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ID	题目	提交者	结果	用时	内存	语言	文件大小	提交时间	测评时间
#430259	#4565. Rarest Insects	james1BadCreeper	63.06	35ms	4300kb	C++17	1.9kb	2024-06-03 16:47:54	2024-06-03 16:47:55

Judging History

你现在查看的是最新测评结果

[2024-06-03 16:47:55]
评测

测评结果：63.06
用时：35ms
内存：4300kb

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[2024-06-03 16:47:54]
提交

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; 
}

源文件, 语言: C++17

詳細信息

Subtask #1:

score: 10

Accepted

Test #1:

score: 10

Accepted

time: 1ms

memory: 3980kb

input:

output:

result:

ok

Test #2:

score: 10

Accepted

time: 1ms

memory: 3972kb

input:

2
1
2

output:

result:

ok

Test #3:

score: 10

Accepted

time: 0ms

memory: 3888kb

input:

2
1
1

output:

result:

ok

Test #4:

score: 10

Accepted

time: 0ms

memory: 3960kb

input:

output:

result:

ok

Test #5:

score: 10

Accepted

time: 1ms

memory: 4196kb

input:

output:

result:

ok

Test #6:

score: 10

Accepted

time: 0ms

memory: 3896kb

input:

output:

result:

ok

Test #7:

score: 10

Accepted

time: 2ms

memory: 3932kb

input:

output:

result:

ok

Test #8:

score: 10

Accepted

time: 2ms

memory: 3896kb

input:

output:

result:

ok

Test #9:

score: 10

Accepted

time: 3ms

memory: 4204kb

input:

output:

result:

ok

Test #10:

score: 10

Accepted

time: 4ms

memory: 3960kb

input:

output:

result:

ok

Test #11:

score: 10

Accepted

time: 6ms

memory: 4172kb

input:

output:

result:

ok

Test #12:

score: 10

Accepted

time: 2ms

memory: 3916kb

input:

output:

result:

ok

Test #13:

score: 10

Accepted

time: 7ms

memory: 3904kb

input:

output:

result:

ok

Test #14:

score: 10

Accepted

time: 0ms

memory: 3900kb

input:

output:

result:

ok

Test #15:

score: 10

Accepted

time: 3ms

memory: 4168kb

input:

output:

result:

ok

Test #16:

score: 10

Accepted

time: 1ms

memory: 3908kb

input:

output:

result:

ok

Test #17:

score: 10

Accepted

time: 0ms

memory: 3876kb

input:

output:

result:

ok

Test #18:

score: 10

Accepted

time: 4ms

memory: 3876kb

input:

output:

result:

ok

Test #19:

score: 10

Accepted

time: 5ms

memory: 3908kb

input:

output:

result:

ok

Test #20:

score: 10

Accepted

time: 3ms

memory: 3912kb

input:

output:

result:

ok

Test #21:

score: 10

Accepted

time: 0ms

memory: 3964kb

input:

output:

result:

ok

Test #22:

score: 10

Accepted

time: 2ms

memory: 3852kb

input:

output:

result:

ok

Test #23:

score: 10

Accepted

time: 2ms

memory: 3868kb

input:

output:

result:

ok

Subtask #2:

score: 15

Accepted

Test #24:

score: 15

Accepted

time: 0ms

memory: 3924kb

input:

output:

result:

ok

Test #25:

score: 15

Accepted

time: 0ms

memory: 3904kb

input:

output:

result:

ok

Test #26:

score: 15

Accepted

time: 0ms

memory: 4020kb

input:

output:

result:

ok

Test #27:

score: 15

Accepted

time: 0ms

memory: 4252kb

input:

output:

result:

ok

Test #28:

score: 15

Accepted

time: 7ms

memory: 4224kb

input:

output:

result:

ok

Test #29:

score: 15

Accepted

time: 0ms

memory: 3912kb

input:

output:

result:

ok

Test #30:

score: 15

Accepted

time: 15ms

memory: 3956kb

input:

output:

result:

ok

Test #31:

score: 15

Accepted

time: 16ms

memory: 3964kb

input:

output:

result:

ok

Test #32:

score: 15

Accepted

time: 5ms

memory: 3928kb

input:

output:

result:

ok

Test #33:

score: 15

Accepted

time: 3ms

memory: 3960kb

input:

output:

result:

ok

Test #34:

score: 15

Accepted

time: 6ms

memory: 3900kb

input:

output:

result:

ok

Test #35:

score: 15

Accepted

time: 2ms

memory: 3904kb

input:

output:

result:

ok

Test #36:

score: 15

Accepted

time: 0ms

memory: 4016kb

input:

output:

result:

ok

Test #37:

score: 15

Accepted

time: 17ms

memory: 3956kb

input:

output:

result:

ok

Test #38:

score: 15

Accepted

time: 0ms

memory: 3952kb

input:

output:

result:

ok

Test #39:

score: 15

Accepted

time: 7ms

memory: 3984kb

input:

output:

result:

ok

Test #40:

score: 15

Accepted

time: 11ms

memory: 3892kb

input:

output:

result:

ok

Test #41:

score: 15

Accepted

time: 0ms

memory: 3932kb

input:

output:

result:

ok

Test #42:

score: 15

Accepted

time: 3ms

memory: 4200kb

input:

output:

result:

ok

Subtask #3:

score: 38.06

Acceptable Answer

Test #43:

score: 75

Accepted

time: 1ms

memory: 3892kb

input:

2
1
2

output:

result:

ok

Test #44:

score: 75

Accepted

time: 1ms

memory: 3900kb

input:

2
1
1

output:

result:

ok

Test #45:

score: 75

Accepted

time: 1ms

memory: 3896kb

input:

output:

result:

ok

Test #46:

score: 75

Accepted

time: 0ms

memory: 3928kb

input:

output:

result:

ok

Test #47:

score: 75

Accepted

time: 0ms

memory: 3900kb

input:

output:

result:

ok

Test #48:

score: 75

Accepted

time: 6ms

memory: 4184kb

input:

output:

result:

ok

Test #49:

score: 75

Accepted

time: 2ms

memory: 3880kb

input:

output:

result:

ok

Test #50:

score: 75

Accepted

time: 14ms

memory: 4300kb

input:

output:

result:

ok

Test #51:

score: 70.6

Acceptable Answer

time: 4ms

memory: 3892kb

input:

output:

result:

points 0.94133333330 points  0.94133333330

Test #52:

score: 45.05

Acceptable Answer

time: 34ms

memory: 4012kb

input:

output:

result:

points 0.60066666670 points  0.60066666670

Test #53:

score: 75

Accepted

time: 0ms

memory: 3996kb

input:

output:

result:

ok

Test #54:

score: 38.06

Acceptable Answer

time: 33ms

memory: 4008kb

input:

output:

result:

points 0.50746666670 points  0.50746666670

Test #55:

score: 57.87

Acceptable Answer

time: 35ms

memory: 4080kb

input:

output:

result:

points 0.77160 points  0.77160

Test #56:

score: 75

Accepted

time: 15ms

memory: 4028kb

input:

output:

result:

ok

Test #57:

score: 75

Accepted

time: 5ms

memory: 4072kb

input:

output:

result:

ok

Test #58:

score: 75

Accepted

time: 10ms

memory: 4268kb

input:

output:

result:

ok

Test #59:

score: 75

Accepted

time: 5ms

memory: 4012kb

input:

output:

result:

ok

Test #60:

score: 75

Accepted

time: 21ms

memory: 3952kb

input:

output:

result:

ok

Test #61:

score: 75

Accepted

time: 6ms

memory: 4300kb

input:

output:

result:

ok

Test #62:

score: 72.4

Acceptable Answer

time: 13ms

memory: 3952kb

input:

output:

result:

points 0.96533333330 points  0.96533333330

Test #63:

score: 73.13

Acceptable Answer

time: 8ms

memory: 4296kb

input:

output:

result:

points 0.97506666670 points  0.97506666670

Test #64:

score: 71.88

Acceptable Answer

time: 4ms

memory: 4008kb

input:

output:

result:

points 0.95840 points  0.95840

Test #65:

score: 75

Accepted

time: 13ms

memory: 4284kb

input:

output:

result:

ok

Test #66:

score: 75

Accepted

time: 7ms

memory: 4044kb

input:

output:

result:

ok

Test #67:

score: 75

Accepted

time: 0ms

memory: 3908kb

input:

output:

result:

ok

Test #68:

score: 75

Accepted

time: 9ms

memory: 4008kb

input:

output:

result:

ok

Test #69:

score: 75

Accepted

time: 4ms

memory: 4008kb

input:

output:

result:

ok

Test #70:

score: 75

Accepted

time: 7ms

memory: 4268kb

input:

output:

result:

ok

Test #71:

score: 75

Accepted

time: 3ms

memory: 4012kb

input:

output:

result:

ok

Test #72:

score: 70.97

Acceptable Answer

time: 9ms

memory: 4020kb

input:

output:

result:

points 0.94626666670 points  0.94626666670

Test #73:

score: 71.34

Acceptable Answer

time: 9ms

memory: 4300kb

input:

output:

result:

points 0.95120 points  0.95120

Test #74:

score: 68.68

Acceptable Answer

time: 19ms

memory: 3964kb

input:

output:

result:

points 0.91573333330 points  0.91573333330

Test #75:

score: 68.75

Acceptable Answer

time: 4ms

memory: 4264kb

input:

output:

result:

points 0.91666666670 points  0.91666666670

Test #76:

score: 75

Accepted

time: 5ms

memory: 3996kb

input:

output:

result:

ok

Test #77:

score: 75

Accepted

time: 19ms

memory: 3996kb

input:

output:

result:

ok

Test #78:

score: 73.22

Acceptable Answer

time: 5ms

memory: 4084kb

input:

output:

result:

points 0.97626666670 points  0.97626666670

Test #79:

score: 73.68

Acceptable Answer

time: 19ms

memory: 4020kb

input:

output:

result:

points 0.98240 points  0.98240

Test #80:

score: 75

Accepted

time: 12ms

memory: 4300kb

input:

output:

result:

ok

Test #81:

score: 75

Accepted

time: 11ms

memory: 4032kb

input:

output:

result:

ok

Test #82:

score: 75

Accepted

time: 8ms

memory: 3976kb

input:

output:

result:

ok

Test #83:

score: 75

Accepted

time: 10ms

memory: 4300kb

input:

output:

result:

ok

Test #84:

score: 64.63

Acceptable Answer

time: 4ms

memory: 3940kb

input:

output:

result:

points 0.86173333330 points  0.86173333330

Test #85:

score: 57.15

Acceptable Answer

time: 13ms

memory: 4040kb

input:

output:

result:

points 0.7620 points  0.7620

Test #86:

score: 75

Accepted

time: 15ms

memory: 4004kb

input:

output:

result:

ok

Test #87:

score: 75

Accepted

time: 18ms

memory: 3952kb

input:

output:

result:

ok

Test #88:

score: 75

Accepted

time: 9ms

memory: 3956kb

input:

output:

result:

ok

Test #89:

score: 75

Accepted

time: 11ms

memory: 4260kb

input:

output:

result:

ok