Web-Programozó | Peter Csonka

Tanár úr lebetegedett, úgyhogy az óra elmaradt. Illetve bejött, adott egy vektoros feladatot, aztán elengedte a csapatot.

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https://docs.google.com/document/d/1B-kSmTuQu89YU8XOb72IlyRp3PL1NpzvBGdLt4UxfcE/edit

```
#include <iostream>
```
```
#include <vector>
```
```
#include <cstdlib>
```
```
 
```
```
using namespace std;
```
```
 
```

void beolvasas(vector< vector<int> > &jegyek);

int beolvas_egesz(const string uzenet, const string hibauzenet);

int beolvas_jegy(const int i, const int j);

bool fel11a(const vector< vector<int> > jegyek);

bool csupaotos(const int i, const vector< vector<int> > jegyek);

```
 
```
```
int main(){
```

	vector< vector<int> > jegyek; // a két záró kacsacsõr közé mindenképp kell a szóköz

```
	bool van;
```
```
 
```
```
	beolvasas(jegyek);
```
```
	van = fel11a(jegyek);
```
```
	if (van){
```
```
    	cout << "Van" << endl;
```
```
	} else {
```
```
    	cout << "Nincs" << endl;
```
```
	}
```
```
 
```
```
	return 0;
```
```
}
```

bool fel11a(const vector< vector<int> > jegyek){

```
	int i=0;
```
```
	int n=jegyek.size();
```

	while(i<=(n-1) && !csupaotos(i, jegyek)){

```
    	i++;
```
```
	}
```
```
	return i<=n-1;
```
```
}
```

bool csupaotos(const int i, const vector< vector<int> > jegyek){

```
	int j=0;
```
```
	int m=jegyek[i].size();
```

	while((j<=(m-1)) && (jegyek[i][j]==5)){

```
    	j++;
```
```
	}
```
```
	return j>(m-1);
```
```
}
```
```
 
```

void beolvasas(vector< vector<int> > &jegyek){

```
	int n, m;
```
```
 
```

	n = beolvas_egesz("Hany diak: ", "Nem negativ kell!");

	m = beolvas_egesz("Hany targy: ", "Nem negativ kell!");

```
 
```
```
	jegyek.resize(n);
```
```
	for(int i=0; i<n; i++){
```
```
    	jegyek[i].resize(m);
```
```
    	for(int j=0; j<m; j++){
```

        	jegyek[i][j] = beolvas_jegy(i,j);

```
    	}
```
```
	}
```
```
}
```

int beolvas_egesz(const string uzenet, const string hibauzenet){

```
	int n;
```
```
	bool hiba;
```
```
 
```
```
	do{
```
```
    	cout << uzenet;
```
```
    	string str;
```
```
    	cin >> str;
```

    	n = atoi(str.c_str()); // atof float-hoz

```
    	hiba = n==0 && str!="0" || n<0;
```
```
    	if(hiba){
```
```
        	cout << hibauzenet << endl;
```
```
    	}
```
```
	} while(hiba);
```
```
 
```
```
	return n;
```
```
}
```

int beolvas_jegy(const int i, const int j){

```
	int n;
```
```
	bool hiba;
```
```
 
```
```
	do{
```

    	cout << i+1 << ". diak " << j+1 << ". jegye: ";

```
    	string str;
```
```
    	cin >> str;
```

    	n = atoi(str.c_str()); // atof float-hoz

    	hiba = n==0 && str!="0" || n<1 || n>5;

```
    	if(hiba){
```

        	cout << "1 es 5 kozott kell lennie!" << endl;

```
    	}
```
```
	} while(hiba);
```
```
 
```
```
	return n;
```
```
}
```

Continue reading →

https://docs.google.com/document/d/1K3prpp0qocb92dNuJ6oFQBAgRSyhjTTG3CaPC1ppr3k/edit

```
void strcpy(char * D, const char * s);
```
```
 
```
```
int main(){
```
```
	char T[10];
```
```
	strcpy(T, "valami");
```
```
	cout << T;
```
```
	return 0;
```
```
}
```
```
 
```
```
void strcpy(char * D, const char * s){
```
```
	for(int i=0;s[i]!='';++i){
```
```
   	D[i]=s[i];
```
```
	}
```
```
}
```

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Áttértünk a C-re.
A jegyzet: https://docs.google.com/document/d/1vAZ-p2yapQcnIQUr_0WKtGQxz0lb7pI6yB6-Z2qkT4c/edit

```
#include &lt;stdio.h&gt;
```
```
#include &lt;stdlib.h&gt;
```
```
#include &lt;string.h&gt;
```
```
int main(int AGC, char * ARGV[]){
```
```
char s1[20]; char s[200]; int egy;
```
```
strcpy(s," ");
```
```
do{
```
```
printf("Kerem a szovegeket: ");
```
```
scanf("%s", &amp;s1);
```
```
egy=strcmp(s1, "vege");
```
```
if(egy!=0){
```
```
strcat(s,s1);
```
```
}
```
```
} while (egy!=0);
```

printf("Az osszemasolt szoveg: %sn", s);

```
return 0;
```
```
}
```

#include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;string.h&gt;
int main(int AGC, char * ARGV[]){
char s1[20]; char s[200]; int egy; char ch[2]; int db=0;
strcpy(s," ");
printf("Kerem a vizsgalando szoveget: ");
gets(ch);
do{
printf("Kerem a szovegeket: ");
scanf("%s", &amp;s1);
egy=strcmp(s1, "vege");
if(egy!=0){
strcat(s,s1);
}
if(s1[0]==ch[0]){
db=db+1;
}
} while (egy!=0);
//    printf("Az osszemasolt szoveg: %sn", s);
printf("A keresett elemek szama: %dn", db);
return 0;
}

Continue reading →

https://docs.google.com/document/d/1H8-kF2jE0MuSrao__M93YroymuTdUKxdNlAeak5MHOk/edit

```
#include <iostream>
```
```
#include <fstream>
```
```
#include <vector>
```
```
 
```
```
using namespace std;
```
```
 
```
```
void beolvasas(vector<double> &x);
```
```
void beolvasas_file(vector<double> &x);
```

void fel1(const vector<double> hom, double &atlag);

void fel3(const vector<double> hom, int &leghidegebbnap);

void fel7(const vector<double> hom, bool &van, int &ind);

void ellkiiras(const vector<double> &hom);

```
 
```
```
int main()
```
```
{
```
```
    //double hom[MAXN];
```
```
    vector<double> hom;
```
```
 
```
```
    //beolvasas(hom);
```
```
    beolvasas_file(hom);
```
```
    ellkiiras(hom);
```
```
 
```
```
    double atlag;
```
```
    fel1(hom, atlag);
```

    cout << "Atlaghom= " << atlag << endl;

```
 
```
```
    int leghidegebbnap;
```
```
    fel3(hom, leghidegebbnap);
```

    cout << "Leghidegebbnap= " << leghidegebbnap << endl;

```
 
```
```
    bool van;
```
```
    int ind;
```
```
    fel7(hom, van, ind);
```
```
    if (van)
```
```
    {
```

        cout << "= a szomszedjaval: " << ind << endl;

```
    }
```
```
    else
```
```
    {
```

        cout << "Nincs = a szomszedjaval" << endl;

```
    }
```
```
 
```
```
    return 0;
```
```
}
```
```
 
```
```
void beolvasas(vector<double> &x)
```
```
{
```
```
    int n;
```
```
    cout << "n=";
```
```
    cin >> n;
```
```
    x.resize(n);
```
```
    for (int i=0; i<n; ++i)
```
```
    {
```
```
        cout << i << ". hom: ";
```
```
        cin >> x[i];
```
```
    }
```
```
}
```
```
 
```
```
void beolvasas_file(vector<double> &x)
```
```
{
```
```
    double sv;
```
```
    //ifstream f("be.txt");
```
```
    ifstream f;
```
```
    string fajlnev;
```
```
    bool hiba;
```
```
 
```
```
    do
```
```
    {
```
```
        cout << "Fajlnev: ";
```
```
        cin >> fajlnev;
```
```
        f.open(fajlnev.c_str());
```
```
        hiba=f.fail();
```
```
        if (hiba)
```
```
        {
```

            cout << "Nem jo fajlnev" << endl;

```
        }
```
```
    }
```
```
    while(hiba);
```
```
 
```
```
    /*while (!f.eof())
```
```
    {
```
```
        f >> sv;
```
```
        if (f.good())
```
```
        {
```
```
            x.push_back(sv);
```
```
        }
```
```
    }*/
```
```
 
```
```
    f >> sv;
```
```
    while (!f.eof())
```
```
    {
```
```
        x.push_back(sv);
```
```
        f >> sv;
```
```
    }
```
```
 
```
```
    f.close();
```
```
}
```
```
 
```

void ellkiiras(const vector<double> &hom)

```
{
```
```
    for (int i=0; i<hom.size(); ++i)
```
```
    {
```

        cout << i << ".: " << hom[i] << endl;

```
    }
```
```
}
```
```
 
```

void fel1(const vector<double> hom, double &atlag)

```
{
```
```
    double s=0;
```
```
    int n=hom.size();
```
```
    for (int i=0; i<n; ++i)
```
```
    {
```
```
        s+=hom[i];
```
```
    }
```
```
    atlag=s/n;
```
```
}
```
```
 
```

void fel3(const vector<double> hom, int &leghidegebbnap)

```
{
```
```
    double max=hom[0];
```
```
    leghidegebbnap=0;
```
```
    for (int i=0; i<hom.size(); ++i)
```
```
    {
```
```
        if (hom[i]<max)
```
```
        {
```
```
            leghidegebbnap=i;
```
```
            max=hom[i];
```
```
        }
```
```
    }
```
```
}
```
```
 
```

void fel7(const vector<double> hom, bool &van, int &ind)

```
{
```
```
    ind=0;
```

    while (ind<hom.size() && hom[ind]!=hom[ind+1])

```
    {
```
```
        ++ind;
```
```
    }
```
```
    van=ind<hom.size();
```
```
}
```

Continue reading →

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