错误：二进制 + 的操作数无效(具有 'int (*)()' 和"整数 (*)()")

i正在创建以下代码，该代码正在通过使用负面应对策略的使用来推论学生的压力水平，并与低自我形象相关的陈述一致。以下是我的代码，粗体是我有问题的部分：

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 possiblen");
 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 counselorn");
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 strategiesn")
}
void printweightsstatements()
{
 printf("1:Strongly disagreen");
 printf("2:Disagreen");
 printf("3:Neither agree nor disagreen");
 printf("4:Agreen");
printf("5:Strongly agreen");
}

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 straightn");
 printweightsstatements;
 printf("1:Strongly disagreen");
 printf("2:Disagreen");
 printf("3:Neither agree nor disagreen");
 printf("4:Agreen");
 printf("5:Strongly agreen");
printf ("Statement 2: I do not have much control over events in my lifen");
printweightsstatements;
printf("1:Strongly disagreen");
printf("2:Disagreen");
printf("3:Neither agree nor disagreen");
printf("4:Agreen");
printf("5:Strongly agreen");
scanf("%d", &weight2);
printf ("Statement 3: During this school year, I have been stressed a lotn");
printweightsstatements;
printf("1:Strongly disagreen");
printf("2:Disagreen");
printf("3:Neither agree nor disagreen");
printf("4:Agreen");
printf("5:Strongly agreen");
scanf("%d", &weight3);
printf ("Statement 4: Although I try very hard, there is always some schoolwork too difficult for men");
printf("1:Strongly disagreen");
printf("2:Disagreen");
printf("3:Neither agree nor disagreen");
printf("4:Agreen");
printf("5:Strongly agreen");
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:Nevern");
 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")
}

这是日志。您知道如何解决这些错误？

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