Arithmetic of Bomb Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 129 Accepted Submission(s): 94 Problem Description 众所周知,度度熊非常喜欢数字. 它最近在学习小学算术,第一次发现这个世界上居然存在两位数,三位数……甚至N位数! 但是这回的算术题可并不简单,由于…
Arithmetic of Bomb Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 151 Accepted Submission(s): 108 Problem Description 众所周知,度度熊非常喜欢数字. 它最近在学习小学算术,第一次发现这个世界上居然存在两位数,三位数……甚至N位数! 但是这回的算术题可并不简单,由…
http://acm.hdu.edu.cn/showproblem.php?pid=5400 Arithmetic Sequence Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1151 Accepted Submission(s): 501 Problem Description A sequence b1,b2,⋯,bn a…
Problem Description A sequence b1,b2,⋯,bn are called (d1,d2)-arithmetic sequence ≤i≤n) such that ≤j<i),bj+=bj+d1 and =bj+d2. Teacher Mai has a sequence a1,a2,⋯,an. He wants to know how many intervals [l,r](≤l≤r≤n) there are that al,al+,⋯,ar are (d1,d…
主要是要知道它对于等差数列的定义,单个数也可以作为等差数列且一定满足题意,另外就是要算清楚区间与区间的关系,考虑两大类情况,一种是d1区间和d2区间连在一起,另外一种情况就是其余情况. #include<iostream> #include<cstdio> #include<cstring> #define MAXN 100005 long long num[MAXN]; bool tag[MAXN]; using namespace std; long long ge…
Arithmetic of Bomb Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description 众所周知,度度熊非常喜欢数字. 它最近在学习小学算术,第一次发现这个世界上居然存在两位数,三位数……甚至N位数! 但是这回的算术题可并不简单,由于含有表示bomb的#号,度度熊称之为 Arithmetic of Bomb. ![](../../../da…