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  1. #1
    Registered User
    Join Date: Aug:2012
    Location: Òúðãîâèùå
    Posts: 297

    Èäåÿ çà ïðîãðàìêà íà C++

    Çäðàâåéòå,èìàì åäèí ïðîáëåì ñ íàïèñâàíåòî íà åäíà ïðîãðàìà íà C++.Çàäà÷êàòà å îò óðîêà çà îïåðàòîðà enum. Çàäà÷êàòà å :
    Äà ñå íàïèøå ïðîãðàìà,êîÿòî âúâåæäà ñòîéíîñòèòå íà åñòåñòâåíèòå ÷èñëà n,m,p è q è íàìèðà âñè÷êè ðåäèöè îò îïåðàöèè (op1,op2,op3) ñðåä +,0,*,/, òàêà ÷å êàòî ñå çàìåñòÿò â èçðàçà (((n op1 m)) op2 p) op3 q), ïîëó÷åíàòà ñòîéíîñò äà å ðàâíà íà à (à å äàäåíî öÿëî ÷èñëî).
    Êàòî öÿëî ìèñëÿ,÷å èäåÿòà å äà ñå íàïðàâÿò 3 öèêúëà (öèêúë 1,êîéòî å â öèêúë 2,à öèêúë 2 å â öèêúë 3) è op1,op2,op3 äà ïðèåìàò òåçè çíàöè +,-,*,/ îáà÷å êàê äà ãî íàïðàâÿ òîâà ? Ïðîáâàõ è íå ñòàíà äà èçïîëçâàì enum, à è enum äî êîëêîòî çíàì ãè ïðèåìà ñàìî âèçóàëíî (ò.å. íå ðàçáèðà ôóíêöèèòå èì).Ùå ñå ðàäâàì äà ìè íàïèøåòå ñàìî íóæíèÿ êîä ò.å. êàê äà îñúùåñòâÿ èäåÿòà ñ àâòîìàòè÷íîòî èçðåæäàíå íà çíàöèòå èíàöå öèêëè è ò.í. ïðåäïîëàãàì ùå ãè íàïðàâÿ ñàì.
    Áëàãîäàðÿ,ïðåäâàðèòåëíî.

  2. #2
    Game programmer
    Join Date: Feb:2007
    Location: Ñîôèÿ
    Posts: 1,948
    ïðèìåðíî òàêà:

    Code:
    switch(operation)
    {
    case divide:
        result = v1/v2;
        break;
    case multiply: 
        result = v1*v2;
        break;
    case add:
        result = v1+v2;
        break;
    case subtract:
        result = v1-v2;
        break;
    }
    è öèêëèòå òè ìèíàâàò ïðåç enum-a ñ îïåðàöèèòå.
    3700X | 3070Ti | 64GB RAM | 2TB SSD | Seasonic 750W | FD Define 7 Mini

  3. #3
    Registered User
    Join Date: Aug:2012
    Location: Òúðãîâèùå
    Posts: 297
    Àêî íå ñå ëúæà ñõâàíàõ èäåÿòà âè,íî òðÿáâà äà ãî ïðîáâàì ïîñëå.Áëàãîäàðÿ âè,ìíîãî çà èäåÿòà è çà áúðçèÿ îòãîâîð.

  4. #4
    Registered User
    Join Date: Aug:2012
    Location: Òúðãîâèùå
    Posts: 297
    Çäðàâåéòå,îòíîâî.Èñêàì äà âè ïîïèòàì îòíîñíî òàçè ïðîãðàìà èçìèñëèõ òîâà:
    #include <iostream>
    using namespace std;
    int main()
    {
    cout << " Vuvedete 4 chisla"<<endl;
    int m,n,p,q,broi=0;
    cin >>m>>n>>p>>q;
    cout <<" Vuvedete specialno chislo"<<endl ;
    double a;
    cin >>a;
    enum op{op1,op2,op3,op4};
    op d,e,f;
    double s,g,h;
    for (d=op1;d<=op4;d=(op)(d+1))
    {
    s=0;
    g=0;
    switch(d)
    {
    case op1 : s=m+n;break;
    case op2 : s=m-n;break;
    case op3 : s=m*m;break;
    case op4 : s=m/n;break;
    }
    g=s;

    for (e=op1;e<=op4;e=(op)(e+1))
    {
    s=g;
    switch(e)
    {
    case op1 : s=s+p;break;
    case op2 : s=s-p;break;
    case op3 : s=s*p;break;
    case op4 : s=s/p;break;
    }
    h=s;
    for (f=op1;f<=op4;f=(op)(f+1))
    {
    s=h;
    switch(f)
    {
    case op1 : s=s+q;break;
    case op2 : s=s-q;break;
    case op3 : s=s*q;break;
    case op4 : s=s/q;break;
    }

    if (s==a)
    {
    broi++;
    if (broi==1) cout <<"Realnite resheniq na vashiqt problem sa: "<<endl;
    switch(d)
    {
    case 0 : cout << "(+,";break;
    case 1 : cout << "(-,";break;
    case 2 : cout << "(*,";break;
    case 3 : cout << "(/,";break;
    }

    switch(e)
    {
    case 0 : cout << "+,";break;
    case 1 : cout << "-,";break;
    case 2 : cout << "*,";break;
    case 3 : cout << "/,";break;
    }

    switch(f)
    {
    case 0 : cout << "+)"<<endl;break;
    case 1 : cout << "-)"<<endl;break;
    case 2 : cout << "*)"<<endl;break;
    case 3 : cout << "/)"<<endl;break;
    }
    }
    s=h;
    }
    }
    }
    if (broi==0) cout << "There`re no real soliutions of your problem"<<endl;

    system("pause" );
    return 0;
    }
    Îáà÷å òîâà ùå ìè èçâåäå ñàìî ÷èñëåíàòà ñòîéíîñò íà îïåðàöèèòå è íå çíàì êàê äà âèçóàëèçèðàì òðîéêàòà (op1,op2,op3) ÷ðåç çíàöè.Âñúùíîñò åäèíñòâåíîòî,êîåòî ìè õðóìíà å ÷ðåç ASCII êîäîâåòå è òàêà äà ãè âèçóàëèçèðàì.Èìà ëè íÿêàêúâ äðóã íà÷èí?Àç ñåãà ùå ïðîáâàì òîâà ñ ASCII êîäîâåòå.Åâåíòóàëíî ïúê,àêî â ïðîãðàìàòà èìà íåùî,êîåòî íå å ÷èòàâî ïðèåìàì êðèòèêè (çàíèìàâàë ñúì ñå ìàëêî ñ ïðîãðàìèðàíå).È ñúùî òàêà êàêâà å èäåÿòà â ñëó÷àÿ äà ïðèëàãàì òîâà íåùî çà òèï èçáîðåí?Îñâåí,÷å óæ ñå ïðèåìàëî çà äîáúð ñòèë çà ïðîãðàìèðàíå?
    Ï.Ï. Ðåäàêòèðàõ ïðåäè íàïèñàíàòà ïðîãðàìà,çàùîòî íå áåøå ÷èòàâà.Òàçè ìàé ðàáîòè äîáðå,íî ïúê ìè ñå ñòðóâà,÷å ñúì íàïèñàë íåðàöèîíàëíî ðåøåíèå... Ñ òîëêîâà ìíîãî ïðîìåíëèâè ...
    Ùå ñå ðàäâàì,àêî íÿêîé âêàðà åäíî ðàìî è êàæå íåäîñòàòúöèòå è åâåíòóàëíî ïî-äîáúð íà÷èí.Áëàãîäàðÿ ïðåäâàðèòåëíî.
    Last edited by DuMBo0o; 12th August 2013 at 13:36.

  5. #5
    Registered User hateras's Avatar
    Join Date: Jan:2011
    Location: Kronos III
    Posts: 1,028
    Äîáðå ñè ñå ñïðàâèë, íî íÿêîëêî çàáåëåæêè /å íÿìà êàê, íàëè.../
    - êîãàòî ïîêàçâàø ïðîãðàìåí êîä, èçïîëçâàé [ code ] è [ /code ] (áåç èíòåðâàëèòå â ñêîáèòå) çà äà ñè çàïàçèø ôîðìàòèðàíåòî:
    Code:
    #include <iostream>
    using namespace std;
    int main()
    {
    	cout << " Vuvedete 4 chisla"<<endl;
    	int m,n,p,q,broi=0;
    	cin >>m>>n>>p>>q;
    	cout <<" Vuvedete specialno chislo"<<endl ;
    	double a;
    	cin >>a;
    	enum op{op1,op2,op3,op4};
    	op d,e,f;
    	double s,g,h;
    	for (d=op1;d<=op4;d=(op)(d+1))
    	{
    		s=0;
    		g=0;
    		switch(d)
    		{
    			case op1 : s=m+n;break;
    			case op2 : s=m-n;break;
    			case op3 : s=m*m;break;
    			case op4 : s=m/n;break;
    		}
    		g=s;
    
    		for (e=op1;e<=op4;e=(op)(e+1))
    		{
    			s=g;
    			switch(e)
    			{
    				case op1 : s=s+p;break;
    				case op2 : s=s-p;break;
    				case op3 : s=s*p;break;
    				case op4 : s=s/p;break;
    			}
    			h=s;
    			for (f=op1;f<=op4;f=(op)(f+1))
    			{
    				s=h;
    				switch(f)
    				{
    					case op1 : s=s+q;break;
    					case op2 : s=s-q;break;
    					case op3 : s=s*q;break;
    					case op4 : s=s/q;break;
    				}
    
    				if (s==a)
    				{
    					broi++;
    					if (broi==1) cout <<"Realnite resheniq na vashiqt problem sa: "<<endl;
    					switch(d)
    					{
    						case 0 : cout << "(+,";break;
    						case 1 : cout << "(-,";break;
    						case 2 : cout << "(*,";break;
    						case 3 : cout << "(/,";break;
    					}
    
    					switch(e)
    					{
    						case 0 : cout << "+,";break;
    						case 1 : cout << "-,";break;
    						case 2 : cout << "*,";break;
    						case 3 : cout << "/,";break;
    					}
    
    					switch(f)
    					{
    						case 0 : cout << "+)"<<endl;break;
    						case 1 : cout << "-)"<<endl;break;
    						case 2 : cout << "*)"<<endl;break;
    						case 3 : cout << "/)"<<endl;break;
    					}
    				}
    				s=h;
    			}
    		}
    	}
    	if (broi==0) cout << "There`re no real soliutions of your problem"<<endl;
    
    	system("pause" );
    	return 0;
    }
    - Òèÿ case ïîâòîðåíèÿ ñè ïëà÷àò çà ôóíêöèè, íî ïðåäïîëàãàì òîâà îùå íå ñòå ãî ó÷èëè. Òîãàâà êîäà ùå ñòàíå 1/3 îò ñåãàøíèÿ.

    - Áîÿäèñàíîòî â ÷åðâåíî å èçëèøíî /ñëîæè ãî â êîìåíòàð è òåñòâàé/.
    ASRock B550M Pro 4; Ryzen R5 3600; 2x16 GiB G.SKILL Aegis 3200; 1TB Samsung QVO 960 + 3TB Seagate IronWolf; Zalman Z1

  6. #6
    Registered User
    Join Date: Aug:2012
    Location: Òúðãîâèùå
    Posts: 297
    Îòíîñíî òîâà çà case ïîíåæå å îò òîçè óðîê èçïîëçâàõ òîçè òàã.Èíà÷å ïî÷íàõ ñàì äà ó÷à C++ è êàòî öÿëî íÿìà êîé äà ìè ïîìàãà.Ìîæå ëè äà íàïèøåø ñàìèòå òàãîâå çà òåçè ôóíêöèè,çà êîèòî ãîâîðèø òè,à åâåíòóàëíî,àêî íå ñúì ãè ó÷èë íàòàòúê,êîãàòî ñòèãíà äî òÿõ ñå íàäÿâàì,÷å íÿìà äà çàáðàâÿ çà òàçè çàäà÷à è ùå ÿ ðåøà ÷ðåç òÿõ.Îòíîñíî ïîñëåäíîòî òèðå - íå ìèñëÿ,÷å áîÿäèñàíîòî â ÷åðâåíî å èçëèøíî.Âñúùíîñò ìèñëåõ,íî êîãàòî ïðîáâàõ ñ ÷èñëàòà 1 1 1 1, à çà ñïåöèàëíî ÷èñëî âúâåäîõ 2 ìè èçëåçå,÷å +,-,- å ðåøåíèå, à 1+1-1-1 íå å 2 .Òîãàâà äîáàâèõ òîâà â ÷åðâåíî.Èíà÷å â íà÷àëîòî è àç ñå áÿõ çàáëóäèë,÷å å èçëèøíî.
    Ìíîãî áëàãîäàðÿ,çà áúðçèÿ îòãîâîð.Åâåíòóàëíî,àêî íåùî ïúê àç áúðêàì ùå ñå ðàäâàì äà ìå ïîïðàâèø,çàùîòî ñúì íîâàê â ïðîãðàìèðàíåòî.
    È êàêòî êàçàõ ó÷à ñàì è òî÷íî ïîðàäè òàçè ïðè÷èíà ìå å ñòðàõ äà íå áè äà ñå íàó÷à äà ïèøà ïðîãðàìèòå ïî íÿêàêúâ ãðåøåí íà÷èí(ïî-ñêîðî ñ íÿêàêâè ëîøè ïðîãðàìèñòêè ïðàêòèêè) èëè ïî íÿêàêúâ ñëîæåí íà÷èí,èñêàì,àêî íå âè å ïðîáëåì äà ïðîâåðèòå äàëè òàè ïðîãðàìà å äîáðå íàïèñàíà.
     ïðîãðàìàòà âúâåæäàòå òàêîâà m è n êàòî âúâåæäàòå ðàâíè m è n ,òúé êàòî òðÿáâà äà å çà êâàäðàòíà ìàòðèöà,íî ïîíåæå ìå ìúðçè âñåêè ïúê äà ñìåíÿì ïðîìåíëèâè è ò.í. ãè îñòàâèõ òàêà .Èäåÿòà å äà âè èçâåäå ÷èñëàòà îò íÿêàêâà ìàòðèöà â ñëåäíèÿ ðåä ( ïðèìåð çà ìàòðèöà a[3x3]) - a02 , a01 , a12 , a00 , a11 , a22 , a10 , a21 , a20 , êúäåòî akt çíà÷è k+1 ÿò åëåìåíò îò t+1 èÿ ðåä .
    Íàäÿâàì ñå,÷å òîâà íàêðàÿ ãî îáÿñíèõ äîáðå.
    Code:
    #include <iostream>
    using namespace std;
    int main()
    {
    
    	cout <<" Vuvedete n: ";
    	int n;
    	cin>>n;
    	cout <<" Vuvedete m: ";
    	int m;
    	cin >>m;
    	int a[20][20];
    	for(int i=0;i<=n-1;i++)
    		for(int k=0;k<=m-1;k++)
    		{
    			cout << " Vuvedete <" << i+1<<","<< k+1 <<">" ;
    			cin>>a[i][k];
    		}
    
    		//Izvejdane na chislata nad diagonala i na diagonala vkliuchitelno
    	for(int i=n-1;i>=0;i--)
    	{
    		int r=i;
    		for(int k=0;k<=n-1-i;k++)
    		{
    			cout<<a[k][r]<<" \t" ;
    			r++;
    		}
    	}
    
    	//Izvejdane na chislata pod diagonala
    	for(int i=1;i<=n-1;i++)
    	{
    		int r=i;
    		for(int k=0;k<=n-1-i;k++)
    		{
    			cout << a[i][k]<<"\t" ;
    			r++;
    		}
    	}
    
    
    
    
    	system("pause");
    	return 0;
    }
    Ï.Ï.
    Åòî îùå åäèí âàðèàíò:

    Code:
    #include <iostream>
    using namespace std;
    int main()
    {
    
    	cout <<" Vuvedete n: ";
    	int n;
    	cin>>n;
    	cout <<" Vuvedete m: ";
    	int m;
    	cin >>m;
    	int a[20][20];
    	
    	//Vuvejdane na chislata
    	for(int i=0;i<=n-1;i++)
    		for(int k=0;k<=m-1;k++)
    		{
    			cout << " Vuvedete <" << i+1<<","<< k+1 <<">" ;
    			cin>>a[i][k];
    		}
    		//Vuvejdane na chislata pod diagonala i na diagonala
    		for (int i=n-1;i>=0;i--)
    			for(int k=0;k<=n-1-i;k++)
    				cout<<a[i+k][k]<<" \t" ;
    				
    		//Vuvejdane na chislata nad diagonala
    		for(int k=1;k<=n-1;k++)
    			for(int i=0;i<=n-k-1;i++)
    				cout<<a[i][k+i]<<"\t";
    
    
    
    	system("pause");
    	return 0;
    }
    Last edited by DuMBo0o; 15th August 2013 at 19:32.

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