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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#430260	#4565. Rarest Insects	james1BadCreeper	63.1	26ms	4248kb	C++17	1.9kb	2024-06-03 16:48:30	2024-06-03 16:48:31

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你现在查看的是最新测评结果

[2024-06-03 16:48:31]
评测

测评结果：63.1
用时：26ms
内存：4248kb

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[2024-06-03 16:48:30]
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answer

#include "insects.h"
#include <bits/stdc++.h>
using namespace std; 
const int N = 2e3 + 5; 

// 最多问 3n 次询问
int n, m, k, always_no[N], id[N]; 
vector<int> arr; 
bool in[N]; 
mt19937 Rand(time(0)); 

inline void Move_inside(int x) { move_inside(id[x] - 1); }
inline void Move_outside(int x) { move_outside(id[x] - 1); }
int check(int x) { // 最罕见的昆虫是否能 >= x
    int cnt = n - arr.size(); 
    // shuffle(arr.begin(), arr.end(), Rand); 

    set<int> newarr; 
    for (int i : arr) newarr.insert(i); 

    shuffle(arr.begin(), arr.end(), Rand); 
    for (int i : arr) {
        if (cnt == k * x) break; 
        Move_inside(i); in[i] = 1; ++cnt; newarr.erase(i); 
        if (press_button() > x) {
            Move_outside(i); in[i] = 0; --cnt; newarr.insert(i); 
            // if (cnt < k * x) {
                // for (int i : arr)
                    // if (in[i]) Move_outside(i), in[i] = 0; 
                // return cnt; 
            // }
        }
    }
    if (cnt == k * x) {
        arr.clear(); 
        for (int i : newarr) arr.emplace_back(i); 
        // for (int i : newarr) in[i] = 0; 
        return -1; 
    }
    for (int i : arr)
        if (in[i]) Move_outside(i), in[i] = 0; 
    return cnt; 
}

int min_cardinality(int N) {
    n = N; 
    k = n; 
    for (int i = 1; i <= n; ++i) always_no[i] = 0, id[i] = i; 
    shuffle(id + 1, id + n + 1, Rand); 
    for (int i = 1; i <= n; ++i) {
        Move_inside(i); 
        if (press_button() > 1) Move_outside(i), --k, arr.emplace_back(i);  
    }
    if (k == 1) return n; 

    // 最罕见的出现次数是 1，当且仅当什么时候？
    int L = 1, R = n / k + 1; // [2, n / k]

    while (L + 1 != R) {
        int mid = L + R >> 1; 
        int val = check(mid); 
        if (val == -1) L = mid; 
        else R = min(mid, max(L + 1, val / k + 1)); 
    }
    return L; 
}

Source code, Language: C++17

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 10

Accepted

Test #1:

score: 10

Accepted

time: 0ms

memory: 4084kb

input:

output:

result:

ok

Test #2:

score: 0

Accepted

time: 1ms

memory: 3868kb

input:

2
1
2

output:

result:

ok

Test #3:

score: 0

Accepted

time: 1ms

memory: 3848kb

input:

2
1
1

output:

result:

ok

Test #4:

score: 0

Accepted

time: 0ms

memory: 3888kb

input:

output:

result:

ok

Test #5:

score: 0

Accepted

time: 1ms

memory: 3860kb

input:

output:

result:

ok

Test #6:

score: 0

Accepted

time: 1ms

memory: 4092kb

input:

output:

result:

ok

Test #7:

score: 0

Accepted

time: 2ms

memory: 3868kb

input:

output:

result:

ok

Test #8:

score: 0

Accepted

time: 2ms

memory: 4120kb

input:

output:

result:

ok

Test #9:

score: 0

Accepted

time: 3ms

memory: 3852kb

input:

output:

result:

ok

Test #10:

score: 0

Accepted

time: 4ms

memory: 4096kb

input:

output:

result:

ok

Test #11:

score: 0

Accepted

time: 4ms

memory: 3880kb

input:

output:

result:

ok

Test #12:

score: 0

Accepted

time: 2ms

memory: 3872kb

input:

output:

result:

ok

Test #13:

score: 0

Accepted

time: 0ms

memory: 4132kb

input:

output:

result:

ok

Test #14:

score: 0

Accepted

time: 4ms

memory: 3796kb

input:

output:

result:

ok

Test #15:

score: 0

Accepted

time: 2ms

memory: 3816kb

input:

output:

result:

ok

Test #16:

score: 0

Accepted

time: 3ms

memory: 3868kb

input:

output:

result:

ok

Test #17:

score: 0

Accepted

time: 3ms

memory: 4132kb

input:

output:

result:

ok

Test #18:

score: 0

Accepted

time: 2ms

memory: 3872kb

input:

output:

result:

ok

Test #19:

score: 0

Accepted

time: 0ms

memory: 3868kb

input:

output:

result:

ok

Test #20:

score: 0

Accepted

time: 3ms

memory: 3860kb

input:

output:

result:

ok

Test #21:

score: 0

Accepted

time: 0ms

memory: 4128kb

input:

output:

result:

ok

Test #22:

score: 0

Accepted

time: 1ms

memory: 3800kb

input:

output:

result:

ok

Test #23:

score: 0

Accepted

time: 1ms

memory: 3804kb

input:

output:

result:

ok

Subtask #2:

score: 15

Accepted

Test #24:

score: 15

Accepted

time: 0ms

memory: 3836kb

input:

output:

result:

ok

Test #25:

score: 0

Accepted

time: 0ms

memory: 3816kb

input:

output:

result:

ok

Test #26:

score: 0

Accepted

time: 5ms

memory: 3924kb

input:

output:

result:

ok

Test #27:

score: 0

Accepted

time: 8ms

memory: 3864kb

input:

output:

result:

ok

Test #28:

score: 0

Accepted

time: 7ms

memory: 3924kb

input:

output:

result:

ok

Test #29:

score: 0

Accepted

time: 0ms

memory: 3892kb

input:

output:

result:

ok

Test #30:

score: 0

Accepted

time: 5ms

memory: 3872kb

input:

output:

result:

ok

Test #31:

score: 0

Accepted

time: 11ms

memory: 3796kb

input:

output:

result:

ok

Test #32:

score: 0

Accepted

time: 0ms

memory: 3936kb

input:

output:

result:

ok

Test #33:

score: 0

Accepted

time: 0ms

memory: 3948kb

input:

output:

result:

ok

Test #34:

score: 0

Accepted

time: 3ms

memory: 3936kb

input:

output:

result:

ok

Test #35:

score: 0

Accepted

time: 0ms

memory: 4148kb

input:

output:

result:

ok

Test #36:

score: 0

Accepted

time: 0ms

memory: 3868kb

input:

output:

result:

ok

Test #37:

score: 0

Accepted

time: 4ms

memory: 3948kb

input:

output:

result:

ok

Test #38:

score: 0

Accepted

time: 10ms

memory: 3944kb

input:

output:

result:

ok

Test #39:

score: 0

Accepted

time: 8ms

memory: 3832kb

input:

output:

result:

ok

Test #40:

score: 0

Accepted

time: 8ms

memory: 3900kb

input:

output:

result:

ok

Test #41:

score: 0

Accepted

time: 0ms

memory: 3836kb

input:

output:

result:

ok

Test #42:

score: 0

Accepted

time: 6ms

memory: 4116kb

input:

output:

result:

ok

Subtask #3:

score: 38.1

Acceptable Answer

Test #43:

score: 75

Accepted

time: 1ms

memory: 4104kb

input:

2
1
2

output:

result:

ok

Test #44:

score: 75

Accepted

time: 0ms

memory: 4124kb

input:

2
1
1

output:

result:

ok

Test #45:

score: 75

Accepted

time: 0ms

memory: 3812kb

input:

output:

result:

ok

Test #46:

score: 75

Accepted

time: 0ms

memory: 3872kb

input:

output:

result:

ok

Test #47:

score: 75

Accepted

time: 1ms

memory: 4120kb

input:

output:

result:

ok

Test #48:

score: 75

Accepted

time: 6ms

memory: 4080kb

input:

output:

result:

ok

Test #49:

score: 75

Accepted

time: 4ms

memory: 3900kb

input:

output:

result:

ok

Test #50:

score: 75

Accepted

time: 18ms

memory: 3964kb

input:

output:

result:

ok

Test #51:

score: 70.6

Acceptable Answer

time: 19ms

memory: 4236kb

input:

output:

result:

points 0.94133333330 points  0.94133333330

Test #52:

score: 45.05

Acceptable Answer

time: 16ms

memory: 3936kb

input:

output:

result:

points 0.60066666670 points  0.60066666670

Test #53:

score: 75

Accepted

time: 0ms

memory: 3848kb

input:

output:

result:

ok

Test #54:

score: 38.1

Acceptable Answer

time: 19ms

memory: 4216kb

input:

output:

result:

points 0.5080 points  0.5080

Test #55:

score: 57.87

Acceptable Answer

time: 26ms

memory: 4216kb

input:

output:

result:

points 0.77160 points  0.77160

Test #56:

score: 75

Accepted

time: 10ms

memory: 3980kb

input:

output:

result:

ok

Test #57:

score: 75

Accepted

time: 5ms

memory: 4232kb

input:

output:

result:

ok

Test #58:

score: 75

Accepted

time: 5ms

memory: 3992kb

input:

output:

result:

ok

Test #59:

score: 75

Accepted

time: 21ms

memory: 3936kb

input:

output:

result:

ok

Test #60:

score: 75

Accepted

time: 0ms

memory: 3920kb

input:

output:

result:

ok

Test #61:

score: 75

Accepted

time: 0ms

memory: 3964kb

input:

output:

result:

ok

Test #62:

score: 72.94

Acceptable Answer

time: 16ms

memory: 3984kb

input:

output:

result:

points 0.97253333330 points  0.97253333330

Test #63:

score: 71.77

Acceptable Answer

time: 3ms

memory: 3964kb

input:

output:

result:

points 0.95693333330 points  0.95693333330

Test #64:

score: 71.88

Acceptable Answer

time: 10ms

memory: 3960kb

input:

output:

result:

points 0.95840 points  0.95840

Test #65:

score: 75

Accepted

time: 6ms

memory: 3908kb

input:

output:

result:

ok

Test #66:

score: 75

Accepted

time: 13ms

memory: 3928kb

input:

output:

result:

ok

Test #67:

score: 75

Accepted

time: 6ms

memory: 4100kb

input:

output:

result:

ok

Test #68:

score: 75

Accepted

time: 10ms

memory: 3924kb

input:

output:

result:

ok

Test #69:

score: 75

Accepted

time: 0ms

memory: 4224kb

input:

output:

result:

ok

Test #70:

score: 75

Accepted

time: 0ms

memory: 4156kb

input:

output:

result:

ok

Test #71:

score: 75

Accepted

time: 8ms

memory: 3916kb

input:

output:

result:

ok

Test #72:

score: 71.29

Acceptable Answer

time: 26ms

memory: 3976kb

input:

output:

result:

points 0.95053333330 points  0.95053333330

Test #73:

score: 71.08

Acceptable Answer

time: 6ms

memory: 3996kb

input:

output:

result:

points 0.94773333330 points  0.94773333330

Test #74:

score: 68.16

Acceptable Answer

time: 24ms

memory: 4248kb

input:

output:

result:

points 0.90880 points  0.90880

Test #75:

score: 67.45

Acceptable Answer

time: 11ms

memory: 3908kb

input:

output:

result:

points 0.89933333330 points  0.89933333330

Test #76:

score: 75

Accepted

time: 0ms

memory: 3988kb

input:

output:

result:

ok

Test #77:

score: 75

Accepted

time: 0ms

memory: 3956kb

input:

output:

result:

ok

Test #78:

score: 71.43

Acceptable Answer

time: 4ms

memory: 4196kb

input:

output:

result:

points 0.95240 points  0.95240

Test #79:

score: 72.73

Acceptable Answer

time: 8ms

memory: 4228kb

input:

output:

result:

points 0.96973333330 points  0.96973333330

Test #80:

score: 75

Accepted

time: 6ms

memory: 3912kb

input:

output:

result:

ok

Test #81:

score: 75

Accepted

time: 6ms

memory: 4192kb

input:

output:

result:

ok

Test #82:

score: 75

Accepted

time: 8ms

memory: 3904kb

input:

output:

result:

ok

Test #83:

score: 75

Accepted

time: 8ms

memory: 3976kb

input:

output:

result:

ok

Test #84:

score: 64.63

Acceptable Answer

time: 18ms

memory: 3808kb

input:

output:

result:

points 0.86173333330 points  0.86173333330

Test #85:

score: 57.15

Acceptable Answer

time: 21ms

memory: 3964kb

input:

output:

result:

points 0.7620 points  0.7620

Test #86:

score: 75

Accepted

time: 4ms

memory: 3904kb

input:

output:

result:

ok

Test #87:

score: 75

Accepted

time: 8ms

memory: 3936kb

input:

output:

result:

ok

Test #88:

score: 75

Accepted

time: 0ms

memory: 3948kb

input:

output:

result:

ok

Test #89:

score: 75

Accepted

time: 0ms

memory: 3908kb

input:

output:

result:

ok