array

[vgoel38]

does arr[160]={0}; means each element of the array "arr" has been initialised to 0??

[Aceix]

no, only the first element=0

[vgoel38]

so how to initialise whole array to zero?

[o3hC5Di1]

You need to iterate the entire array:

for (int i=0; i<160; i++)  //for loop with counter i
{
    arr[i] = 0;  //every iteration set arr[index number i] to zero
}

All the best,
NwN

[whitenite1]

@vgoel38

When you first create the array, as in int arr[160] = {0};, then yes, that will initialize that array to 0's. Using any number, will cause arr[0], to be that number, but the rest of the array will be filled with 0's. You can test it out by adding a for loop at the start of your program, and cout the array. Do it without and then, with, the initializing to see the difference.