a Show which of the following are valid and which are invalid identifiers: Why?

Question

a Show which of the following are valid and which are invalid identifiers: Why?

                run_1

                2run

                double

                Char

                double-trouble

                two*four

b. What's wrong with the following function call:

(3 dots means I’m not showing all of the program steps)

#include <stdio.h>

double find_scale(double x, int n);

.

.

.

int main(void)

{

double num_1, num_3;

int num_2;

.

.

.

num_3 = Find_scale(num_1, num_2);

.

.

.

return(0);

}

double find_scale(double x, int n)

{

.

.

.

return(0);

}

Explanation / Answer

Please find the answers below :

a)

run_1, and Char

b)

In main function you are calling Find_scale function with F as capital, as the function names are case-sensitive it will gives an error the function Find_scale not defined. In this code the declared function is find_scale with small f.

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