I have several doubts with this problem ... first, when I have to take into account that two cranes overlap?, When the distance between the centers less the sum of the radius is \"less than zero\" or \"less than or equal.\" I\'ve tried this, but I get an answer wrong, and I am doing all possible combinations. I do not see why I can give the wrong answer. Excuse my English it\'s a little bad .. I am Cuban

I have several doubts with this problem ... first, when I have to take into account that two cranes overlap?, When the distance between the centers less the sum of the radius is \"less than zero\" or \"less than or equal.\" I\'ve tried this, but I get an answer wrong, and I am doing all possible combinations. I do not see why I can give the wrong answer. Excuse my English it\'s a little bad .. I am Cuban

Please, if you can help me write to my email ... Thanks in advance..
email :  ybruceta@estudiantes.uci.cu

I have several doubts with this problem ... first, when I have to take into account that two cranes overlap?, When the distance between the centers less the sum of the radius is \"less than zero\" or \"less than or equal.\" I\'ve tried this, but I get an wrong answer, and I am doing all possible combinations. I do not see why I can give the wrong answer. Excuse my English it\'s a little bad .. I am Cuban
Please, if you can help me write to my email ... Thanks in advance..
email : ybruceta@estudiantes.uci.cu