 856 KB Output is correct
34 Correct 10 ms 720 KB Output is correct
35 Correct 14 ms 856 KB Output is correct
36 Correct 11 ms 600 KB Output is correct
37 Correct 12 ms 856 KB Output is correct
38 Correct 11 ms 644 KB Output is correct
39 Correct 12 ms 884 KB Output is correct
40 Correct 7 ms 1116 KB Output is correct
41 Correct 4 ms 856 KB Output is correct
# 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 22 ms 1644 KB Output is correct
8 Correct 10 ms 1148 KB Output is correct
9 Correct 25 ms 1244 KB Output is correct
10 Correct 33 ms 984 KB Output is correct
11 Correct 24 ms 1232 KB Output is correct
12 Correct 9 ms 1112 KB Output is correct
13 Correct 28 ms 1472 KB Output is correct
14 Correct 25 ms 1404 KB Output is correct
15 Correct 24 ms 600 KB Output is correct
16 Correct 25 ms 1360 KB Output is correct
17 Correct 21 ms 1112 KB Output is correct
18 Correct 27 ms 1112 KB Output is correct
19 Correct 31 ms 856 KB Output is correct
20 Correct 26 ms 1272 KB Output is correct
21 Correct 31 ms 1368 KB Output is correct
22 Correct 35 ms 708 KB Output is correct
23 Correct 22 ms 1020 KB Output is correct
24 Correct 22 ms 940 KB Output is correct
25 Correct 14 ms 984 KB Output is correct
26 Correct 10 ms 1368 KB Output is correct
27 Correct 26 ms 856 KB Output is correct
28 Correct 20 ms 696 KB Output is correct
29 Correct 27 ms 1112 KB Output is correct
30 Correct 30 ms 1212 KB Output is correct
31 Correct 30 ms 1384 KB Output is correct
32 Correct 28 ms 1372 KB Output is correct
33 Correct 26 ms 868 KB Output is correct
34 Correct 22 ms 868 KB Output is correct
35 Partially correct 26 ms 1752 KB Output is partially correct
36 Correct 20 ms 1616 KB Output is correct
37 Correct 27 ms 1252 KB Output is correct
38 Partially correct 40 ms 884 KB Output is partially correct
39 Correct 28 ms 960 KB Output is correct
40 Correct 18 ms 1396 KB Output is correct
41 Correct 21 ms 1104 KB Output is correct
42 Partially correct 29 ms 1360 KB Output is partially correct
43 Correct 8 ms 600 KB Output is correct
44 Correct 16 ms 1136 KB Output is correct
45 Correct 20 ms 856 KB Output is correct
46 Correct 16 ms 1112 KB Output is correct
47 Correct 14 ms 512 KB Output is correct
48 Correct 12 ms 1464 KB Output is correct