CPP error "expected unqualified-id before ‘{’ token"

[phoenix14]

My task was to write a program that asks the user for 5 percent grades (storing them in the marks[] array), and then calculates the student's final mark using the weighting scheme stored in weights[]. We were supposed to use functions for this problem. I wrote the code but it keeps showing an error which I have tried to resolve but couldn't. Here is my code:

#include <iostream>
using namespace std;
  void getFloatArrayFromUser (float marks[5], float weights[5]);
{
 int i;
   for(int i = 0; i <= 4; i++){
      cout << "Enter score[" << i << "]: ";
      cin >> marks[i];
      cout << endl;
      }
      
      int j;
      for (int j = 0; j <=4; j++)
   {
        cout << "Enter weight[" << j << "]: ";
        cin >> weights[j];
        cout << endl;
    }
    }
    
 void displayFloatArray (float marks[5], float weights[5]);
 {
 int k;
 float total;
 
 for (k=0; k<4; k++)
 {
 total = float marks[5] * float weights [5];
 }
 
int main() {
   float marks[5];
   float weights [5];
   
    
   cout << "Enter the five marks: " << endl;
   cin >> marks[5];
   
 
   cout << "Enter the weight of the evaluation: " << endl;
   cin >> weight[5];
   
 getFloatArrayFromUser (marks, weights);
 displayFloatArray (marks, weights);
 
 cout << endl;
 cout << "the total averages are: " << displayFloatArray << endl;
   return 0;
}

The error that shows up is for line 4: prog.cpp:4: error: expected unqualified-id before ‘{’ token

I was wondering how I could resolve this issue - any advice would be appreciated. Thank you.

[mzimmers]

When defining a routine, as you are beginning on line 3, you don't put a semicolon after the parameter list. Doing so makes you think you're declaring, not defining, the function.

[phoenix14]

Thank you for replying! I got rid of the semicolon and I got another error:
prog.cpp: In function ‘void getFloatArrayFromUser(float*, float*)’:

how do I solve that? Am I missing something in the main function?

[mzimmers]

I'm not sure, since you left out the actual error message you got. But, in your function definitions, you can't specify array sizes. Getting rid of the "5"s would be a good thing to do, whether or not it solves your problem.

[ne555]

for (k=0; k<4; k++)
{
  total = float marks[5] * float weights [5];
}

¿what do you think you are doing there?
¿what do you want to do?