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编号 题目 状态 分数 总时间 内存 代码 / 答案文件 提交者 提交时间
#5737 #1060. 海明码 Wrong Answer 25 1705 ms 47828 K C++ 17 / 1.3 K s230004040 2024-08-17 14:55:29
显示原始代码 
#include <iostream>
#include <vector>
#include <cmath>

using namespace std;

int main() {
    int n;
    cin >> n;

    int m = log2(n) + 1;
    int totalBits = n + m + 1;

    string input;
    cin >> input;

    vector<int> receivedBits(totalBits);
    for (int i = 0; i < totalBits; i++) {
        receivedBits[i] = input[i] - '0';
    }

    // Calculate C
    int C = 0;
    for (int i = 0; i < n; i++) {
        C ^= receivedBits[i];
    }
    for (int i = n; i < n + m; i++) {
        C ^= receivedBits[i];
    }
    C ^= receivedBits[totalBits - 1];

    if (C == 0) {
        // No error, output original bits
        for (int i = 0; i < n; i++) {
            cout << receivedBits[i];
        }
        cout << endl;
        return 0;
    }

    // Calculate f
    int f = 0;
    for (int i = 0; i < m; i++) {
        int p = 1 << i;
        int parity = 0;
        for (int j = 0; j < totalBits - 1; j++) {
            if ((j + 1) & p) {
                parity ^= receivedBits[j];
            }
        }
        if (parity != receivedBits[n + i]) {
            f |= p;
        }
    }

    if (f > 0) {
        receivedBits[f - 1] ^= 1;
    }

    for (int i = 0; i < n; i++) {
        cout << receivedBits[i];
    }
    cout << endl;

    return 0;
}
子任务 #1
Wrong Answer
得分：25
测试点 #1
Accepted
得分：100
用时：3 ms
内存：300 KiB

输入文件（hamming1.in） 

3
101000

答案文件（hamming1.out） 

101

用户输出 

101

系统信息 

Exited with return code 0
测试点 #2
Wrong Answer
得分：0
用时：2 ms
内存：372 KiB

输入文件（hamming2.in） 

3
110011

答案文件（hamming2.out） 

010

用户输出 

110

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #3
Wrong Answer
得分：0
用时：3 ms
内存：284 KiB

输入文件（hamming3.in） 

3
011111

答案文件（hamming3.out） 

001

用户输出 

010

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #4
Accepted
得分：100
用时：3 ms
内存：408 KiB

输入文件（hamming4.in） 

3
110001

答案文件（hamming4.out） 

111

用户输出 

111

系统信息 

Exited with return code 0
测试点 #5
Wrong Answer
得分：0
用时：3 ms
内存：276 KiB

输入文件（hamming5.in） 

7
00101000111

答案文件（hamming5.out） 

0010100

用户输出 

0000100

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #6
Wrong Answer
得分：0
用时：4 ms
内存：400 KiB

输入文件（hamming6.in） 

7
10111010110

答案文件（hamming6.out） 

1111101

用户输出 

0011101

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #7
Accepted
得分：100
用时：3 ms
内存：256 KiB

输入文件（hamming7.in） 

7
11111100001

答案文件（hamming7.out） 

1111111

用户输出 

1111111

系统信息 

Exited with return code 0
测试点 #8
Wrong Answer
得分：0
用时：3 ms
内存：376 KiB

输入文件（hamming8.in） 

7
01100010100

答案文件（hamming8.out） 

0111001

用户输出 

0110001

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #9
Wrong Answer
得分：0
用时：3 ms
内存：384 KiB

输入文件（hamming9.in） 

1011
11010100110000101111001100101011110101011000000000011110111010001110010100000100101100011001001
<927 bytes omitted>

答案文件（hamming9.out） 

1101010011000010111100110010101111010101100000000001111011101000111001010000010010110001100100111101
<911 bytes omitted>

用户输出 

11010100110000101111001100101011110101011000000000011110111010001110010100000100101100011001001111010001001111110010010000110000
<884 bytes omitted>

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #10
Wrong Answer
得分：0
用时：3 ms
内存：300 KiB

输入文件（hamming10.in） 

823
100110001001000111000001101010111100001101111000001101101010110000111101100001100100011000100001
<738 bytes omitted>

答案文件（hamming10.out） 

1001100010010001110000011010101111000011011110000011011010101100001111011000011001000110001000010011
<723 bytes omitted>

用户输出 

10011000100100011100000110101011110000110111100000110110101011000011110110000110010001100010000100111101110110011000100000111100
<696 bytes omitted>

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #11
Wrong Answer
得分：0
用时：3 ms
内存：236 KiB

输入文件（hamming11.in） 

958
101100100011110000010111000111010011100001001001011100100011011010100011000101110101101100001010
<873 bytes omitted>

答案文件（hamming11.out） 

1011001000111100000101110001110100111000010010010111001000110110101000110001011101011011000010101011
<858 bytes omitted>

用户输出 

10110010001111000001011100011101001110000100100101110010001101101010001100010111010110110000101010110010100100110000000101101011
<831 bytes omitted>

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #12
Accepted
得分：100
用时：87 ms
内存：5000 KiB

输入文件（hamming12.in） 

918908
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
<918836 bytes omitted>

答案文件（hamming12.out） 

0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
<918808 bytes omitted>

用户输出 

00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
<918781 bytes omitted>

系统信息 

Exited with return code 0
测试点 #13
Accepted
得分：100
用时：97 ms
内存：5596 KiB

输入文件（hamming13.in） 

1031714
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
<1031643 bytes omitted>

答案文件（hamming13.out） 

0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
<1031614 bytes omitted>

用户输出 

00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
<1031587 bytes omitted>

系统信息 

Exited with return code 0
测试点 #14
Wrong Answer
得分：0
用时：82 ms
内存：4748 KiB

输入文件（hamming14.in） 

867870
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
<867798 bytes omitted>

答案文件（hamming14.out） 

0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
<867770 bytes omitted>

用户输出 

00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
<867743 bytes omitted>

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #15
Wrong Answer
得分：0
用时：87 ms
内存：5664 KiB

输入文件（hamming15.in） 

1048575
01000000000000101001010011000110010010010000010110101010011101100100001001100011111001011000
<1048504 bytes omitted>

答案文件（hamming15.out） 

0100000000000010100101001100011001001001000001011010101001110110010000100110001111100101100000001100
<1048475 bytes omitted>

用户输出 

01000000000000101001010011000110010010010000010110101010011101100100001001100011111001011000000011000010010100001000101111100110
<1048448 bytes omitted>

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #16
Wrong Answer
得分：0
用时：86 ms
内存：5724 KiB

输入文件（hamming16.in） 

1048575
11001111010100010110010101101011100111010011011101110001110110001111110111100110101010010111
<1048504 bytes omitted>

答案文件（hamming16.out） 

1100111101010001011001010110101110011101001101110111000111011000111111011110011010101001011111010100
<1048475 bytes omitted>

用户输出 

11001111010100010110010101101011100111010011011101110001110110001111110111100110101010010111110101001100010111111110001111100011
<1048448 bytes omitted>

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #17
Wrong Answer
得分：0
用时：87 ms
内存：5716 KiB

输入文件（hamming17.in） 

1048575
10011011000011001111000110111101001000101011011000110010011101000101000001100100001101000100
<1048504 bytes omitted>

答案文件（hamming17.out） 

1001101100001100111100011011110100100010101101100011001001110100010100000110010000110100010011011001
<1048475 bytes omitted>

用户输出 

10011011000011001111000110111101001000101011011000110010011101000101000001100100001101000100110110011001101101011000110100101101
<1048448 bytes omitted>

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #18
Wrong Answer
得分：0
用时：89 ms
内存：5596 KiB

输入文件（hamming18.in） 

1039660
01011010111000011001110110101010001010100111111110000100001100000101100011010100010001011001
<1039589 bytes omitted>

答案文件（hamming18.out） 

0101101011100001100111011010101000101010011111111000010000110000010110001101010001000101100101111001
<1039560 bytes omitted>

用户输出 

01011010111000011001110110101010001010100111111110000100001100000101100011010100010001011001011110010010001111100110100001100101
<1039533 bytes omitted>

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #19
Wrong Answer
得分：0
用时：71 ms
内存：4164 KiB

输入文件（hamming19.in） 

712842
001100101011011110011101011010010000100000110101100110110111010000011010111010100101010001110
<712770 bytes omitted>

答案文件（hamming19.out） 

0011001010110111100111010110100100001000001101011001101101110100000110101110101001010100011101000101
<712742 bytes omitted>

用户输出 

00110010101101111001110101101001000010000011010110011011011101000001101011101010010101000111010001011011001100011111101111001000
<712715 bytes omitted>

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
测试点 #20
Wrong Answer
得分：0
用时：986 ms
内存：47828 KiB

输入文件（hamming20.in） 

9631168
11110110000110010011010101001000100100101011010010110010010010101010110010111010101000000001
<9631101 bytes omitted>

答案文件（hamming20.out） 

1111011000011001001101010100100010010010101101001011001001001010101011001011101010100000000101101110
<9631068 bytes omitted>

用户输出 

11110110000110010011010101001000100100101011010010110010010010101010110010111010101000000001011011101001111001110010010101001110
<9631041 bytes omitted>

Special Judge 信息 

Files user_out and answer differ

系统信息 

Exited with return code 0
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