Triangular Sums 时间限制:3000 ms  |  内存限制:65535 KB 难度:2   描述 The nth Triangular number, T(n) = 1 + … + n, is the sum of the first n integers. It is the number of points in a triangular array with n points on side. For example T(4): XX X X X X X X X X Wri…

描述 The nth Triangular number, T(n) = 1 + … + n, is the sum of the first n integers. It is the number of points in a triangular array with n points on side. For example T(4): XX XX X XX X X X Write a program to compute the weighted sum of triangular n…

http://poj.org/problem?id=3086 http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=1773 让你计算两个递推式: T(n)=sum[1--n] W(n) = SUM[k = 1-n; k * T(k + 1)] 思路: 直接计算即可. #include<cstdio> const int MAXN=302; int T[MAXN]={0} , w[MAXN]={0}; int main() { f…

Triangular Sums 时间限制:3000 ms  |  内存限制:65535 KB 难度:2   描述 The nth Triangular number, T(n) = 1 + - + n, is the sum of the first n integers. It is the number of points in a triangular array with n points on side. For example T(4): X X X X X X X X X X Wr…

小技巧:本文之前由csdn自动生成了一个目录,不必下拉一个一个去找,可通过目录标题直接定位. 本文转载自本人的csdn博客,复制过来的,排版就不弄了,欢迎转载. 声明: 题目部分皆为南阳OJ题目. 代码部分包含AC代码(可能不止一个)和最优代码,大部分都是本人写的,并且大部分为c代码和少部分c++代码and极少java代码,但基本都是c语言知识点,没有太多差别,可能代码有的写的比较丑,毕竟知识有限. 语言入门部分题基本都较为简单,是学习编程入门的很好练习,也是ACM的第一步,入门的最佳方法,望认…

各种杂题,水题,模拟,包括简单数论. 1001 A+B 1002 A+B+C 1009 Fat Cat 1010 The Angle 1011 Unix ls 1012 Decoding Task 1019 Grandpa's Other Estate 1034 Simple Arithmetics 1036 Complete the sequence! 1043 Maya Calendar 1054 Game Prediction 1057 Mileage Bank 1067 Rails 10…

容错声明: ①题目选自https://acm.ecnu.edu.cn/,不再检查题目删改情况 ②所有代码仅代表个人AC提交,不保证解法无误 E0001  A+B Problem First AC: 2017-10-13       Latest Modification: 2018-02-28 #include<bits/stdc++.h> using namespace std; int a,b; int main() { cin>>a>>b; cout<<…

122-Triangular Sums 内存限制:64MB 时间限制:3000ms 特判: No 通过数:5 提交数:7 难度:2 题目描述: The nth Triangular number, T(n) = 1 + … + n, is the sum of the first n integers. It is the number of points in a triangular array with n points on side. For example T(4): X X X X…

You are given two integer arrays nums1 and nums2 sorted in ascending order and an integer k. Define a pair (u,v) which consists of one element from the first array and one element from the second array. Find the k pairs (u1,v1),(u2,v2) ...(uk,vk) wit…

UVA - 11997 K Smallest Sums Time Limit: 1000MS   Memory Limit: Unknown   64bit IO Format: %lld & %llu [Submit]   [Go Back]   [Status] Description   Problem K K Smallest Sums You're given k arrays, each array has k integers. There are kk ways to pick…