Error C2084 function 'main' already has a body

[daniel031792]

So i keep getting this error. The attachment I included is what my teacher wants but together but i keep getting the error when i combine the codes. Thanks in advance. Sorry Im a novice. This my code

#include <stdio.h>
 
int main()
{
    system("cls");
 
    printf("\t\t    VENTURA COUNTY COMMUNITY COLLEGE DISTRICT          ");
    printf("\n\t\t\t\t Ventura College                                 ");  
    printf("\n\n\t\t\t     Programming Fundamentals                    ");
    printf("\n\t\t\t\t      CS V11                                     ");
    printf("\n\n\t\t\t\t        By                                     ");
    printf("\n\t\t\t\t Daniel Camarena                                 ");
 
 
    printf("\n\n\n\n");
}
 
#include <stdio.h>
 
int main()
{
//  int A,B,C,D,E;   // how to declare variables separated by COMMAS
 
    int A;
    int B;
    int C;
    int D;
    int E;
 
    A = 1;
    B = 2;
    C = 3;
    D = 4;
    E = 5;
 
    system("cls");
 
 
//  Samples of INTEGER WORLD
 
 
//  Solution to #1
    printf("\n\t\t\tThe value of #1 equation is %4d ", ((A*A)+(B*B))/((C*C)+(D*D))         );
 
//  Solution to #2
    printf("\n\t\t\tThe value of #2 equation is %4d ", ((A*A)+(B*B)-(C*C))/(2*A*B)         );
 
//  Solution to #3
    printf("\n\t\t\tThe value of #3 equation is %4d ", (A*(B-C)*(C-D)*(D-E))/(A+B+C+D+E)   );
 
//  Solution to #4
    printf("\n\t\t\tThe value of #4 equation is %4d ", ((A*A*A)-(B*B*B))/((C*C*C)+(D*D*D)) );
 
 
    printf("\n\n\n\n");
}

[weaknessforcats]

I see two main() functions in the code you posted. You can only have one main() function in a program.

[daniel031792]

How do you combine the two main functions?

[Nepomuk]

Simply speaking: By moving the contents of one into the other. You must however be careful when doing this; if one somehow influences the results or output of the other, you must be careful to put the commands in the correct order, maybe rename stuff and possibly even modify the way your code works to a certain extent.