== include(page="template/taskheader" task_id="ecu2") ==

Poveste si cerinta...

Se da o ecuatie de forma $a*X^2^ + b*X + c = 0$. Determinati cate solutii reale are ecuatia data.

h2. Date de intrare

...

Prima linie a fisierului de intrare $ecu2.in$ contine un numar intreg $Q$, reprezentand numarul de ecuatii ce urmeaza. Fiecare din urmatoarele $Q$ linii contine $3$ numere intregi, separate prin spatii, $a$, $b$ si $c$, care definesc o ecuatie.
 
The first line of input contains an integer number Q, representing the number of equations to follow. Each of the next Q lines contains 3 integer numbers, separated by blanks, a, b and c, defining an equation. The numbers are from the interval [-1000,1000].

h2. Date de iesire

...

Pentru fiecare din cele $Q$ ecuatii, in ordinea data in fisierul de intrare, afisati in fisierul de iesire $ecu2.out$ o linie continand numarul de solutii reale ale ecuatiei. Afisati $"INF"$ daca ecuatia are un numar infinit de solutii reale.

h2. Restrictii

* $... ≤ ... ≤ ...$

* $1 ≤ Q ≤ 100$
* $-1000 ≤ a, b, c ≤ 1000$
 

h2. Exemplu
table(example). |_. ecu2.in |_. ecu2.out |

| This is some
  text written on
  multiple lines.
| This is another
  text written on
  multiple lines.

|3
1 0 0
1 0 -1
0 0 0
|1
2
INF

|

h3. Explicatie
 
...
 

== include(page="template/taskfooter" task_id="ecu2") ==