2cm的专栏

time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output There is a programing contest named SnakeUp, 2n people want to c

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Problem Description Given a sequence A with length n,count how many quadruple (a,b,c,d) satisfies: a≠b≠c≠d,1≤a< b≤n, 1

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Problem Description P is a permutation of the integers from 1 to N(index starting from 1). Here is the code of Bubble

time limit per test 1 second memory limit per test256 megabytes The array a with n integers is given. Let’s call the sequence of one or more consecutive elements in a segment. Also let’s call the se

time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output You are given n segments on the coordinate axis Ox and the num

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard outputFamil Door wants to celebrate his birthday with his friends from Far Far Away. He has n frien

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Wilbur is playing with a set of n points on the coordinate plane. All points have non-negat

time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Olesya loves numbers consisting of n digits, and Rodion only like

time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Kolya loves putting gnomes at the circle table and giving them co

time limit per test2 seconds memory limit per test256 megabytesLesha plays the recently published new version of the legendary game hacknet. In this version character skill mechanism was introduced. N