Submission #146197

#	Time	Username	Problem	Language	Result	Execution time	Memory
146197		imeimi2000	"The Lyuboyn" code (IZhO19_lyuboyn)	C++17	100 / 100	404 ms	5496 KiB

lyuboyn

#include <iostream>
#include <algorithm>
#include <vector>

using namespace std;

char _S[20];
int B[1 << 18];
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n, k, t;
    cin >> n >> k >> t >> _S;
    if (k + 1 & 1) {
        printf("-1\n");
        return 0;
    }
    int S = 0;
    for (int i = 0; i < n; ++i) S = S << 1 | _S[i] - '0';
    for (int i = 0; i <= k; ++i)
        B[1 << i] = (1 << k + 1) - (1 << i) - 1;
    for (int i = k + 1; i < n; ++i)
        B[1 << i] = (1 << k - 1) + (1 << i) - 1;
    printf("%d\n", 1 << n);
    for (int i = 0; i < (1 << n); ++i) {
        S ^= B[i & -i];
        for (int j = n; j--; ) printf("%d", (S >> j) & 1);
        printf("\n");
    }
    return 0;
}

Compilation message (stderr)

lyuboyn.cpp: In function 'int main()':
lyuboyn.cpp:13:11: warning: suggest parentheses around '+' in operand of '&' [-Wparentheses]
     if (k + 1 & 1) {
         ~~^~~
lyuboyn.cpp:18:52: warning: suggest parentheses around arithmetic in operand of '|' [-Wparentheses]
     for (int i = 0; i < n; ++i) S = S << 1 | _S[i] - '0';
                                              ~~~~~~^~~~~
lyuboyn.cpp:20:29: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
         B[1 << i] = (1 << k + 1) - (1 << i) - 1;
                           ~~^~~
lyuboyn.cpp:22:29: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
         B[1 << i] = (1 << k - 1) + (1 << i) - 1;
                           ~~^~~

• Subtask 1: 0 / 0
• Subtask 2: 5 / 5
• Subtask 3: 3 / 3
• Subtask 4: 11 / 11
• Subtask 5: 15 / 15
• Subtask 6: 18 / 18
• Subtask 7: 31 / 31
• Subtask 8: 17 / 17