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#include <cmath>
/*
5
5 5 5 4 5
3 4 1 2 1
4 4 4 4 2
2 3 4 5 2
5 4 5 4 5
*/
using namespace std;
/*Ez a resz mehetne diak.h fajlba (plusz ifndef, define), de nem a mesteren!*/
struct Diak {
int jegy[5];
int db1() //megszamlalas
{
int db = 0;
for (int i = 0; i < 5; i++)
if(jegy[i] == 1)
db++;
return db;
}
bool jo(); //kívül megírva
double tortresz() //osszegzes
{
double atl = 0.0;
for(int i = 0; i < 5; i++)
atl +=jegy[i];
atl /= 5;
return atl - floor(atl);
}
int maradek(); //kint megírva
bool feles(); //kint megírva
};
/*Ez a resz mehetne diak.cpp fajlba, de nem a mesteren!*/
bool Diak::jo() //eldontes
{
int db = 0;
int i;
for (i = 0; i < 5 && db < 2; i++)
if(jegy[i] == 1)
db++;
return db < 2; //jo, ha a végére is csak max 1 elégtelenje van
// return i == 5 hibás eredményt ad, ha az utolsó érték 1.
// T(i)-ben nincs i, ezért lehet if (db < 2 && i <5) is.
}
int Diak::maradek() //osszegzes
{
int sum = 0;
for(int i = 0; i < 5; i++)
sum += jegy[i];
return sum % 5;
}
bool Diak::feles() //összegzes + feltetel
{
int sum = 0;
for(int i = 0; i < 5; i++)
sum += jegy[i];
sum %=5;
return (sum == 2 || sum == 3);
//double atlag-os megoldás pontatlan (mesteren 90/100)
}
/*Ha a Diak másik fájban ban, akkor ide kell #include "diak.h", de nem a mesteren!*/
const int maxN = 100;
Diak csoport[maxN];
int bukofelelo(int N) //kereses, globalis tombon
{
int i;
for(i = 0; i < N && csoport[i].jo(); i++)
;
return i < N ? i : -1;
}
int felesfelelo(Diak tomb[], int N) //kereses, atvett (vagy globalis) tombon
{
int i;
for(i = 0; i < N && !tomb[i].feles(); i++)
;
return i < N ? i : -1;
}
int main()
{
//beolvasás
cerr << "a csoport letszama: ";
int N;
cin >> N;
cerr << "jegyek beolvasasa" << endl;
for (int i = 0; i < N; i++)
for (int j = 0; j < 5; j++)
cin >> csoport[i].jegy[j];
for (int i = 0; i < N; i++) {
for (int j = 0; j < 5; j++)
cerr << csoport[i].jegy[j] << 't';
cerr << endl;
}
int felelo = -1;
//feldolgozás
/*
for(int i = 0; felelo == -1 && i < N; i++)
if(csoport[i].db1() >= 2) //db1 végignézi. Minek?
felelo = i;
for(int i = 0; felelo == -1 && i < N; i++)
if(0.4 <= csoport[i].tortresz() && csoport[i].tortresz() <= 0.6) //nem jo 0.4 == tortresz, mert double. 0.6-ra sem.
//if(0.39 < csoport[i].tortresz() && csoport[i].tortresz() <= 0.59) //nem szep, magikus szam
//if(2 <= csoport[i].maradek() && csoport[i].maradek() <= 3) // egészek!! de minek most a <>?
//if(csoport[i].maradek() == 2 || csoport[i].maradek() == 3)
felelo = i;
if(felelo == -1)
felelo = 0;
*/
//inkább így
/*
int i;
for(i = 0; i < N && csoport[i].jo(); i++)
;
if (i < N)
felelo = i;
if (felelo == -1) {
for(i = 0; i < N && !csoport[i].feles(); i++)
;
if(i<N)
felelo = i;
}
if(felelo == -1)
felelo = 0;
*/
//vagy inkább így
felelo = bukofelelo(N);
if (felelo == -1)
felelo = felesfelelo(csoport, N);
if(felelo == -1)
felelo = 0;
//kiírás
cerr << "eredmeny: ";
cout << felelo + 1 << endl;
return 0;
}
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