How to insert same element on DIFFERENT positions of an array (in C)?-CodePudding

I need some assistance in C language.

Assuming I have an array of 10 elements:

int arr[10] = {1,2,999,4,5,999,7,999,9,10};

I want to add the number 1000 at every position where 999 is found without deleting it of course. Or in that case positions where 1000 has to be added: arr[2], arr[5], arr[7]

So my result buffer would be after compiling (of course increased by the amount of positions where 999 has been added):

temp[100] = {1,2,1000,999,4,5,1000,999,7,1000,999,9,10};

Can you help me with that?

CodePudding user response：

You can do this by using conditionals like given below.

//I assume that the arrays are already declared
int i,j;
for(i = 0, j = 0; i < n; i   , j  ){ //here n is the size of the array
    if(arr[j] == 999){
        temp[i] = 1000;
        i  ; n  ;
        temp[i] = 999;
    }
    else
        temp[i] = arr[j];
}

Try this out. This code snippet may not seem so standard but this gives you your desired output...