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  1. #include <iostream>
  2. #include <string>
  3. #include <sstream>
  4. using namespace std;
  5.  
  6. struct Student
  7. {
  8. 	string ID;
  9. 	string name;
  10. 	double grade;
  11. };
  12.  
  13. int main() {
  14. 	//ifstream inFile;
  15. 	istream &inFile = cin;
  16.  
  17. 	Student students[100];
  18. 	int counter = 0;
  19.  
  20. 	string line, netID, studentName;
  21. 	double grade1, grade2, grade3;
  22.  
  23. 	//inFile.open("Asg3Grades.txt"); //opens the file
  24.  
  25. 	while (getline(inFile, line)) {
  26.  
  27.     	istringstream iss(line);
  28.  
  29.     	if (iss >> netID >> studentName >> grade1 >> grade2 >> grade3) {
  30.  
  31.         	double average = (grade1 + grade2 + grade3) / 3;
  32.  
  33.         	students[counter].ID = netID;
  34.         	students[counter].name = studentName;
  35.         	students[counter].grade = average;
  36.  
  37.         	if (++counter == 100) break;
  38.     	}
  39. 	}
  40.  
  41. 	//inFile.close(); //closes the file
  42.  
  43. 	Student *dynamicStudents = new Student[counter];
  44.  
  45. 	for (int i = 0; i < counter; i++) {
  46.     	dynamicStudents[i] = students[i];
  47. 	}
  48.  
  49. 	for (int i = 0; i < counter; i++) {
  50.     	cout << dynamicStudents[i].ID << ": " << dynamicStudents[i].name << " " << dynamicStudents[i].grade << endl;
  51. 	}
  52.  
  53. 	delete[] dynamicStudents;
  54. 	return 0;
  55. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
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1 joe 10 20 30
2 jack 50 75 80
3 john 100 100 100
stdout
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1: joe 20
2: jack 68.3333
3: john 100
https://ideone.com/7N6wRm
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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