I am writting these in C/C++, any help on either one is greatly appreciated 1) C

Question

I am writting these in C/C++, any help on either one is greatly appreciated

1) Create a function f_rotate that takes integers n and r as input and returns another integer which is a rotation of r by n positions. For example, for n = 24579 and r = 2, your function should return 79245.

2) Create a function f_cubes_sum that takes an integer n and returns any pair of integers a and b which satisfies a3 + b3 = n, for a 0 and b 0. If such a pair does not exist, your function should return NULL. In this problem you will have to allocate memory dynamically for the pair and return a pointer to it. Remember that the caller will be responsible for deallocating this memory.

Explanation / Answer

int f_rotate(int val, int r){

while(r--){

int d = val%10;

val = val/10;

int x = 10;

while( x < val) x *= 10;

val = d*x + val;

}

return val;

}

//////////////////////////

int** f_cubes_sum(int n){

int **p;

for(int i = 0; i*i*i <= n ; i++)

for(int j = i; j*j*j <= n ; j++) if(i*i*i + j*j*j == n ) { *p = i, *(p+1) = j; return p;}

return NULL;

}

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