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A number is called massive if it can be written in the form $a^n$, that is, $a$ raised to the power of $n$.

For the celebration, the Professor bought balloons of three colors: blue, red, and yellow. In total, he bought $n$ balloons. The number of yellow and blue balloons is $a$, and the number of red and blue balloons is $b$.

Solve the quadratic equation $a\cdot x^2+b\cdot x+c=0(a\ne 0)$.

You are going to toast some slices of bread for an upcoming party. You have a frying pan that can hold at most $k$ toasts at the same time. Toasting one side of a toast takes $2$ minutes.

An array of $n$ integers is given. Find the number of maximum elements in the array.

The project "Average Weight of a School Student" was undertaken by Mamed and Samed.

Even in ancient times, the Egyptians knew that a triangle with sides $3$, $4$, and $5$ is a right triangle, with its right angle being the largest one. Determine whether other triangles also have this property.