how to take input from a file in a certain way in C .

Question

The way being suppose the data is 123 134 2312 32131 2131231 211212

It should take them as different numbers and store them in an integer array .

Answer 1

You can use fscanf with %d format specifier to read successive integer values from a text file.

Answer 2

int i = 0, cap = 10;
int *a = malloc(cap * sizeof(int));
int n;
while (scanf("%d", &n))
{
    if (i == cap)
        a = realloc(a, (cap *= 2) * sizeof(int));
    a[i++] = n;
}