QOJ.ac

QOJ

ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#430020	#4565. Rarest Insects	james1BadCreeper^#	47.5	37ms	4120kb	C++17	1.4kb	2024-06-03 11:29:20	2024-06-03 11:29:22

Judging History

你现在查看的是最新测评结果

[2024-06-03 11:29:22]
评测

测评结果：47.5
用时：37ms
内存：4120kb

查看

[2024-06-03 11:29:20]
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; 
bool in[N]; 

void Move_inside(int x) { move_inside(x - 1); }
void Move_outside(int x) { move_outside(x - 1); }
bool check(int x) { // 最罕见的昆虫是否能 >= x
    int cnt = n; 
    for (int i = 1; i <= n; ++i) {
        Move_inside(i); in[i] = 1; 
        if (press_button() > x) {
            Move_outside(i), in[i] = 0, --cnt; 
            if (cnt < k * x) {
                for (int i = 1; i <= n; ++i)
                    if (in[i]) Move_outside(i), in[i] = 0; 
            }
        }
    }
    for (int i = 1; i <= n; ++i)
        if (in[i]) Move_outside(i); 
    return cnt == k * x; 
}
int min_cardinality(int N) {
    n = N; 
    k = n; 
    for (int i = 1; i <= n; ++i) {
        Move_inside(i), in[i] = 1; 
        if (press_button() > 1) Move_outside(i), in[i] = 0, --k; 
    }
    for (int i = 1; i <= n; ++i)
        if (in[i]) Move_outside(i); 
    int L = 0, R = n / k + 1; 
    while (L + 1 != R) {
        int mid = L + R >> 1; 
        if (check(mid)) L = mid; 
        else R = mid; 
    }
    return L; 
}

// 我们可以知道的信息：

// n 次代价知道昆虫种类数 k
// n 次代价知道最常见的昆虫基数

// 那么最罕见的昆虫的基数至多是 n / k
// 直接扫，

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: 1ms

memory: 3832kb

input:

output:

result:

ok

Test #2:

score: 10

Accepted

time: 0ms

memory: 3816kb

input:

output:

result:

ok

Test #3:

score: 10

Accepted

time: 0ms

memory: 3812kb

input:

output:

result:

ok

Test #4:

score: 10

Accepted

time: 1ms

memory: 4108kb

input:

output:

result:

ok

Test #5:

score: 10

Accepted

time: 1ms

memory: 3804kb

input:

output:

result:

ok

Test #6:

score: 10

Accepted

time: 1ms

memory: 3792kb

input:

output:

result:

ok

Test #7:

score: 10

Accepted

time: 0ms

memory: 3812kb

input:

output:

result:

ok

Test #8:

score: 10

Accepted

time: 1ms

memory: 3784kb

input:

output:

result:

ok

Test #9:

score: 10

Accepted

time: 3ms

memory: 4112kb

input:

output:

result:

ok

Test #10:

score: 10

Accepted

time: 4ms

memory: 3812kb

input:

output:

result:

ok

Test #11:

score: 10

Accepted

time: 5ms

memory: 3824kb

input:

output:

result:

ok

Test #12:

score: 10

Accepted

time: 2ms

memory: 4112kb

input:

output:

result:

ok

Test #13:

score: 10

Accepted

time: 0ms

memory: 3824kb

input:

output:

result:

ok

Test #14:

score: 10

Accepted

time: 0ms

memory: 3808kb

input:

output:

result:

ok

Test #15:

score: 10

Accepted

time: 8ms

memory: 3812kb

input:

output:

result:

ok

Test #16:

score: 10

Accepted

time: 0ms

memory: 3832kb

input:

output:

result:

ok

Test #17:

score: 10

Accepted

time: 8ms

memory: 3832kb

input:

output:

result:

ok

Test #18:

score: 10

Accepted

time: 0ms

memory: 3744kb

input:

output:

result:

ok

Test #19:

score: 10

Accepted

time: 0ms

memory: 3816kb

input:

output:

result:

ok

Test #20:

score: 10

Accepted

time: 0ms

memory: 4084kb

input:

output:

result:

ok

Test #21:

score: 10

Accepted

time: 0ms

memory: 3792kb

input:

output:

result:

ok

Test #22:

score: 10

Accepted

time: 4ms

memory: 3744kb

input:

output:

result:

ok

Test #23:

score: 10

Accepted

time: 0ms

memory: 3812kb

input:

output:

result:

ok

Subtask #2:

score: 15

Accepted

Test #24:

score: 15

Accepted

time: 28ms

memory: 3880kb

input:

output:

result:

ok

Test #25:

score: 15

Accepted

time: 7ms

memory: 3880kb

input:

output:

result:

ok

Test #26:

score: 15

Accepted

time: 9ms

memory: 3808kb

input:

output:

result:

ok

Test #27:

score: 15

Accepted

time: 14ms

memory: 3856kb

input:

output:

result:

ok

Test #28:

score: 15

Accepted

time: 21ms

memory: 3820kb

input:

output:

result:

ok

Test #29:

score: 15

Accepted

time: 11ms

memory: 3760kb

input:

output:

result:

ok

Test #30:

score: 15

Accepted

time: 6ms

memory: 3820kb

input:

output:

result:

ok

Test #31:

score: 15

Accepted

time: 0ms

memory: 3788kb

input:

output:

result:

ok

Test #32:

score: 15

Accepted

time: 23ms

memory: 3816kb

input:

output:

result:

ok

Test #33:

score: 15

Accepted

time: 9ms

memory: 3816kb

input:

output:

result:

ok

Test #34:

score: 15

Accepted

time: 10ms

memory: 4080kb

input:

output:

result:

ok

Test #35:

score: 15

Accepted

time: 15ms

memory: 3820kb

input:

output:

result:

ok

Test #36:

score: 15

Accepted

time: 9ms

memory: 3812kb

input:

output:

result:

ok

Test #37:

score: 15

Accepted

time: 11ms

memory: 3816kb

input:

output:

result:

ok

Test #38:

score: 15

Accepted

time: 8ms

memory: 3896kb

input:

output:

result:

ok

Test #39:

score: 15

Accepted

time: 0ms

memory: 3824kb

input:

output:

result:

ok

Test #40:

score: 15

Accepted

time: 9ms

memory: 3828kb

input:

output:

result:

ok

Test #41:

score: 15

Accepted

time: 0ms

memory: 4108kb

input:

output:

result:

ok

Test #42:

score: 15

Accepted

time: 0ms

memory: 4116kb

input:

output:

result:

ok

Subtask #3:

score: 22.5

Acceptable Answer

Test #43:

score: 75

Accepted

time: 0ms

memory: 4108kb

input:

output:

result:

ok

Test #44:

score: 75

Accepted

time: 0ms

memory: 3812kb

input:

output:

result:

ok

Test #45:

score: 75

Accepted

time: 1ms

memory: 3820kb

input:

output:

result:

ok

Test #46:

score: 75

Accepted

time: 1ms

memory: 3812kb

input:

output:

result:

ok

Test #47:

score: 70.33

Acceptable Answer

time: 1ms

memory: 4044kb

input:

output:

result:

points 0.93773333330 points  0.93773333330

Test #48:

score: 22.5

Acceptable Answer

time: 34ms

memory: 3820kb

input:

output:

result:

points 0.30 points  0.30

Test #49:

score: 75

Accepted

time: 0ms

memory: 4116kb

input:

output:

result:

ok

Test #50:

score: 45

Acceptable Answer

time: 15ms

memory: 3868kb

input:

output:

result:

points 0.60 points  0.60

Test #51:

score: 56.15

Acceptable Answer

time: 20ms

memory: 3792kb

input:

output:

result:

points 0.74866666670 points  0.74866666670

Test #52:

score: 24.35

Acceptable Answer

time: 32ms

memory: 3788kb

input:

output:

result:

points 0.32466666670 points  0.32466666670

Test #53:

score: 72.84

Acceptable Answer

time: 4ms

memory: 3820kb

input:

output:

result:

points 0.97120 points  0.97120

Test #54:

score: 27.82

Acceptable Answer

time: 25ms

memory: 3856kb

input:

output:

result:

points 0.37093333330 points  0.37093333330

Test #55:

score: 56.17

Acceptable Answer

time: 17ms

memory: 3744kb

input:

output:

result:

points 0.74893333330 points  0.74893333330

Test #56:

score: 32.13

Acceptable Answer

time: 30ms

memory: 4108kb

input:

output:

result:

points 0.42840 points  0.42840

Test #57:

score: 32.14

Acceptable Answer

time: 27ms

memory: 3816kb

input:

output:

result:

points 0.42853333330 points  0.42853333330

Test #58:

score: 32.14

Acceptable Answer

time: 20ms

memory: 3808kb

input:

output:

result:

points 0.42853333330 points  0.42853333330

Test #59:

score: 37.5

Acceptable Answer

time: 20ms

memory: 3828kb

input:

output:

result:

points 0.50 points  0.50

Test #60:

score: 32.14

Acceptable Answer

time: 24ms

memory: 3784kb

input:

output:

result:

points 0.42853333330 points  0.42853333330

Test #61:

score: 37.5

Acceptable Answer

time: 27ms

memory: 4076kb

input:

output:

result:

points 0.50 points  0.50

Test #62:

score: 56.24

Acceptable Answer

time: 17ms

memory: 3848kb

input:

output:

result:

points 0.74986666670 points  0.74986666670

Test #63:

score: 64.33

Acceptable Answer

time: 9ms

memory: 3820kb

input:

output:

result:

points 0.85773333330 points  0.85773333330

Test #64:

score: 70.33

Acceptable Answer

time: 6ms

memory: 3824kb

input:

output:

result:

points 0.93773333330 points  0.93773333330

Test #65:

score: 75

Accepted

time: 9ms

memory: 3884kb

input:

output:

result:

points 1.0 points  1.0

Test #66:

score: 74.78

Acceptable Answer

time: 8ms

memory: 3880kb

input:

output:

result:

points 0.99706666670 points  0.99706666670

Test #67:

score: 75

Accepted

time: 0ms

memory: 3896kb

input:

output:

result:

ok

Test #68:

score: 45

Acceptable Answer

time: 28ms

memory: 3764kb

input:

output:

result:

points 0.60 points  0.60

Test #69:

score: 45

Acceptable Answer

time: 22ms

memory: 3832kb

input:

output:

result:

points 0.60 points  0.60

Test #70:

score: 37.4

Acceptable Answer

time: 17ms

memory: 3816kb

input:

output:

result:

points 0.49866666670 points  0.49866666670

Test #71:

score: 37.3

Acceptable Answer

time: 25ms

memory: 3812kb

input:

output:

result:

points 0.49733333330 points  0.49733333330

Test #72:

score: 56

Acceptable Answer

time: 10ms

memory: 3832kb

input:

output:

result:

points 0.74666666670 points  0.74666666670

Test #73:

score: 56.22

Acceptable Answer

time: 20ms

memory: 3884kb

input:

output:

result:

points 0.74960 points  0.74960

Test #74:

score: 64.32

Acceptable Answer

time: 19ms

memory: 3824kb

input:

output:

result:

points 0.85760 points  0.85760

Test #75:

score: 64.33

Acceptable Answer

time: 19ms

memory: 4108kb

input:

output:

result:

points 0.85773333330 points  0.85773333330

Test #76:

score: 44.93

Acceptable Answer

time: 19ms

memory: 3812kb

input:

output:

result:

points 0.59906666670 points  0.59906666670

Test #77:

score: 45

Acceptable Answer

time: 12ms

memory: 3828kb

input:

output:

result:

points 0.60 points  0.60

Test #78:

score: 56.05

Acceptable Answer

time: 15ms

memory: 4116kb

input:

output:

result:

points 0.74733333330 points  0.74733333330

Test #79:

score: 55.86

Acceptable Answer

time: 11ms

memory: 3828kb

input:

output:

result:

points 0.74480 points  0.74480

Test #80:

score: 57

Acceptable Answer

time: 12ms

memory: 3808kb

input:

output:

result:

points 0.760 points  0.760

Test #81:

score: 57

Acceptable Answer

time: 18ms

memory: 4084kb

input:

output:

result:

points 0.760 points  0.760

Test #82:

score: 45

Acceptable Answer

time: 27ms

memory: 3856kb

input:

output:

result:

points 0.60 points  0.60

Test #83:

score: 45

Acceptable Answer

time: 30ms

memory: 4116kb

input:

output:

result:

points 0.60 points  0.60

Test #84:

score: 44.1

Acceptable Answer

time: 0ms

memory: 3824kb

input:

output:

result:

points 0.5880 points  0.5880

Test #85:

score: 31.71

Acceptable Answer

time: 37ms

memory: 3896kb

input:

output:

result:

points 0.42280 points  0.42280

Test #86:

score: 25

Acceptable Answer

time: 28ms

memory: 4120kb

input:

output:

result:

points 0.33333333330 points  0.33333333330

Test #87:

score: 72.84

Acceptable Answer

time: 9ms

memory: 4120kb

input:

output:

result:

points 0.97120 points  0.97120

Test #88:

score: 75

Accepted

time: 10ms

memory: 3884kb

input:

output:

result:

ok

Test #89:

score: 72.84

Acceptable Answer

time: 14ms

memory: 3820kb

input:

output:

result:

points 0.97120 points  0.97120