#include<stdio.h> int main(void){ int n1, n2,n3; n1=333*(3+999)/2; n2=199*(5+995)/2; n3=66*(15+990)/2; printf("%d\n",n1+n2-n3); n1=getchar(); return 0; } Multiples of 3 and 5 Problem 1 If we list all the natural numbers below 10 that are m…

Multiples of 3 and 5 原题 题意如下: 找出N以内的3和5的倍数的和. 思路 1.刚看到觉得好弱智,直接遍历一遍不就OK了吗?但是第2和第3个测试用例报了TLE,超时. 2.然后想不出来了,搜了一下,发现有一个类似的题计算1000以内的3和5的倍数的和,用的是算出3的倍数的和加上5的倍数的和减去15的倍数的和,因为是直接计算所以不需要遍历,自然就快了.按照同样的思路,可以找到小于N的最大的3的倍数,5的倍数和15的倍数. 代码 int main(){ int t; cin >…

1.Multiples,Size,and Origin eg:background-image:url(bg.png),url(bullet.png) 0 50% no-repeat,url(arrow.png) right no-repeat background-image background-color background-position background-size:auto length percentage  contain cover background-repeat b…

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000. 题目大意: 10以下的自然数中,属于3和5的倍数的有3,5,6和9,它们之和是23. 找出1000以下的自然数中,属于3和5的倍…

小白一枚,python解法,共同学习,一起进步. Problem 1: Multiples of 3 and 5 If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000. 解题思路: 找…

D. Concatenated Multiples You are given an array aa, consisting of nn positive integers. Let's call a concatenation of numbers xx and yy the number that is obtained by writing down numbers xx and yy one right after another without changing the order.…

[题目一]If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.Find the sum of all the multiples of 3 or 5 below 1000. [翻译]10以下的自然数中,属于3和5的倍数的有3,5,6和9,它们之和是23. 找出1000以下的自然数中,属于3和5…

题目要求是: If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000. 这个题目提供两种方法来计算. 方法一:采用最笨拙的方式,直接从1到1000,每一个数都去看看是否可以被3或者5整除…

Factors and Multiples Time Limit: 2000MS   Memory Limit: 32768KB   64bit IO Format: %lld & %llu Submit Status Description You will be given two sets of integers. Let's call them set A and set B. Set A contains n elements and set B contains m elements…

Factors and Multiples   PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB You will be given two sets of integers. Let's call them set A and set B. Set A contains n elements and set B contains m elements. You have to remove k1…