We have a group of N items (represented by integers from 1 to N), and we know that there is some total order defined for these items. You may assume that no two elements will be equal (for all a, b: a<b or b<a). However, it is expensive to comp

This program finds the sum of all integers from 1 up to the number entered, excluding all numbers divisible by 3 and all even numbers that are less than 10 and display sum.

The Triangle 时间限制：1000 ms | 内存限制：65535 KB 难度：4 描述 7 3 8 8 1 0 2 7 4 4 4 5 2 6 5 (Figure 1) Figure 1 shows a number triangle. Write a program that calculates the highest sum of numbers passed on a route that starts at the top and

函数一：判断从3到100之间有多少个素数，并输出所有的素数 函数二：如果一个数恰好等于它的因子之和，那么这个数就称为 "完数 ".此程序是找出1--500之间的所有完数并输出出来 函数三：有1、2、3四个数字，能组成多少个互不相同且无重复数字的三位数？都是多少？ 函数四：输入三个整数a,b,c，请把这三个数由小到大输出。 函数五：输出乘法表（9*9）-Function one: determine how many prime numbers between 3-100 from