the Sum of Cube Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 405 Accepted Submission(s): 224 Problem Description A range is given, the begin and the end are both integers. You should sum…
水 #include <stdio.h> #include <stdlib.h> #include<math.h> #include<iostream> #define LL long long using namespace std; int main() { int t; int a,b; int cas; LL sum; while(~scanf("%d",&t)) { ;i<=t;i++) { sum=; scanf…
Description A range is given, the begin and the end are both integers. You should sum the cube of all the integers in the range. Input The first line of the input is T(1 <= T <= 1000), which stands for the number of test cases you need to solve. E…
Problem Description Given a sequence 1,2,3,......N, your job is to calculate all the possible sub-sequences that the sum of the sub-sequence is M. Input Input contains multiple test cases. each case contains two integers N, M( 1 <= N, M <= 1000000…
Least Common Multiple (HDU - 1019) [简单数论][LCM][欧几里得辗转相除法] 标签: 入门讲座题解 数论 题目描述 The least common multiple (LCM) of a set of positive integers is the smallest positive integer which is divisible by all the numbers in the set. For example, the LCM of 5, 7…
HDU 5073 Galaxy (2014 Anshan D简单数学) 题目链接http://acm.hdu.edu.cn/showproblem.php?pid=5073 Description Good news for us: to release the financial pressure, the government started selling galaxies and we can buy them from now on! The first one who bought…
HDU 1024 Max Sum Plus Plus (动态规划) Description Now I think you have got an AC in Ignatius.L's "Max Sum" problem. To be a brave ACMer, we always challenge ourselves to more difficult problems. Now you are faced with a more difficult problem. Given…
Sigma Function (LightOJ - 1336)[简单数论][算术基本定理][思维] 标签: 入门讲座题解 数论 题目描述 Sigma function is an interesting function in Number Theory. It is denoted by the Greek letter Sigma (σ). This function actually denotes the sum of all divisors of a number. For exam…
Goldbach`s Conjecture(LightOJ - 1259)[简单数论][筛法] 标签: 入门讲座题解 数论 题目描述 Goldbach's conjecture is one of the oldest unsolved problems in number theory and in all of mathematics. It states: Every even integer, greater than 2, can be expressed as the sum of…
the Sum of Cube Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 162 Accepted Submission(s): 101 Problem Description A range is given, the begin and the end are both integers. You should sum t…
题目链接:hdu 3415 Max Sum of Max-K-sub-sequence 题意: 给你一串形成环的数,让你找一段长度不大于k的子段使得和最大. 题解: 我们先把头和尾拼起来,令前i个数的和为sum[i]. 然后问题变成了求一个max{sum[i]-sum[j]}(i-k<j<i) 意思就是对于每一个sum[i],我们只需要找一个满足条件的最小的sum[j],然后我们就可以用一个单调队列来维护. #include<bits/stdc++.h> #define F(i,a…
A range is given, the begin and the end are both integers. You should sum the cube of all the integers in the range. InputThe first line of the input is T(1 <= T <= 1000), which stands for the number of test cases you need to solve. Each case of inp…
题目链接:hdu 5381 The sum of gcd 将查询离线处理,依照r排序,然后从左向右处理每一个A[i],碰到查询时处理.用线段树维护.每一个节点表示从[l,i]中以l为起始的区间gcd总和.所以每次改动时须要处理[1,i-1]与i的gcd值.可是由于gcd值是递减的,成log级,对于每一个gcd值记录其区间就可以.然后用线段树段改动,可是是改动一个等差数列. #include <cstdio> #include <cstring> #include <vecto…
HDU5053the Sum of Cube(水题) 题目链接 题目大意:给你L到N的范围,要求你求这个范围内的全部整数的立方和. 解题思路:注意不要用int的数相乘赋值给longlong的数,会溢出. 代码: #include <cstdio> #include <cstring> const int N = 10005; typedef long long ll; ll t[N]; void init () { for (ll i = 1; i <= N - 5; i++…
the Sum of Cube Time Limit : 2000/1000ms (Java/Other) Memory Limit : 32768/32768K (Java/Other) Total Submission(s) : 1 Accepted Submission(s) : 1 Problem Description A range is given, the begin and the end are both integers. You should sum the cu…