杭电题目acm部分答案_精品.docVIP

1001 Sum Problem 2 1089 A+B for Input-Output Practice (I) 4 1090 A+B for Input-Output Practice (II) 6 1091 A+B for Input-Output Practice (III) 8 1092 A+B for Input-Output Practice (IV) 9 1093 A+B for Input-Output Practice (V) 11 1094 A+B for Input-Output Practice (VI) 12 1095 A+B for Input-Output Practice (VII) 13 1096 A+B for Input-Output Practice (VIII) 14 2000 ASCII码排序 16 2001计算两点间的距离 17 2002计算球体积 19 2003求绝对值 20 2004成绩转换 21 2005第几天？ 22 2006求奇数的乘积 24 2007平方和与立方和 26 2008数值统计 27 2009求数列的和 28 2010水仙花数 29 2011多项式求和 31 2012素数判定 33 2014青年歌手大奖赛_评委会打分 34 2015偶数求和 36 2016数据的交换输出 38 2017字符串统计 40 2019数列有序! 41 2020绝对值排序 43 2021发工资咯：） 45 2033人见人爱A+B 46 2039三角形 48 2040亲和数 49  1001 Sum Problem Problem Description Hey, welcome to HDOJ(Hangzhou Dianzi University Online Judge).In this problem, your task is to calculate SUM(n) = 1 + 2 + 3 + ... + n. ? Input The input will consist of a series of integers n, one integer per line. ? Output For each case, output SUM(n) in one line, followed by a blank line. You may assume the result will be in the range of 32-bit signed integer. ? Sample Input 1 100 ? Sample Output 1 5050 ? Author DOOM III 解答： #includestdio.h main() { int n,i,sum; sum=0; while((scanf(%d,n)!=-1)) { sum=0; for(i=0;i=n;i++) sum+=i; printf(%d\n\n,sum); } }  1089 A+B for Input-Output Practice (I) Problem Description Your task is to Calculate a + b.Too easy?! Of course! I specially designed the problem for acm beginners. You must have found that some problems have the same titles with this one, yes, all these problems were designed for the same aim. ? Input The input will consist of a series of pairs of integers a and b, separated by a space, one pair of integers per line. ? Output For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input. ? Sample Input 1 5 10 20 ? Sample Output 6 30 ? Author lcy ? Recommend