CodeGraderBench/CodeGraderBench huggingface dataset:
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program
{

	float a,b ; cin >> a >> b; 

	float ex = ( pow(a,5) - 3*pow(a,4)*b + 4*pow(a,2)*pow(b,3) - 5*a*pow(b,4) + pow(b,5) )/(a-b) ; 

	cout << ex << endl; 















}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>

main_program{
double a,b,x,y,z,w,v;
cin>>a>>b;
x = pow(a,5);
y = 3*pow(a,4)*b;
z = 4*pow(a,2)*pow(b,3);
w = 5*pow(b,4)*a;
v = pow(b,5);
cout<<(x-y+z-w+v)/(a-b);
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>

main_program{
	float a, b;
	cin >> a >> b;
	float ans = (((a*a*a*a*a)-3*(a*a*a*a*b)+4*(a*a*b*b*b)-5*(a*b*b*b*b)+(b*b*b*b*b))/(a - b));
	cout << ans;
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
float a,b,p;
cin>>a>>b;

if(-10<=a && b<=10 && a!=b){

p=(pow(a,5)-3*b*pow(a,4)+4*pow(a,2)*pow(b,3)-5*a*pow(b,4)+pow(b,5))/(a-b);

cout<<p;
}

}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include <simplecpp>
main_program{
	int a,b,c,d;
	cin>>num
		int a = -10
		int b = 10
		
		float = 251.5
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: B
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a,b;
	cin>>a>>b;
	
	if(a>=-10 && b<=10 && a!=b){

		float aPfv=a*a*a*a*a;
		float bPfv=b*b*b*b*b;
		float aPfu=a*a*a*a;
		float bPfu=b*b*b*b;
		float bPth=b*b*b;
		float aPtw=a*a;

		float D=(a-b);
		float N=(aPfv- 3*aPfu*b+ 4*aPtw*bPth- 5*a*bPfu+ bPfv);

		float ans= N/D ;

		cout<<ans;
	}
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program
{
	float a,b;
	cin>>a>>b;//accepting two numbers a and b

	float num=((a*a*a*a*a)-(3*a*a*a*a*b)+(4*a*a*b*b*b)-(5*a*b*b*b*b)+(b*b*b*b*b));//computing the numerator, can also use pow(x,y) function
	float den=a-b;//computing the denominator

	float res=num/den;//finding the final result

	cout<<res;//printing out the result
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
float a,b;
cin>>a>>b;
double c=((pow(a,5))-(3*pow(a,4)*b)+(4*pow(a,2)*pow(b,3))-(5*a*pow(b,4))+(pow(b,5)));
float d=a-b;
double f=c/d;
cout<<f;



}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
int main(){
long double  w,e,a,b,c,x,y,m,n,o,t,z;
cin>>a>>b;
x=pow(a,5);
y=pow(a,4);
z=pow(a,2);
m=pow(b,3);
n=pow(b,4);
o=pow(b,5);

t=x-(3*y*b)+(4*z*m)-(5*a*n)+o;
w=a-b;
e=t/w;
cout<<e;
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program
{
	float a,b;
	cin>>a>>b;
	float sum ;
	sum = pow(a,5)-3*pow(a,4)*b+4*a*a*pow(b,3)-5*a*b*b*b*b+pow(b,5);
	float dif = a-b;
	float res = sum/dif;
	cout<<res;
    

}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a,b;
	cin >> a >> b;
	if ( a >= -10 && a <= 10 && b >= -10 && b <= 10 && a!=b){
		cout << (a*a*a*a*a -3*a*a*a*a*b +4*a*a*b*b*b - 5*a*b*b*b*b + b*b*b*b*b )/(a-b);
	}
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include <simplecpp>

main_program{
	float a,b;
	cin >> a;cin >> b;
	cout << (a*a*a*a*a - 3*a*a*a*a*b + 4*a*a*b*b*b - 5*a*b*b*b*b + b*b*b*b*b)/(a-b);
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a,b;
	cin>>a>>b;
	float x;
	x=(pow(a,5)-3*pow(a,4)*b+4*a*a*b*b*b-5*a*b*b*b*b+pow(b,5))/(a-b);
	cout<<x;
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
	main_program{
		float a,b;
		cin>>a>>b;
		float c;
  c= (pow(a,4)-2*pow(a,3)*b-2*pow(a,2)*pow(b,2)+2*a*pow(b,3)-3*pow(b,4)-2*pow(b,5)/(a-b));			  
 
 cout<<c<<endl;
		  }

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include <simplecpp>
main_program{
	float a,b;
	cin>>a>>b;
	cout<<( a*a*a*a*a-3*a*a*a*a*b + 4*a*a*b*b*b-5*a*b*b*b*b + b*b*b*b*b)/(a-b);
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
float a,b;
cin>>a>>b;
cout<<(a*a*a*a*a-3*a*a*a*a*b+4*a*a*b*b*b-5*a*b*b*b*b+b*b*b*b*b)/(a-b);



}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a, b;
	cin >> a >> b;
        float c;
	c=(a*a*a*a*a-3*a*a*a*a*b+4*a*a*b*b*b-5*a*b*b*b*b+b*b*b*b*b)/(a-b);
	cout << c << endl;
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	int a,b;
	cin >> a >> b;
	float p,q;
	p=pow(a,5)-(3*pow(a,4)*b)+(4*pow(a,2)*pow(b,4))-(5*a*pow(b,4))+pow(b,5);
	q=(a-b);
	if(q!=0  && a!=b)
	cout<< p/q << endl;
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a,b,num;
	cin<<a<<b;
	num (a*a*a*a*a-3*a*a*a*a*b+4*a*a*b*b*b-5*a*b*b*b*b*b)/(a-b);
	cout<<num/(a-b);
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a,b;
	cin>>a>>b;
	cout<< ((pow(a,5))-(3*pow(a,4)*b)+(4*pow(a,2)*pow(b,3))-(5*a*pow(b,4))+(pow(b,5)))/(a-b);
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include <simplecpp>

main_program {
	float a, b;
	cin >> a >> b;

	float a5 = a * a * a * a * a;
	float a4 = a * a * a * a;
	float a2 = a * a;

	float b5 = b * b * b * b * b;
	float b4 = b * b * b * b;
	float b3 = b * b * b;

	cout << (a5 - (3 * a4 * b) + (4 * a2 * b3) - (5 * a * b4) + b5) / (a - b);
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a,b;
	cin>>a;
	cin>>b;
	cout<<(pow(a,5)-3*pow(a,4)*b+4*pow(a,2)*pow(b,3)-5*a*pow(b,4)+pow(b,5))/(a-b);
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float  a,b;
	cin>>a>>b;
	if( a!=b &&-10<=a && b<=10){
	       cout<<((a*a*a*a*a) -(3*a*a*a*a) + (4*a*a*b*b*b) - (5*a*b*b*b*b)+ (b*b*b*b*b))/(a-b)
		       	       
;}
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<iostream>
using namespace std;
int main()
	{
		float  a,b;
		cin>>a>>b;
		if(a>=-10 && b>=-10 && a<=10 && b<=10 && (a-b)!=0)
		{cout<<(a*a*a*a*a-3*a*a*a*a*b+4*a*a*b*b*b-5*a*b*b*b*b+b*b*b*b*b)/(a-b);
		}
	
	
	}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
float a,b,n;
cin>>a>>b;
n=((a*a*a*a*a)-(3*a*a*a*a*b)+(4*a*a*b*b*b)-(5*a*b*b*b*b)+(b*b*b*b*b))/(a-b);
cout<<n;
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a,b;
	cin>>a>>b;
	float exp1;
	float exp2;
	if((-10<=a && a<=10) && (-10<=b && b<=10) && (a!=b)){
		exp1=(pow(a,5) - 3*pow(a,4)*b + 4*pow(a,2)*pow(b,3) - 5*a*pow(b,4) + pow(b,5));
		exp2=(a-b);
		cout<<exp1/exp2;
	}
	else cout<<" " ;
}

Grading criterion: Proper Typecasting
Rating A: Float Variable Used
Rating B: Wrong datatype usage
Rating C: 0
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include <simplecpp>
main_program{
	float a , b, c , d ;
	cin >> a>>b;
	c= (a*a*a*a*a)-(3*a*a*a*a*b)+(4*a*a*b*b*b)-(5*a*b*b*b*b)+(b*b*b*b*b) ;
	d = a-b ;
	cout << c/d ;


}

Grading criterion: Correctness of Answer
Rating A: Final answer completely correct
Rating B: Individual Terms Calculated correctly but error in final answer, or some other mistake
Rating C: Code completely wrong
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
float a,b;
cin>>a>>b;
float exp = (a*a*a*a*a -3*a*a*a*a*b + 4*a*a*b*b*b - 5*a*b*b*b*b + b*b*b*b*b)/(a-b);
cout<<exp;

}

Grading criterion: Correctness of Answer
Rating A: Final answer completely correct
Rating B: Individual Terms Calculated correctly but error in final answer, or some other mistake
Rating C: Code completely wrong
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a,b,x,y;
	cin>>a>>b;
        x=a*a*a*a*a-3*a*a*a*a*b+4*a*a*b*b*b-5*a*b*b*b*b+b*b*b*b*b;
	y=a-b;
	cout<<x/y;
}

Grading criterion: Correctness of Answer
Rating A: Final answer completely correct
Rating B: Individual Terms Calculated correctly but error in final answer, or some other mistake
Rating C: Code completely wrong
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{float a,b;
	double c;
	cin >> a >> b;
	c=((pow(a,5))-(3*(pow(a,4))*(b))+(4*(pow(a,2))*(pow(b,3)))-(5*(a)*(pow(b,4)))+(pow(b,5)))/(a-b);
		cout << c;}

Grading criterion: Correctness of Answer
Rating A: Final answer completely correct
Rating B: Individual Terms Calculated correctly but error in final answer, or some other mistake
Rating C: Code completely wrong
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a, b;
	cin >> a >> b;
	float c=(a*a*a*a*a - 3*a*a*a*a*b + 4*a*a*b*b*b - 5*a*b*b*b*b + b*b*b*b*b)*(1.0)/(a-b);
	if ((a>= -10) && (a<=10) && (b>= -10) && (b<=10)){
		cout << c ;
	}
}

Grading criterion: Correctness of Answer
Rating A: Final answer completely correct
Rating B: Individual Terms Calculated correctly but error in final answer, or some other mistake
Rating C: Code completely wrong
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a,b;
	cin>>a>>b;
	float num1=(a*a*a*a*a)-(3*a*a*a*a*b)+(4*a*a*b*b*b)-(5*a*b*b*b*b)+(b*b*b*b*b);
	float num2=(a-b);
	float value=num1/num2;
	cout<<value;
}

Grading criterion: Correctness of Answer
Rating A: Final answer completely correct
Rating B: Individual Terms Calculated correctly but error in final answer, or some other mistake
Rating C: Code completely wrong
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float x,a,b;
	cin>>a>>b;
	if (a!=b){
x=a*a*a*a*a;
x=x-a*a*a*a*b*3;
x= x+ 4*a*a*b*b*b;
x= x-5*a*b*b*b*b;
x= x+b*b*b*b*b;
x=x/(a-b);
	}

cout<<x;
}

// x+4*ai*a*

Grading criterion: Correctness of Answer
Rating A: Final answer completely correct
Rating B: Individual Terms Calculated correctly but error in final answer, or some other mistake
Rating C: Code completely wrong
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
	float a,b;
	cin >> a >> b;
	cout << (a*a*a*a*a - 3*a*a*a*a*b + 4*a*a*b*b*b -5*a*b*b*b*b +b*b*b*b*b)/(a-b);
}

Grading criterion: Correctness of Answer
Rating A: Final answer completely correct
Rating B: Individual Terms Calculated correctly but error in final answer, or some other mistake
Rating C: Code completely wrong
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{
float a,b;
cin>>a>>b;
float y;
y=(pow(a,5)-3*pow(a,4)*b+4*pow(a,2)*pow(b,3)-5*a*pow(b,4)+pow(b,5))/(a-b);
cout<<y<<endl;
}

Grading criterion: Correctness of Answer
Rating A: Final answer completely correct
Rating B: Individual Terms Calculated correctly but error in final answer, or some other mistake
Rating C: Code completely wrong
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to accept two floating point numbers from the user, a and b, and evaluate the expression and print the result:  (a5 - 3a4b + 4a2b3 - 5ab4 + b5) / (a -b). Print the computed value of the expression

Constraints (Assume)-10 <= a, b <=10a is not equal to b(a-b) is never 0

Student submission:
#include<simplecpp>
main_program{

float a,b;
cin>>a>>b;
cout<<((a*a*a*a*a)-(3*a*a*a*a*b)+(4*a*a*b*b*b)-(5*a*b*b*b*b)+(b*b*b*b*b))/(a-b);
}

Grading criterion: Correctness of Answer
Rating A: Final answer completely correct
Rating B: Individual Terms Calculated correctly but error in final answer, or some other mistake
Rating C: Code completely wrong
Rating D: 0
Assigned grade: A