thanks to http://stackoverflow.com/questions/2144459/using-scanf-to-accept-user-input and http://stackoverflow.com/questions/456303/how-to-validate-input-using-scanf for the i/o part. thanks to http://www.haodaima.net/art/137347 for the rounding part…

C. Jeff and Rounding time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Jeff got 2n real numbers a1, a2, ..., a2n as a birthday present. The boy hates non-integer numbers, so he decided to sli…

C. Jeff and Rounding time limit per test:  1 second memory limit per test: 256 megabytes input: standard input output: standard output Jeff got 2n real numbers a1, a2, ..., a2n as a birthday present. The boy hates non-integer numbers, so he decided t…

A. Rounding time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vasya has a non-negative integer n. He wants to round it to nearest integer, which ends up with 0. If n already ends up with 0, V…

SAP MM 物料主数据MRP2 视图Rounding Value字段 如下物料号,MRP2视图中,维护了rounding value字段值为50. MRP type :PD Lot size:EX Minmum lot size:500 Rounding value:50 Safety stock:515 MD04结果, MD02 run MRP, 再去看MD04, 触发的PR数量是550, 为什么不是515?因为我们维护了rounding value(最小包装量),所以需求数量是515,即1…

我最开始其实是由于疑惑ROUND_FLOOR和 ROUND_DOWN的表现区别才看了一波文档,但是感觉拉出一票以前没有留意过的东西. 贴一个decimal文档里面的解释: ROUND_CEILING (towards Infinity), ROUND_DOWN (towards zero), ROUND_FLOOR (towards -Infinity), ROUND_HALF_DOWN (to nearest with ties going towards zero), ROUND_HALF_…

http://codeforces.com/problemset/problem/351/A 题意: 2*n个数,选n个数上取整,n个数下取整 最小化 abs(取整之后数的和-原来数的和) 先使所有的数都下取整,累积更改的sum 那么选1个小数上取整,就会使sum-1 整数上下取整不会产生影响 所以有1个整数就可以使上取整的小数少1个 所以ans=min(abs(i-sum)) i∈[n-整数个数,n] #include<cmath> #include<cstdio> #inclu…

题意翻译 给你一个数字,将其“四舍六入”,末尾为5舍去或进位都可,求最终的数字. 题目描述 Vasya has a non-negative integer n n n . He wants to round it to nearest integer, which ends up with 0 0 0 . If n n n already ends up with 0 0 0 , Vasya considers it already rounded. For example, if n=472…

  A. Rounding   time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vasya has a non-negative integer n. He wants to round it to nearest integer, which ends up with 0. If n already ends up with …

A. Rounding time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vasya has a non-negative integer n. He wants to round it to nearest integer, which ends up with 0. If n already ends up with 0, V…