Problem descriptionThere are N non-0 integers that are not identical. Please make up a program to find out how many pairs of opposite numbers are in them (a and-A are pairs of opposite numbers).Input formatThe first line consists of a positive
Problem descriptionThere are N non-0 integers that are not identical. Please make up a program to find out how many pairs of opposite numbers are in them (a and-A are pairs of opposite numbers).Input formatThe first line consists of a positive
Recently the hand of a new station snapshot is not normal, included in the page is very few. At the beginning has not cared about, is also a lot of things, now the matter is almost, the results found a snapshot of the mess, the chain is very few. So
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After the website completes, insists the renewal every day, insists the soft article creation, its goal is merely wants to cause the search engine the attention, causes oneself in the search the rank front. But for a lot of new station friends, it
A note on the wisdom and wisdom of the SutraMaster of HeadroomLiu Cheng Furgus KeeThe clearance Mage spoke for a week at the CUPERTINO Society of Goppotino, California, on March 1, 1994. The Zhang Dexieng to give a seven volume of the tape, after
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