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#include <iostream>
#include <windows.h>
#include <conio.h>
#include <cstdlib>
#include <fstream>
using namespace std;
int N=0;
struct StudentStruct
{
unsigned int FacultativeNumber;
unsigned int Age;
unsigned Grade;
unsigned short int Sex;
}
Student[55];
void Enter(void)
{
char Answer;
if(N<55)
{
cout<<"\n New student number"<<1+N<<":"<<endl;
cout<<"Facultative Number: ";
cin>>Student[N].FacultativeNumber;
cout<<"Age: ";
cin>>Student[N].Age;
cout<<"Grade: ";
cin>>Student[N].Grade;
cout<<"Sex (1-male, 0-female): ";
cin>>Student[N].Sex;
cout<<endl; N++;
do
{
cout<<"One more Student? ('y'-Yes, 'n'-No): ";
cin>>Answer;
}
while(Answer!='y'&&Answer!='n');
if(Answer=='y') Enter ();
}
cout<<endl<<endl;
}
void malefemale(void)
{
int c, countmale=0, countfemale=0;
unsigned int male[55][2], female[55][2];
for(c=0;c<N;c++)
{
if(Student[c].Sex)
{
male[countmale][0]=Student[c].FacultativeNumber;
male[countmale][1]=Student[c].Age;
countmale++;
}
else
{
female[countfemale][0]=Student[c].FacultativeNumber;
female[countfemale][1]=Student[c].Age;
countfemale++;
}
}
float SumAgemale=0.0f,SumAgefemale=0.0f;
for(c=0;c<countmale;c++) SumAgemale+=(float)male[c][1];
for(c=0;c<countfemale;c++) SumAgefemale+=(float)female[c][1];
cout<<"Male:"<<endl;
cout<<"FacultativeNumber:\tAge:"<<endl;
for(c=0;c<countmale;c++) cout<<male[c][0]<<"\t\t\t"<<male[c][1]<<endl;
cout<<"Average Age: "<<SumAgemale/(float)countmale;
cout<<endl<<endl;
cout<<"female: "<<endl;
cout<<"FacultativeNumber: \tage: "<<endl;
for(c=0; c<countfemale; c++) cout<<female[c][0]<<"\t\t\t"<<female[c][1]<<endl;
cout<<"Average Age: "<<SumAgefemale/(float)countfemale;
cout<<endl<<endl;
}
void malefemale2(void)
{
int c, countmale=0, countfemale=0;
unsigned int male[55][2], female[55][2];
for(c=0;c<N;c++)
{
if(Student[c].Sex)
{
male[countmale][0]=Student[c].FacultativeNumber;
male[countmale][1]=Student[c].Grade;
countmale++;
}
else
{
female[countfemale][0]=Student[c].FacultativeNumber;
female[countfemale][1]=Student[c].Grade;
countfemale++;
}
}
float SumGrademale=0.0f,SumGradefemale=0.0f;
for(c=0;c<countmale;c++) SumGrademale+=(float)male[c][1];
for(c=0;c<countfemale;c++) SumGradefemale+=(float)female[c][1];
cout<<"Male:"<<endl;
cout<<"FacultativeNumber:\tGrade:"<<endl;
for(c=0;c<countmale;c++) cout<<male[c][0]<<"\t\t\t"<<male[c][1]<<endl;
cout<<"Average Grade: "<<SumGrademale/(float)countmale;
cout<<endl<<endl;
cout<<"female: "<<endl;
cout<<"FacultativeNumber: \tGrade: "<<endl;
for(c=0; c<countfemale; c++) cout<<female[c][0]<<"\t\t\t"<<female[c][1]<<endl;
cout<<"Average Grade: "<<SumGradefemale/(float)countfemale;
cout<<endl<<endl;
}
void Search (void)
{
bool Exist;
char Answer;
unsigned int SearchedFacultativeNumber;
int c;
do
{
cout<<"\n\nFacultativeNumber for searching: "; cin>>SearchedFacultativeNumber;
Exist=false;
for(c=0; c<N;c++)
if(Student[c].FacultativeNumber==SearchedFacultativeNumber)
{
Exist=true;
cout<<"\nNumber in row: "<<1+c<<endl;
cout<<"Age: "<<Student[c].Age<<endl;
cout<<"Grade: "<<Student[c].Grade<<endl;
cout<<"Sex: ";
if(Student[c].Sex) cout<<"male"<<endl;
else cout<<"female"<<endl;
}
if(!Exist) cout<<"Student with FacultativeNumber "<<SearchedFacultativeNumber<<"Not Exist."<<endl;
cout<<endl;
do
{
cout<<"One more Student? ('y'-yes, 'n'-no): ";
cin>>Answer;
}
while(Answer!='y'&&Answer!='n');
}
while(Answer!='n');
cout<<endl<<endl;
}
void MostYoungestStudent()
{
unsigned int MinAge;
int cMinAge, c, cc;
c=0;
while(Student[c].Sex&&c<N) c++;
if(c<N)
{
cMinAge=c;
MinAge=Student[c].Age;
for(cc=c+1;cc>N; cc++)
if(!Student[cc].Sex&&Student[cc].Age<MinAge)
{
MinAge=Student[cc].Age;
cMinAge=cc;
}
cout<<endl<<"Youngest student's Facultative Number is "<<Student[cMinAge].FacultativeNumber<<endl<<"And is"<<Student[cMinAge].Age<<" Age."<<endl<<endl;
}
else
cout<<endl<<"There are not such students. "<<endl<<endl;
}
void SortAscending()
{
int x,y;
for(x=0;x<N;x++)
for(y=x+1;y<N;y++)
if(Student[y].Age<Student[x].Age)
swap(Student[x],Student[y]);
for(x=0;x<N;x++)
cout<<endl<<"Age: "<<1+x<<":"<<endl<<"Facultative Number: "<<Student[x].FacultativeNumber<<endl<<"Student #"<<Student[x].Age<<endl<<"Sex: "<<((Student[x].Sex) ?"male.":"female.")<<endl<<endl;
}
void Save ()
{
}
int main()
{
int Choice;
SetConsoleCP(1251);SetConsoleOutputCP(1251);
do
{
do
{
cout<<"\n\n1. Add Students\n"
<<"2. Male and Female - Average age\n"
<<"3. Male and Female - Average grade\n"
<<"4. Searching studentst using Facultative Number\n"
<<"5. The Youngest Female Student is: \n"
<<"6. Sort Students Ascending by Age \n\n"
<<"7. Save\n\n"
<<"0. End\n\n\n";
cout<<"> ";cin>>Choice;
}
while(Choice<0||Choice>7);
switch(Choice)
{
case 1:
Enter();
break;
case 2:
malefemale();
break;
case 3:
malefemale2();
break;
case 4:
Search();
break;
case 5:
MostYoungestStudent();
break;
case 6:
SortAscending();
break;
case 7:
Save();
break;
}
}
while(Choice!=0);
return 0;
}.
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