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Submission #1005515

# Submission time Handle Problem Language Result Execution time Memory
1005515 2024-06-22T14:27:48 Z khanhtb Rarest Insects (IOI22_insects) C++17
99.95 / 100
 45 ms 1180 KB 
#include<bits/stdc++.h>
#include "insects.h"
#define ll int
#define ull unsigned long long
#define ld double
#define pb push_back
#define pf push_front
#define vi vector<ll>
#define vii vector<vi>
#define pll pair<ll,ll>
#define vpll vector<pll>
#define all(a) a.begin(), a.end()
#define fi first
#define se second
using namespace std;
const ll mod = 1e9+7;
const ll inf = 1e18;
const ll base = 31;
const ll blocksz = 320;
const ll N = 1e5+8;
multiset<int> in_machine;
map<int,multiset<int>> max_k;
vector<int> reset;
int n,d;
void add(ll i){
    move_inside(i);
    in_machine.insert(i);
}
void del(ll i){
    move_outside(i);
    in_machine.erase(in_machine.find(i));
}
bool check(int m){
    reset.clear();
    auto mk = *max_k.lower_bound(m);
    for(int p:mk.se){
        if(in_machine.find(p) != in_machine.end()) continue;
        if((int)in_machine.size() >= d*m) return 1;
        add(p);
        if(press_button() > m) del(p);
        else reset.pb(p);
    }
    max_k[m] = in_machine;
    if((int)in_machine.size() >= d*m) return 1;
    return 0;
}
int min_cardinality(int n){
    for(int i = 0; i < n; i++){
        add(i);
        if(press_button() > 1) del(i);
    }
    d = (int)in_machine.size();
    max_k[1] = in_machine;
    for(int i = 0; i < n; i++) max_k[n].insert(i);
    int ans = 1;
    int l = 2, r = n/d;
    while(l <= r){
        int m = l+r>>1;
        if(check(m)){
            ans = m;
            l = m+1;
        }
        else{
            r = m-1;
            for(int i:reset) del(i);
        }
    }
    return ans;
}

Compilation message

insects.cpp:17:16: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   17 | const ll inf = 1e18;
      |                ^~~~
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:58:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   58 |         int m = l+r>>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 3 ms 452 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 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 4 ms 460 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 5 ms 344 KB Output is correct
18 Correct 2 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 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 3 ms 452 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 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 4 ms 460 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 5 ms 344 KB Output is correct
18 Correct 2 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 7 ms 600 KB Output is correct
24 Correct 3 ms 344 KB Output is correct
25 Correct 11 ms 600 KB Output is correct
26 Correct 12 ms 600 KB Output is correct
27 Correct 19 ms 428 KB Output is correct
28 Correct 7 ms 696 KB Output is correct
29 Correct 9 ms 344 KB Output is correct
30 Correct 10 ms 344 KB Output is correct
31 Correct 10 ms 592 KB Output is correct
32 Correct 10 ms 592 KB Output is correct
33 Correct 12 ms 592 KB Output is correct
34 Correct 10 ms 600 KB Output is correct
35 Correct 11 ms 536 KB Output is correct
36 Correct 11 ms 344 KB Output is correct
37 Correct 11 ms 600 KB Output is correct
38 Correct 10 ms 344 KB Output is correct
39 Correct 11 ms 600 KB Output is correct
40 Correct 7 ms 600 KB Output is correct
41 Correct 5 ms 600 KB Output is correct

Subtask #3
74.95 / 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 17 ms 684 KB Output is correct
8 Correct 10 ms 700 KB Output is correct
9 Correct 21 ms 848 KB Output is correct
10 Correct 34 ms 684 KB Output is correct
11 Correct 24 ms 596 KB Output is correct
12 Correct 19 ms 712 KB Output is correct
13 Correct 31 ms 848 KB Output is correct
14 Correct 34 ms 684 KB Output is correct
15 Correct 35 ms 1180 KB Output is correct
16 Correct 24 ms 884 KB Output is correct
17 Correct 31 ms 924 KB Output is correct
18 Correct 25 ms 860 KB Output is correct
19 Correct 21 ms 960 KB Output is correct
20 Correct 18 ms 960 KB Output is correct
21 Correct 23 ms 848 KB Output is correct
22 Correct 34 ms 664 KB Output is correct
23 Correct 32 ms 852 KB Output is correct
24 Correct 19 ms 712 KB Output is correct
25 Correct 14 ms 860 KB Output is correct
26 Correct 9 ms 600 KB Output is correct
27 Correct 28 ms 684 KB Output is correct
28 Correct 15 ms 592 KB Output is correct
29 Correct 32 ms 848 KB Output is correct
30 Correct 45 ms 848 KB Output is correct
31 Correct 26 ms 864 KB Output is correct
32 Correct 35 ms 908 KB Output is correct
33 Correct 32 ms 848 KB Output is correct
34 Correct 26 ms 848 KB Output is correct
35 Partially correct 34 ms 624 KB Output is partially correct
36 Correct 29 ms 848 KB Output is correct
37 Correct 27 ms 816 KB Output is correct
38 Correct 36 ms 848 KB Output is correct
39 Correct 36 ms 848 KB Output is correct
40 Correct 12 ms 652 KB Output is correct
41 Correct 25 ms 848 KB Output is correct
42 Partially correct 31 ms 596 KB Output is partially correct
43 Correct 4 ms 344 KB Output is correct
44 Correct 23 ms 592 KB Output is correct
45 Correct 14 ms 880 KB Output is correct
46 Correct 13 ms 600 KB Output is correct
47 Correct 16 ms 728 KB Output is correct
48 Correct 10 ms 600 KB Output is correct