Program örnekleri-çözüm bekleniyor-yeni

#include <iostream>
#include <array>
using namespace std;

int main ()
{
	 char *students[10]={"Mehmet","Hakan","Ayse","Mustafa","Ali","Ahmet","Harun","Ozge","Haluk","Salih"};
	//string students[]={'Mehmet','Hakan','Ayse','Mustafa','Ali','Ahmet','Harun','Ozge','Haluk','Salih'};
	int  grade[5][10]={
	{96,76,54,40,100,45,85,70,69,100},
	{76,96,70,54,100,70,80,90,75,90},
	{70,65,54,40,85,45,85,65,54,85},
	{86,70,54,40,90,70,90,75,65,90},
	{95,80,54,40,95,75,85,70,69,100},
	};
	

	
	double average=0, classAverage, sum=0; 
	int  i, j;
	
	
	
	for (i=0; i<10 ; i++)
	{
	for (j=0; j<5 ; ++j)
	{
	cout<<endl;
	cout<<"Ogrencinin ismi: "<< students[i] << endl ;
	cout<< " Aldigi not: " << grade[j][i]<<" ";
	
	
	 //average=sum /5;
	if (grade[j][i] >=90 || grade[j][i]==100)
		{cout<<"grade=A ";}
	if (grade[j][i]>=80 && grade[j][i] < 90)
		{cout<<"grade=B ";}
	if (grade[j][i]>=70 && grade[j][i] < 80)
		{cout<<"grade=C ";}
	if (grade[j][i]>=60 && grade[j][i] < 70)
		{cout<<"grade=D ";}
	if (grade[j][i] <60)
		{cout<<"grade=F ";}
	average+=grade[j][i];
	 classAverage=average /5 /10;
	if (j==4)
	{
		
		cout<<"average: "<<average<<" ";
	}
	}
}

	cout<<"sum: "<<sum;

	cout<<endl
	<<"Sinif Ortalamasi:"<<classAverage<<" ";
}

 
 #include <iostream> 
 #include <string> 
 #include <array> 
 //#include <cstdlib>  
 #include <exception> 
 #include <memory> 
 using namespace std; 
  
 struct students { 
 		string name; 
 		int grade[5]; 
 		double sum; 
  
 		  
 }stu; 
 int main () { 
 	int i,t,k, l; 
 	double totalAverage=0, average, classAverage; 
 	char option; 
 	struct students student[10]; 
 	// struct students *ptr; 
 	// ptr=student; 
 	student[0].name="Mehmet"; 
 	student[1].name="Mustafa";  
 	student[2].name="Hakan"; 
 	student[3].name="Ayşe"; 
 	student[4].name="Ali"; 
 	student[5].name="Ahmet"; 
 	student[6].name="Harun"; 
 	student[7].name="Özge"; 
 	student[8].name="Haluk"; 
 	student[9].name="Salih"; 
 	student[0].grade[0]=96;	 student[1].grade[0]=76; student[2].grade[0]=54; student[3].grade[0]=85;  student[4].grade[0]=100; 
 	student[0].grade[1]=45;  student[1].grade[1]=85; student[2].grade[1]=70; student[3].grade[1]=90;  student[4].grade[1]=100; 
 	student[0].grade[2]=90;  student[1].grade[2]=96; student[2].grade[2]=70; student[3].grade[2]=90;  student[4].grade[2]=100; 
 	student[0].grade[3]=70;  student[1].grade[3]=80; student[2].grade[3]=90; student[3].grade[3]=95;  student[4].grade[3]=90; 
 	student[0].grade[4]=85;  student[1].grade[4]=65; student[2].grade[4]=65; student[3].grade[4]=100; student[4].grade[4]=85; 
 	 
 	student[5].grade[0]=96;	 student[6].grade[0]=45; student[7].grade[0]=85; student[8].grade[0]=65;  student[9].grade[0]=85; 
 	student[5].grade[1]=76;  student[6].grade[1]=86; student[7].grade[1]=70; student[8].grade[1]=54;  student[9].grade[1]=90; 
 	student[5].grade[2]=54;  student[6].grade[2]=70; student[7].grade[2]=90; student[8].grade[2]=75;  student[9].grade[2]=90; 
 	student[5].grade[3]=40;  student[6].grade[3]=95; student[7].grade[3]=80; student[8].grade[3]=54;  student[9].grade[3]=95; 
 	student[5].grade[4]=100; student[6].grade[4]=75; student[7].grade[4]=85; student[8].grade[4]=70;  student[9].grade[4]=100; 
 liste:cout<<"Listeden işlemi seçiniz: "<<endl; 
 	cout <<"1. İstenilen öğrencinin notlarını ve ortalamasını gör."<<endl; 
 	cout <<"2. Sınıfın ortalmasını ve toplam ortalamayı gör."<<endl; 
 	cout<<"Seçiminiz:  "; 
 	cin>>option; 
 	while ((option != '1') && (option != '2')) 
 	{ 
 	cout<<"Yanlış seçim yaptınız. Tekrar tuşlayınız: "; 
 	cin>>option; 
 	} 
  
 	 switch (option) 
 	{ 
 		case '1': 
 		goto grade_topla; 
 		case '2': 
 		goto sinif_ort; 
 	}   
  
  grade_topla:  
 	cout << "Sınıfın Öğrencileri: "<<endl; 
 	for (i=0; i<10; ++i) 
 	{ 
      cout<< i+1<< ". "<< student[i].name << " "; 
 	} 
 	cout<<endl<<"Öğrencinin not ve ortalamasını görmek için sıra numarasını girin: "; 
 	cin>>t;  
 average1:if ( t<=10) 
 	{ 
 	for (t, l=0; l<5; l++) 
 	{ 
 		student[t-1].sum+=student[t-1].grade[l]; 
 	} 
 	average=student[t-1].sum/5; 
 	cout<<endl<<"Notları: "; 
 	 
 	for (t, i=0; i<5; ++i) 
 	{ 
 	cout<<student[t-1].grade[i]<<" "; 
 		if (student[t-1].grade[i] >=90 || student[t-1].grade[i] ==100) 
 		{cout<<"grade=A ";} 
 		if (student[t-1].grade[i] >=80 && student[t-1].grade[i] < 90) 
 		{cout<<"grade=B ";} 
 		if (student[t-1].grade[i] >=70 && student[t-1].grade[i] < 80) 
 		{cout<<"grade=C ";} 
 		if (student[t-1].grade[i] >=60 && student[t-1].grade[i] < 70) 
 		{cout<<"grade=D ";} 
 		if (student[t-1].grade[i] <60) 
 		{cout<<"grade=F ";} 
 	} 
 	cout<<endl<<student[t-1].name<<" İsimli öğrencinin aldığı ortalama:  "<<average<<"  " ; 
 secim1:cout<<endl<<"Başka işlem yapmak ister misiniz? Evet için 1, Hayır için 2 tuşlayınız. "; 
 	cout<<endl<<"Seçiminiz: "; 
 	cin>>option; 
 	switch (option) 
 	{ 
 		case '1': 
 		goto liste; 
 		case '2': 
 		exit(0); 
 	} 
  
 	return 0; 
  
 } 
 	else  
 	{ 
 		while (t>10) 
 		{ 
 			cout<<"Sıra numarası bulunamadı. Tekrar Deneyiniz: "; 
 			cin>>t; 
 			goto average1; 
 		} 
 		return 0; 
 	} 
  
  
 sinif_ort:cout<<" Toplam Ortalama: "; 
 		for (k=0; k<5; ++k) 
 		{ 
 			student[0].sum+=student[0].grade[k]; 
 			student[1].sum+=student[1].grade[k]; 
 			student[2].sum+=student[2].grade[k]; 
 			student[3].sum+=student[3].grade[k]; 
 			student[4].sum+=student[4].grade[k]; 
 			student[5].sum+=student[5].grade[k]; 
 			student[6].sum+=student[6].grade[k]; 
 			student[7].sum+=student[7].grade[k]; 
 			student[8].sum+=student[8].grade[k]; 
 			student[9].sum+=student[9].grade[k]; 
 			totalAverage=(student[0].sum/5)+(student[1].sum/5)+student[2].sum/5+student[3].sum/5+student[4].sum/5+student[5].sum/5+student[6].sum/5+student[7].sum/5+student[8].sum/5+student[9].sum/5; 
 			                                             
 		}     
     /*                                                         
 		for (int i=0,l=0; i<10, l<10; ++i,++l)                         
 		{                                                   
 		 for (k=0; k<5; ++k)                                
 		{                                                   
 			student[i].sum+=student[l].grade[k];            
 			totalAverage+=(student[i].sum);                  
 			 
 		} 
 		}  */ 
 		 
 	 
 	 cout<<totalAverage<<"   "; 
      classAverage=(totalAverage)/10; 
 	cout << "Sınıf Ortalaması: " << classAverage<<" "; 
  
 		 if (classAverage >=90 || classAverage ==100) 
 		{cout<<"grade=A ";} 
 		if (classAverage  >=80 && classAverage < 90) 
 		{cout<<"grade=B ";} 
 		if ( classAverage  >=70 && classAverage  < 80) 
 		{cout<<"grade=C ";} 
 		if (classAverage  >=60 && classAverage  < 70) 
 		{cout<<"grade=D ";} 
 		if ( classAverage  <60) 
 		{cout<<"grade=F ";} 
 		goto secim1; 
 	}