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back to boardVery Very Very Simple every body handshakes all else his couple so n*(n-1) div 2 - k (couples doesnt handshake eachother)! --> Var n,k:integer; begin readln(n,k); writeln(((n*(n-1)) div 2) -k); end. Aidin_n7 it's not right to post the accepted program. Posted by Koala 23 Aug 2003 16:40 Re: Very Very Very Simple n(n-1)/2-k。。。 Re: Very Very Very Simple Posted by BillSu 27 Apr 2014 10:30 What is The Autor Thinking? What's the meaning of the spliting group numbers? It just piss me off. Re: Very Very Very Simple Yep, this is the one way for solution. I've met problem like that earlier. Statements consist kinda "you need to get very-very much operation with binary code of number", but after some tests we understood, that solution was kinda "ans = n*(-1)". And it's good to have a short cut in problems for clever men;) |
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