tromino问题，棋盘覆盖，算法中的分治法-tromino problems, board cover, divide and conquer algorithm

Algoritmo del Tromino, colocar piezas en un tablero n x n, visualizandolo en consola. Con la tecnica de Divide y Vencerás

用C++解决Tromino问题，根据用户输入的数字大小，解决不同规模问题-Tromino with C++ solve the problem, according to figures the size of user input, to solve the problem of different sizes