oj.uz

Submission #936614

# Submission time Handle Problem Language Result Execution time Memory
936614 2024-03-02T11:46:37 Z GrindMachine Rarest Insects (IOI22_insects) C++17
50 / 100
 104 ms 1356 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
 
using namespace std;
using namespace __gnu_pbds;
 
template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
 
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) (int)a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x,y) ((x+y-1)/(y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl
 
#define rep(i,n) for(int i = 0; i < n; ++i)
#define rep1(i,n) for(int i = 1; i <= n; ++i)
#define rev(i,s,e) for(int i = s; i >= e; --i)
#define trav(i,a) for(auto &i : a)
 
template<typename T>
void amin(T &a, T b) {
    a = min(a,b);
}
 
template<typename T>
void amax(T &a, T b) {
    a = max(a,b);
}
 
#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif
 
/*
 
 
 
*/
 
const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;
 
#include "insects.h"
 
int min_cardinality(int n) {
    vector<int> uniq_guys;
 
    rep(i,n){
        move_inside(i);
        int res = press_button();
        if(res >= 2){
            move_outside(i);
        }
        else{
            uniq_guys.pb(i);
        }
    }
 
    trav(i,uniq_guys){
        move_outside(i);
    }
    
    if(sz(uniq_guys) == 1){
        return n;
    }
    
    auto ok = [&](int mid){
        vector<int> good, bad;
 
        rev(i,n-1,0){
            move_inside(i);
            int res = press_button();
            if(res > mid){
                bad.pb(i);
                move_outside(i);
            }
            else{
                good.pb(i);
            }
        }
 
        trav(i,good){
            move_outside(i);
        }

        int curr_uniq = 0;
        trav(i,bad){
            curr_uniq += binary_search(all(uniq_guys),i);
        }

        return curr_uniq < sz(uniq_guys);
    };
 
    int l = 1, r = n/sz(uniq_guys)-1;
    int ans = n/sz(uniq_guys);
 
    while(l <= r){
        int mid = (l+r) >> 1;
        // is min <= mid?
        if(ok(mid)){
            ans = mid;
            r = mid-1;
        }
        else{
            l = mid+1;
        }
    }
 
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 1 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 4 ms 600 KB Output is correct
9 Correct 4 ms 600 KB Output is correct
10 Correct 7 ms 600 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 6 ms 600 KB Output is correct
13 Correct 4 ms 600 KB Output is correct
14 Correct 5 ms 600 KB Output is correct
15 Correct 5 ms 344 KB Output is correct
16 Correct 4 ms 436 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 4 ms 600 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 2 ms 344 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 1 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 1 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 4 ms 600 KB Output is correct
9 Correct 4 ms 600 KB Output is correct
10 Correct 7 ms 600 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 6 ms 600 KB Output is correct
13 Correct 4 ms 600 KB Output is correct
14 Correct 5 ms 600 KB Output is correct
15 Correct 5 ms 344 KB Output is correct
16 Correct 4 ms 436 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 4 ms 600 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 4 ms 344 KB Output is correct
24 Correct 4 ms 600 KB Output is correct
25 Correct 31 ms 600 KB Output is correct
26 Correct 31 ms 668 KB Output is correct
27 Correct 50 ms 668 KB Output is correct
28 Correct 5 ms 600 KB Output is correct
29 Correct 35 ms 440 KB Output is correct
30 Correct 30 ms 436 KB Output is correct
31 Correct 41 ms 684 KB Output is correct
32 Correct 39 ms 844 KB Output is correct
33 Correct 36 ms 1188 KB Output is correct
34 Correct 35 ms 848 KB Output is correct
35 Correct 33 ms 852 KB Output is correct
36 Correct 32 ms 692 KB Output is correct
37 Correct 25 ms 1356 KB Output is correct
38 Correct 17 ms 856 KB Output is correct
39 Correct 14 ms 432 KB Output is correct
40 Correct 8 ms 436 KB Output is correct
41 Correct 4 ms 600 KB Output is correct

Subtask #3
25.0 / 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 1 ms 344 KB Output is correct
6 Partially correct 1 ms 344 KB Output is partially correct
7 Correct 13 ms 340 KB Output is correct
8 Correct 9 ms 944 KB Output is correct
9 Partially correct 68 ms 1104 KB Output is partially correct
10 Partially correct 60 ms 696 KB Output is partially correct
11 Partially correct 104 ms 932 KB Output is partially correct
12 Correct 18 ms 848 KB Output is correct
13 Partially correct 96 ms 424 KB Output is partially correct
14 Partially correct 54 ms 1184 KB Output is partially correct
15 Partially correct 90 ms 920 KB Output is partially correct
16 Partially correct 95 ms 1092 KB Output is partially correct
17 Partially correct 82 ms 1112 KB Output is partially correct
18 Partially correct 85 ms 1108 KB Output is partially correct
19 Partially correct 90 ms 916 KB Output is partially correct
20 Partially correct 78 ms 680 KB Output is partially correct
21 Partially correct 50 ms 924 KB Output is partially correct
22 Partially correct 57 ms 944 KB Output is partially correct
23 Partially correct 37 ms 672 KB Output is partially correct
24 Correct 28 ms 672 KB Output is correct
25 Correct 16 ms 856 KB Output is correct
26 Correct 11 ms 608 KB Output is correct
27 Partially correct 52 ms 1176 KB Output is partially correct
28 Partially correct 55 ms 928 KB Output is partially correct
29 Partially correct 67 ms 920 KB Output is partially correct
30 Partially correct 63 ms 1184 KB Output is partially correct
31 Partially correct 63 ms 932 KB Output is partially correct
32 Partially correct 57 ms 932 KB Output is partially correct
33 Partially correct 45 ms 588 KB Output is partially correct
34 Partially correct 47 ms 852 KB Output is partially correct
35 Partially correct 57 ms 1176 KB Output is partially correct
36 Partially correct 67 ms 1352 KB Output is partially correct
37 Partially correct 59 ms 856 KB Output is partially correct
38 Partially correct 54 ms 932 KB Output is partially correct
39 Partially correct 55 ms 924 KB Output is partially correct
40 Partially correct 45 ms 680 KB Output is partially correct
41 Partially correct 69 ms 928 KB Output is partially correct
42 Partially correct 72 ms 920 KB Output is partially correct
43 Partially correct 18 ms 856 KB Output is partially correct
44 Partially correct 74 ms 592 KB Output is partially correct
45 Partially correct 100 ms 908 KB Output is partially correct
46 Correct 18 ms 664 KB Output is correct
47 Correct 18 ms 600 KB Output is correct
48 Correct 18 ms 672 KB Output is correct