QOJ.ac

QOJ

ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#793841	#4565. Rarest Insects	_8_8_	96.02	26ms	4260kb	C++20	1.7kb	2024-11-30 02:25:08	2024-11-30 02:25:13

Judging History

你现在查看的是最新测评结果

[2024-11-30 02:25:13]
评测

测评结果：96.02
用时：26ms
内存：4260kb

查看

[2024-11-30 02:25:08]
提交

answer

#include "insects.h"
#include <bits/stdc++.h> 

using namespace std;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int n, u;
vector<int> p;
set<int> cur, lef;
void add(int i) {
    cur.insert(i);
    move_inside(i);
}
void del(int i) {
    if(cur.count(i)) {
        cur.erase(i);
        move_outside(i);
    }
}
int l , r;
bool check(int mid) {
    if(mid * u > n) return false;
    int col = 0;
    int val = (int)lef.size() + (int)cur.size();
    int it = 0;
    for(int i : lef) {
        add(i); 
        if(press_button() > mid) {
            del(i);
            col++;
        }
        it++;
    }
    if(col == val - mid * u) {
        set<int> nv;
        for(int i : lef) {
            if(!cur.count(i)) { 
                nv.insert(i);
            }
        }
        lef.swap(nv);
        return 1;
    }
    // l = max(l, mid - (col - val + mid * u));
    set<int> nv;
    for(int i : lef) {
        if(cur.count(i)) {
            nv.insert(i);
        }
        del(i);
    }
    lef.swap(nv);
    return false;
}
int min_cardinality(int NN) {
    n = NN;
    for(int i = 0; i < n; i++) {
        lef.insert(i);
    }
    for(int i = 0; i < n; i++) {
        add(i);
        if(press_button() == 2) {
            del(i);
        } else {
            lef.erase(i);
        }
    }
    u = (int)cur.size();
    l = 1, r = n + 1;
    // l + (r - l) / 3
    while(r - l > 1) {
        int mid = (l * 2 + r) / 3;
        if(r - l < 4) {
            mid = (l + r) >> 1;
        } else if(rng()% 3 == 0) {
            mid = (l + r) >> 1;
        }
        if(check(mid)) {
            l = mid;
        } else {
            r = mid;
        }
    }
    return l;
}

Source code, Language: C++20

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 10

Accepted

Test #1:

score: 10

Accepted

time: 1ms

memory: 4076kb

input:

output:

result:

ok

Test #2:

score: 10

Accepted

time: 1ms

memory: 3864kb

input:

output:

result:

ok

Test #3:

score: 10

Accepted

time: 0ms

memory: 4032kb

input:

2
1
1

output:

result:

ok

Test #4:

score: 10

Accepted

time: 0ms

memory: 3800kb

input:

output:

result:

ok

Test #5:

score: 10

Accepted

time: 0ms

memory: 3796kb

input:

output:

result:

ok

Test #6:

score: 10

Accepted

time: 0ms

memory: 3844kb

input:

output:

result:

ok

Test #7:

score: 10

Accepted

time: 4ms

memory: 3856kb

input:

output:

result:

ok

Test #8:

score: 10

Accepted

time: 1ms

memory: 3808kb

input:

output:

result:

ok

Test #9:

score: 10

Accepted

time: 0ms

memory: 3860kb

input:

output:

result:

ok

Test #10:

score: 10

Accepted

time: 0ms

memory: 4052kb

input:

output:

result:

ok

Test #11:

score: 10

Accepted

time: 3ms

memory: 3840kb

input:

output:

result:

ok

Test #12:

score: 10

Accepted

time: 0ms

memory: 3852kb

input:

output:

result:

ok

Test #13:

score: 10

Accepted

time: 3ms

memory: 3848kb

input:

output:

result:

ok

Test #14:

score: 10

Accepted

time: 3ms

memory: 4008kb

input:

output:

result:

ok

Test #15:

score: 10

Accepted

time: 5ms

memory: 3952kb

input:

output:

result:

ok

Test #16:

score: 10

Accepted

time: 1ms

memory: 3816kb

input:

output:

result:

ok

Test #17:

score: 10

Accepted

time: 2ms

memory: 4084kb

input:

output:

result:

ok

Test #18:

score: 10

Accepted

time: 3ms

memory: 3856kb

input:

output:

result:

ok

Test #19:

score: 10

Accepted

time: 2ms

memory: 4080kb

input:

output:

result:

ok

Test #20:

score: 10

Accepted

time: 3ms

memory: 4076kb

input:

output:

result:

ok

Test #21:

score: 10

Accepted

time: 3ms

memory: 3788kb

input:

output:

result:

ok

Test #22:

score: 10

Accepted

time: 0ms

memory: 3948kb

input:

output:

result:

ok

Test #23:

score: 10

Accepted

time: 2ms

memory: 3948kb

input:

output:

result:

ok

Subtask #2:

score: 15

Accepted

Test #24:

score: 15

Accepted

time: 0ms

memory: 3892kb

input:

output:

result:

ok

Test #25:

score: 15

Accepted

time: 0ms

memory: 3848kb

input:

output:

result:

ok

Test #26:

score: 15

Accepted

time: 7ms

memory: 4160kb

input:

output:

result:

ok

Test #27:

score: 15

Accepted

time: 0ms

memory: 4104kb

input:

output:

result:

ok

Test #28:

score: 15

Accepted

time: 8ms

memory: 3920kb

input:

output:

result:

ok

Test #29:

score: 15

Accepted

time: 6ms

memory: 4108kb

input:

output:

result:

ok

Test #30:

score: 15

Accepted

time: 0ms

memory: 4068kb

input:

output:

result:

ok

Test #31:

score: 15

Accepted

time: 4ms

memory: 4000kb

input:

output:

result:

ok

Test #32:

score: 15

Accepted

time: 8ms

memory: 4160kb

input:

output:

result:

ok

Test #33:

score: 15

Accepted

time: 6ms

memory: 3892kb

input:

output:

result:

ok

Test #34:

score: 15

Accepted

time: 9ms

memory: 4152kb

input:

output:

result:

ok

Test #35:

score: 15

Accepted

time: 5ms

memory: 4160kb

input:

output:

result:

ok

Test #36:

score: 15

Accepted

time: 4ms

memory: 3844kb

input:

output:

result:

ok

Test #37:

score: 15

Accepted

time: 11ms

memory: 3944kb

input:

output:

result:

ok

Test #38:

score: 15

Accepted

time: 26ms

memory: 4012kb

input:

output:

result:

ok

Test #39:

score: 15

Accepted

time: 0ms

memory: 3932kb

input:

output:

result:

ok

Test #40:

score: 15

Accepted

time: 0ms

memory: 4104kb

input:

output:

result:

ok

Test #41:

score: 15

Accepted

time: 0ms

memory: 3900kb

input:

output:

result:

ok

Test #42:

score: 15

Accepted

time: 4ms

memory: 3892kb

input:

output:

result:

ok

Subtask #3:

score: 71.02

Acceptable Answer

Test #43:

score: 75

Accepted

time: 1ms

memory: 4052kb

input:

output:

result:

ok

Test #44:

score: 75

Accepted

time: 0ms

memory: 3804kb

input:

2
1
1

output:

result:

ok

Test #45:

score: 75

Accepted

time: 0ms

memory: 3772kb

input:

output:

result:

ok

Test #46:

score: 75

Accepted

time: 0ms

memory: 4032kb

input:

output:

result:

ok

Test #47:

score: 75

Accepted

time: 0ms

memory: 4076kb

input:

output:

result:

ok

Test #48:

score: 71.02

Acceptable Answer

time: 3ms

memory: 4048kb

input:

output:

result:

points 0.94693333330 points  0.94693333330

Test #49:

score: 75

Accepted

time: 3ms

memory: 4152kb

input:

output:

result:

ok

Test #50:

score: 75

Accepted

time: 18ms

memory: 4032kb

input:

output:

result:

ok

Test #51:

score: 73.17

Acceptable Answer

time: 13ms

memory: 4236kb

input:

output:

result:

points 0.97560 points  0.97560

Test #52:

score: 75

Accepted

time: 7ms

memory: 4192kb

input:

output:

result:

ok

Test #53:

score: 75

Accepted

time: 4ms

memory: 3928kb

input:

output:

result:

ok

Test #54:

score: 75

Accepted

time: 4ms

memory: 3940kb

input:

output:

result:

ok

Test #55:

score: 74.07

Acceptable Answer

time: 6ms

memory: 3944kb

input:

output:

result:

points 0.98760 points  0.98760

Test #56:

score: 75

Accepted

time: 4ms

memory: 4200kb

input:

output:

result:

ok

Test #57:

score: 75

Accepted

time: 9ms

memory: 3996kb

input:

output:

result:

ok

Test #58:

score: 74.09

Acceptable Answer

time: 11ms

memory: 3988kb

input:

output:

result:

points 0.98786666670 points  0.98786666670

Test #59:

score: 75

Accepted

time: 12ms

memory: 3984kb

input:

output:

result:

ok

Test #60:

score: 75

Accepted

time: 9ms

memory: 4120kb

input:

output:

result:

ok

Test #61:

score: 75

Accepted

time: 6ms

memory: 4260kb

input:

output:

result:

ok

Test #62:

score: 74.54

Acceptable Answer

time: 11ms

memory: 4028kb

input:

output:

result:

points 0.99386666670 points  0.99386666670

Test #63:

score: 71.47

Acceptable Answer

time: 4ms

memory: 4204kb

input:

output:

result:

points 0.95293333330 points  0.95293333330

Test #64:

score: 75

Accepted

time: 4ms

memory: 3928kb

input:

output:

result:

ok

Test #65:

score: 75

Accepted

time: 5ms

memory: 4052kb

input:

output:

result:

ok

Test #66:

score: 75

Accepted

time: 3ms

memory: 3916kb

input:

output:

result:

ok

Test #67:

score: 75

Accepted

time: 0ms

memory: 3892kb

input:

output:

result:

ok

Test #68:

score: 75

Accepted

time: 5ms

memory: 3960kb

input:

output:

result:

ok

Test #69:

score: 75

Accepted

time: 15ms

memory: 3952kb

input:

output:

result:

ok

Test #70:

score: 75

Accepted

time: 15ms

memory: 4028kb

input:

output:

result:

ok

Test #71:

score: 74.64

Acceptable Answer

time: 17ms

memory: 3932kb

input:

output:

result:

points 0.99520 points  0.99520

Test #72:

score: 73.25

Acceptable Answer

time: 0ms

memory: 4020kb

input:

output:

result:

points 0.97666666670 points  0.97666666670

Test #73:

score: 74.15

Acceptable Answer

time: 13ms

memory: 3924kb

input:

output:

result:

points 0.98866666670 points  0.98866666670

Test #74:

score: 75

Accepted

time: 8ms

memory: 3948kb

input:

output:

result:

ok

Test #75:

score: 74.56

Acceptable Answer

time: 3ms

memory: 3936kb

input:

output:

result:

points 0.99413333330 points  0.99413333330

Test #76:

score: 75

Accepted

time: 0ms

memory: 3956kb

input:

output:

result:

ok

Test #77:

score: 75

Accepted

time: 6ms

memory: 4044kb

input:

output:

result:

ok

Test #78:

score: 72.49

Acceptable Answer

time: 10ms

memory: 4208kb

input:

output:

result:

points 0.96653333330 points  0.96653333330

Test #79:

score: 73.61

Acceptable Answer

time: 18ms

memory: 4004kb

input:

output:

result:

points 0.98146666670 points  0.98146666670

Test #80:

score: 75

Accepted

time: 10ms

memory: 4212kb

input:

output:

result:

ok

Test #81:

score: 75

Accepted

time: 10ms

memory: 3960kb

input:

output:

result:

ok

Test #82:

score: 75

Accepted

time: 3ms

memory: 3980kb

input:

output:

result:

ok

Test #83:

score: 75

Accepted

time: 0ms

memory: 4104kb

input:

output:

result:

ok

Test #84:

score: 75

Accepted

time: 9ms

memory: 3804kb

input:

output:

result:

ok

Test #85:

score: 75

Accepted

time: 4ms

memory: 3952kb

input:

output:

result:

ok

Test #86:

score: 71.51

Acceptable Answer

time: 18ms

memory: 4256kb

input:

output:

result:

points 0.95346666670 points  0.95346666670

Test #87:

score: 75

Accepted

time: 6ms

memory: 3880kb

input:

output:

result:

ok

Test #88:

score: 75

Accepted

time: 0ms

memory: 3952kb

input:

output:

result:

ok

Test #89:

score: 75

Accepted

time: 20ms

memory: 4156kb

input:

output:

result:

ok