/* i wrote this code for my studies and its not working i am gerring an Error called undefinde refrensec to find lowest */ #include #include //to format output using namespace std; //function prototype void getMARKS(int &lapmarks); void avgGRADEDISP(int, int, int, int); int findLowest(int, int, int, int); int main(){ //declare variable to store user input //for 5 test scores int lapmark1, lapmark2,lapmark3, lapmark4; //call function getMARKS () 4 times getMARKS(lapmark1); getMARKS(lapmark2); getMARKS(lapmark3); getMARKS(lapmark4); //call function calcAverage() to display average avgGRADEDISP(lapmark1, lapmark2, lapmark3, lapmark4); //return 0 to mark successful termination of program return 0; } void getMARKS(int &lapmarks){ //prompt user to enter lapmark and read //from keyboard cout << "Please enter lapmark1: \n"; cin >> lapmarks; //validate input using while loop while(lapmarks < 0 || lapmarks > 100){ //print error message cout << "Please enter score within range!\n"; cin >> lapmarks; } } void avgGRADEDISP(int lapmark1, int lapmark2, int lapmark3,int lapmark4){ //print output message directly and call findLowest() directly //divide by 4.0 to prevent integer division cout << "Average lapmarks is "; cout << ((lapmark1+lapmark2+lapmark3+lapmark4)-findLowest(lapmark1,lapmark2,lapmark3,lapmark4))/4<< endl; } int findLowest(double lapmark1, double lapmark2,double lapmark3, double lapmark4){ float average; //use if/else statements to find lowest //score and return it if(average=0 || average <=49) cout<<" your rade is F and GPA is 0"<

need help