error: invalid operands to binary + (have 'int (*)()' and 'int (*)()')

Question

I was creating the following code which is deducing a student's stress level from their usage of negative coping strategies and agreement with low self-image associated statements. Below is my code, and bolded are the parts I had problems with :

void statements (void);
    void printweightsstatements(void);
void coping (void);
void printweightscoping(void);
void advice ();
int cumweightstatement();
int cumweightcoping();

void main()
{
 statements ();
 coping ();
**if (int cumweightstatement + int cumweightcoping>=20)** 

 printf ("You are very stressed and at a high risk for depression. Please 
see a doctor or psychiaqtrist as soon as possible\n");
 else if (cumweightstatement + cumweightcoping>=15 && int cumweightstatement + int cumweightcoping<20)
printf ("You are quite stressed and at a moderate risk for depression. Please see your school guidance counselor\n");
else if (cumweightstatement + cumweightcoping<=14)
printf ("You are mildly stressed and at a low risk for depression, but you could still benefit from using positive coping strategies\n")
}

void printweightsstatements()
{
 printf("1:Strongly disagree\n");
 printf("2:Disagree\n");
 printf("3:Neither agree nor disagree\n");
 printf("4:Agree\n");
printf("5:Strongly agree\n");

}


void statements(void)

{
 int weight1;
 int weight2;
 int weight3;
 int weight4;

 printf ("How much do you agree with the following statements?\n");

 printf ("Statement 1: I have trouble concentrating on my homework for 1 hour straight\n");
 printweightsstatements;
 printf("1:Strongly disagree\n");
 printf("2:Disagree\n");
 printf("3:Neither agree nor disagree\n");
 printf("4:Agree\n");
 printf("5:Strongly agree\n");

printf ("Statement 2: I do not have much control over events in my life\n");
printweightsstatements;
printf("1:Strongly disagree\n");
printf("2:Disagree\n");
printf("3:Neither agree nor disagree\n");
printf("4:Agree\n");
printf("5:Strongly agree\n");
scanf("%d", &weight2);
printf ("Statement 3: During this school year, I have been stressed a lot\n");
printweightsstatements;
printf("1:Strongly disagree\n");
printf("2:Disagree\n");
printf("3:Neither agree nor disagree\n");
printf("4:Agree\n");
printf("5:Strongly agree\n");
scanf("%d", &weight3);
printf ("Statement 4: Although I try very hard, there is always some schoolwork too difficult for me\n");
printf("1:Strongly disagree\n");
printf("2:Disagree\n");
printf("3:Neither agree nor disagree\n");
printf("4:Agree\n");
printf("5:Strongly agree\n");
scanf("%d", &weight4);
printweightsstatements;

int cumweightstatement=weight1+weight2+weight3+weight4;
}


void coping (void);
{
  int weight1;
  int weight2;
  int weight3;
  int weight4;
  int weight5;

printf ("How often do you use each of the following coping strategies?\n");
printf ("Strategy 1: Negative self-talk (for example, I can’t do this,this is too hard for me, I’ll never get good at this)\n");
printweightscoping;
scanf("%d", &weight1);
printf ("Strategy 2: Overusing Internet/social media/phone for non-school-related activities (over 1 hour/day)\n");
printweightscoping;
scanf("%d", &weight2);
printf ("Strategy 3: Extended sleep or naps (above 8-9 hours of regular sleep)\n");
printweightscoping;
scanf("%d", &weight3);
printf ("Strategy 4:Procrastination or avoiding the task (leaving your schoolwork to the last minute, or not doing it at all)\n");
printweightscoping;
scanf("%d", &weight4);
printf ("Strategy 5:Denial (ignoring your problems and keep doing things the same way)\n");
printweightscoping;
scanf("%d", &weight5);
int cumweightcoping=weight1+weight2+weight3+weight4;
}

void printweightscoping(void);
{
 printf("1:Never\n");
 printf("2:Rarely(less than weekly) \n");
 printf("3:Sometimes(once a week)\n");
 printf("4:Often (several times a week)\n");
 printf("5:Always (about daily")
}

This is the log. Do you have any idea how to fix these errors?

main.c: In function 'main':
main.c:23:9: error: expected expression before 'int'

main.c:25:33: error: invalid operands to binary + (have 'int (*)()' and 'int (*)
main.c:25:58: error: expected expression before 'int'
                                                      ^
main.c:27:33: error: invalid operands to binary + (have 'int (*)()' and 'int (*)
 expected identifier or '(' before '{' token

Answer 1

a ';' is missing at the end of the line

    printf ("You are mildly stressed and at a low risk for depression, but you could still benefit from using positive coping strategies\n")

and as said in the comments, you have some strange declaration in some lines

    else if (cumweightstatement + cumweightcoping>=15 && int cumweightstatement + int cumweightcoping<20)

if you want to cast your variables as int, use

    (int)your_variable

But you declare cumweightstatement and cumweightcoping as function, not simple variable...

    int cumweightstatement();
    int cumweightcoping();

The name of a function is its address in memory, that explain why your compiler complain about adding some pointer (invalid operands to binary + (have 'int (*)()' and 'int (*)()')

EDIT: You have many mistakes in your code, confusion between variables you declare as functions: int cumweightstatement(); should be int cumweightstatement; and some functions calls that are not correctly done, like printweightsstatements; which should be printweightsstatements();

Declaring variables outside a function make it globale: you can reach it from any function in the file. Declaring a variable in a function makes it locale: you can NOT reach it out of its scope. i.e.: when you declare, for example in void statements(void):

    int cumweightstatement=weight1+weight2+weight3+weight4;

you declare a locale variable cumweightstatement and you affect to it the sum of each weight. But you will lose it as soon as you get out of the function.

The easiest, starting from the code you have, would be to use globale variables, what you probably try to do with the declaration

    int cumweightstatement();

but, once again, this creates a function, not a globale variable.

This link https://www.codingunit.com/c-tutorial-functions-and-global-local-variables will give you some bases to declare functions and locale/globale variables