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how to print elements of a 1D array into a N x N box


how to print elements of a 1D array into a N x N box

By : Ajavier Jean
Date : November 29 2020, 09:01 AM
Any of those help You have to create n*n array ex:- if the user enters 4 then the array should be 4*4 = 16 elements
code :
int N = InputNumber(input);
char A = 'O';
char [] board = new char[N*N];
int m = (int) Math.sqrt(N); //i don't know why you need this

System.out.println("Printing " + N + " x " + N + " board...");
for(int i = 0; i < board.length; i++)
{
    board[i] = A;
    if((i%N) == 0){
        System.out.println();
    }
     System.out.print(board[i]);
}


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Print out elements from an array with a comma between elements except the last word

Print out elements from an array with a comma between elements except the last word


By : Paddy Viswanathan
Date : March 29 2020, 07:55 AM
Algorithm to remove unique elements from array and print elements in original order

Algorithm to remove unique elements from array and print elements in original order


By : Евгений Богуш
Date : March 29 2020, 07:55 AM
I hope this helps you . There is one question which is bugging me, and somehow, I cannot figure out what to do with it. Suppose an array {9,1,2,4,1,2,2} is given. The unique elements in the array are 9 and 4. The output array should be {1,2,1,2,2} . My idea to preserve the order and find duplicates is to use a LinkedHashMap which will have the entries and the count of occurrence of the entries. , I would do it like this:
How do I print the two elements of an array and the subsequent sum of these elements? (Goldbachs Primes Question)

How do I print the two elements of an array and the subsequent sum of these elements? (Goldbachs Primes Question)


By : user2370060
Date : March 29 2020, 07:55 AM
should help you out First things first, there are a lot of optimizations you can do to make the code logic better. the way you find primes can be improved, you only need to check numbers upto square root n to verify if n is a prime. Also, the actual verification of Goldbachs conjecture can be improved as well.
However, just focusing on the current code, You should stick to using lists if you want to append values, and to stop the code you need to use a sort of hack to stop the nested looping using the for-else syntax. Also, you can use f-strings to format strings nicely from python 3.6 onwards.
code :
primes = []
pairs = []

for num in range (2, 1000): #modified. you forgot 2 and 3!
    for j in range (2, num):
        if (num % j) == 0:
            break
    else:        
        primes.append(num)

result = []
for x in range(2,1000):
    if x % 2 == 0:
        for prime1 in primes:
            for prime2  in primes:
                if prime1 + prime2 == x:
                    print(f"{x} = {prime1} + {prime2}")
                    result.append((prime1, prime2))
                    break
            else: #this is a for-else syntax. enter this block if the for loop did not encounter a break
                continue #go to next iteration of the mid-level loop. This prevents the line afterwards from being executed in cases where the inner loop did not "break"
            break #break the mid level loop if you reach this line.
        else:
            print("You have done it! Bingo!!")
print only distinct or duplicate elements of array and ignore the rest of elements - vb

print only distinct or duplicate elements of array and ignore the rest of elements - vb


By : September Inc.
Date : March 29 2020, 07:55 AM
Print an array elements with 10 elements on each line

Print an array elements with 10 elements on each line


By : Daye Guo
Date : March 29 2020, 07:55 AM
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