(r&1) ) return (l-r); // l is even, put r first if (!(l&1)) return 1; // l is odd, put l first return -1;} // A utility function to print an arrayvoid printArr(int arr[], int n){ int i; for (i = 0; i < n; ++i) pr...
void multiply_by_int(int n,int m) 这么定义肯定越界，要用大整数