Question

I am trying to initialize a 2d array with some integer.If I initialize the array to 0 I am getting correct results but If I use some other integer I get some random values.

int main()
{
    int array[4][4];
    memset(array,1,sizeof(int)*16);
    printf("%d",array[1][2]); <---- Not set to 1
}

Answer 1

memset set every byte of your array to 1 not every int element.

Use an initializer list with all values set to 1 or a loop statement to copy a value of 1 to all the elements.