No matter which grade, the final letter grade is "F"
please tell me where I've got it wrong
Code:#include<iostream> 02 using namespace std; 03 04 struct record 05 { 06 double quiz1; 07 double quiz2; 08 double midyear, midyear_one; 09 double final, final_one; 10 double quiz_average; 11 char final_grade; 12 double total_grade; 13 }; 14 void instructions(); 15 void input(record& the_grades); 16 void output(record& the_grades); 17 18 int main() 19 { 20 record grades; 21 instructions(); 22 input(grades); 23 output(grades); 24 cout << endl << endl; 25 cout << "<program end>"; 26 cout << endl << endl; 27 system("pause"); 28 return 0; 29 } 30 31 void instructions() 32 { 33 cout << "Welcome to the program student record"; 34 cout << endl << "this program takes in 2quizes, a final and midyear"; 35 cout << endl << "and then calculates the average by what they are worth by"; 36 cout << endl << "the quizes together are worth 25% and midyear counts for 25%"; 37 cout << endl << "and the final counts for 50%"; 38 cout << endl; 39 } 40 void input(record& the_grades) 41 { 42 cout << "Enter quiz1 grade out of 10 points:\n"; 43 cin >> the_grades.quiz1; 44 cout << endl; 45 cout << "Enter quiz2 grade out of 10 points:\n"; 46 cin >> the_grades.quiz2; 47 cout << "Enter midyear Exam grade out of 100 points:\n"; 48 cin >> the_grades.midyear; 49 cout << endl; 50 cout << "Enter Final Exam grade out of 100 points:\n"; 51 cin >> the_grades.final; 52 cout << endl; 53 } 54 void output(record& the_grades) 55 { 56 the_grades.quiz_average = (((the_grades.quiz1/10) + (the_grades.quiz2/10))/2) * .25; 57 the_grades.final_one = (the_grades.final/100) * .5; 58 the_grades.midyear_one = (the_grades.midyear/100) *.25; 59 the_grades.total_grade = the_grades.quiz_average + the_grades.final_one + the_grades.midyear_one; 60 61 cout << endl << endl; 62 cout <<"Quiz1: "<< the_grades.quiz1 <<"/10"; 63 cout << endl; 64 cout <<"Quiz2: "<< the_grades.quiz2 <<"/10"; 65 cout << endl; 66 cout <<"Midyear exam: " << the_grades.midyear<<"/100"; 67 cout << endl; 68 cout <<"Final exam: " << the_grades.final<<"/100"; 69 cout << endl; 70 cout <<"Final grade: "<< the_grades.total_grade*100; 71 cout << endl; 72 cout <<"Letter grade: "; 73 if(the_grades.total_grade < 60) 74 { 75 cout << "F"; 76 } 77 if((the_grades.total_grade > 60)&&(the_grades.total_grade < 70)) 78 { 79 cout << "D"; 80 } 81 if((the_grades.total_grade > 70)&&(the_grades.total_grade < 80)) 82 { 83 cout << "C"; 84 } 85 if((the_grades.total_grade > 80)&&(the_grades.total_grade < 90)) 86 { 87 cout << "B"; 88 } 89 if(the_grades.total_grade > 90) 90 { 91 cout << "A"; 92 } 93 cout << endl; 94 95 96 }