Calculating Averages Max and Min C++ -

// input : student name, 1 test grade perstudent // output: student averages, class averages, top student last student  #include <string> #include <iostream> using namespace std;  float calcavgclassgrade(int s1, int s2, int s3, int s4, int s5)  {     float avg, sum;      // sum grades, , avg     sum = s1 + s2 + s3 + s4 + s5;     avg = sum / 2;     return avg; }  string  getmax(int s1, int s2, int s3, int s4, int s5, string n1, string  n2, string n3, string n4, string n5) {     float max;     string maxname;     // compares each grade find max     max = s1;     maxname = n1;     if (max <  s2)     {         max = s2;         maxname = n2;     }     if (max <  s3)     {         max = s3;         maxname = n3;     }     if (max <  s4)     {         max = s4;         maxname = n4;     }     if (max <  s5)     {         max = s5;         maxname = n5;     }       return maxname;  }  string getmin(int s1, int s2, int s3, int s4, int s5, string n1, string n2, string n3, string n4, string n5)  {      float min;     string minname;     // compares each grade find min     min = s1;     minname = n1;     if (min <  s2)     {         min = s2;         minname = n2;     }     if (min < s3)     {         min = s3;         minname = n3;      }     if (min <   s4);     {          min = s4;         minname = n4;     }     if (min <  s5)     {         min = s5;         minname = n5;     }     return minname;  }    int main() {     string student1, student2, student3, student4, student5;     int student1grade, student2grade, student3grade, student4grade, student5grade;      // enter student names;     cout << "enter student name: ";     cin >> student1;     cout << "enter student grade: ";     cin >> student1grade;      cout << "enter student name: ";     cin >> student2;     cout << "enter student grade: ";     cin >> student2grade;      cout << "enter student name: ";     cin >> student3;     cout << "enter student grade: ";     cin >> student3grade;      cout << "enter student name: ";     cin >> student4;     cout << "enter student grade: ";     cin >> student4grade;       cout <<"enter student name : " ;     cin >> student5;     cout <<"enter student grade : " ;      cin >> student5grade;          // class avg      float classavg = calcavgclassgrade(student1grade, student2grade, student3grade, student4grade, student5grade);      cout << "class average = " << classavg;           // max grade       string classmax = getmax(student1grade, student2grade, student3grade, student4grade, student5grade, student1, student2, student3, student4, student5);       cout << classmax << " has highest grade in class";           // min grade       string classmin = getmin(student1grade, student2grade, student3grade, student4grade, student5grade, student1, student2, student3, student4, student5);      cout << classmin << " has lowest grade in class";   } 

this first c ++ program. having trouble formatting cout statements , think there errors in math because keep getting values 2.56 x e. suggestion appreciated, have learned alot syntax far. dont think syntax correct on cout statements. need use endl?

if (min < s2) , other instances of wrong. should if (min > s2)

avg = sum / 2 wrong. should avg = sum / 5

also have << std::endl; or << "\n"; @ end of last cout statement generate new line.