C Programming

import java.util.Arrays;

class Solution {

public int median(int[] A) {

int[] b = new int[A.length];

System.arraycopy(A, 0, b, 0, b.length);

Arrays.sort(b);

if (A.length % 2 == 0) {

return b[b.length / 2];

} else {

return (int) ((b[(b.length / 2) - 1] + b[b.length / 2]) / 2.0);

}

}

}

This looks suspiciously like homework to me, so I'll give you a few pointers:

The formula for the circumference of a circle is 2{pi}r, and the area is {pi}r2.

As you'll be using floating point and mathematical functions, you'll need to link with the math library (eg cc -lm -o circles circles.c)

I don't think there's a built in pi (having done very little programming in c with trignometric functions I can't be sure), so I use:

double pi = acos(-1.0);

as cos({pi}) = -1.

Your main loop will entail printing a suitable message, getting the input, checking an exit condition, converting the input to a double and then passing that to a function to calculate and print the circumference and areas. The function itself could do extra checking, eg for zero or negative radius and return an error code.

Don't forget to include the necessary header files.

You can use the ternary operator, in an expression such as:

result = a > b ? a : b;

This is equivalent to:

if (a > b)

result = a;

else

result = b;

/* Obvious method: */

#include <stdio.h>

int main(int argc, char *argv[]){

int n, tally = 0;

for(n = 1; n <= 10; n++){

tally += n;

}

printf("the total is %i.\n", tally);

return 0;

}

/* Better method: */

#include <stdio.h>

int main(int argc, char *argv[]){

int numyears = 10;

printf("the total is %i.\n", numyears * (numyears + 1) >> 1);

return 0;

}

The cross product is used to find surface normals of triangles (the building blocks of objects in 3D games). Those surface normals can then be used in dot product tests with the camera to test if the normal is facing the camera or not. If the dot product angle is positive then the normal is facing the same direction as the camera, so the triangle does not need to be drawn (because it cannot be seen). If the angle is negative, then the two vectors are pointing at each other and the triangle may need to be rendered. These methods not only apply to camera viewing, but also to lighting and physics calculations as well.

#include

double complex complex_value;

if (cimag (complex_value)==0.0)) puts ("Real");

11000101 = 197

/*

I'm using four spaces instead of tab because I'm writing this on an iPhone.

*/

#include

#include

int main() {

int num1, num2, num3, num4, sum;

printf("Please enter first number: ");

scanf("%d", num1);

printf("Please enter second number: ");

scanf("%d", num2);

printf("Please enter third number: ");

scanf("%d", num3);

printf("Please enter fourth number: ");

scanf("%d", num4);

sum = pow(num1, 2) + pow(num2, 2) + pow(num3, 2) + pow(num4, 2);

printf("The answer is %d", sum);

return 0;

}

void PrintDist (double d)

{

printf ("the distance is %g", d);

}

10

0.599853515625

Hint, read your text book. It is not that hard to do.

k = f(n) = 7n

It is because array name implies its address and if you want to access first element of it pointer address logic is as below:

Arrays first element address = array base address + 0

Arrays second element address = array base address + 1

You don't have to reduce the steps.

I'll help you with some pseudo-code (NOT ACTUAL CODE, DO NOT TRY TO COMPILE):

int absvalue(int x)

if x is below 0

return x * -1

else

return x

Also, I suggest you do your homework yourself.

if(x 9)

{

}

You cannot create a variable named "while", since that is a reserved word.

2*M+3

hexadecimal can express 16 bit binary in 4 place form, not 16.

4c

You can number the lines in a file using a simple Python program. Here's an example:

with open('input.txt', 'r') as infile, open('output.txt', 'w') as outfile:
    for line_number, line in enumerate(infile, start=1):
        outfile.write(f"{line_number}: {line}")

This code reads from input.txt, numbers each line, and writes the numbered lines to output.txt. The enumerate function is used to keep track of the line numbers, starting from 1.