Task34

public static int[][] task34(int n) {
        int[][] ans = new int[n][n];
        for (int i = 0; i < n / 2; ++i) {
            for (int j = i; j < n - i; ++j) {
                ans[i][j] = 1;
            }
        }
        for (int i = n-1; i >= n / 2; --i) {
            for (int j = n-i-1; j < i+1; ++j) {
                ans[i][j] = 1;
            }
        }
        return ans;
    }