题目链接:https://vjudge.net/problem/HDU-4686 Arc of Dream Time Limit: 2000/2000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 5506    Accepted Submission(s): 1713 Problem Description An Arc of Dream is a curve defined…

Arc of Dream Time Limit: 2000/2000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 4246    Accepted Submission(s): 1332 Problem Description An Arc of Dream is a curve defined by following function: wherea0 = A0ai = a…

Arc of Dream Time Limit: 2000/2000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 2010    Accepted Submission(s): 643 Problem Description An Arc of Dream is a curve defined by following function:wherea0 = A0ai = ai-…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=4686 题目大意: 已知a0=A0, ai=Ax*ai-1+Ay; b0=B0, bi=Bx*bi-1+By; 求∑ai*bi(i=0-->n-1). n不超过1018,A0,Ax,Ay,B0,Bx,BY不超过2*109. 题目分析: 因为n很大,不可能用递推来做,这个时候就想到了矩阵的方法.构造了好几个满足要求的,但都是仅仅满足ai或者bi的,最后才发现,把ai*bi按递推式展开, ai*bi=A…

欢迎访问~原文出处——博客园-zhouzhendong 去博客园看该题解 题目传送门 - HDU4686 题意概括 a0 = A0 ai = ai-1*AX+AY b0 = B0 bi = bi-1*BX+BY 求AoD(n) n=0时答案为0!!!! 题解 具体的矩阵构建思路指导可以参考例题链接. 这里仅提供运算过程. Ai=Ai-1*AX+AY Bi=Bi-1*BX+BY AiBi=(Ai-1*AX+AY)(Bi-1*BX+BY)    =AX*BX*Ai-1*Bi-1+AX*BY*Ai-1…

Arc of Dream Time Limit: 2000/2000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others) Total Submission(s): 932    Accepted Submission(s): 322 Problem Description An Arc of Dream is a curve defined by following function:where a0 = A0 ai = a…

Arc of Dream [题目链接]Arc of Dream [题目类型]矩阵 &题解: 这题你做的复杂与否很大取决于你建的矩阵是什么样的,膜一发kuangbin大神的矩阵: 还有几个坑点:当n是0 输出0;建矩阵时是相乘的一定要取模M,因为如果不取模最大的情况是1e9*2e9*2e9,爆long long 这块坑了我好长时间. &代码: #include <cstdio> #include <bitset> #include <iostream> #…

矩阵高速幂: 依据关系够建矩阵 , 高速幂解决. Arc of Dream Time Limit: 2000/2000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others) Total Submission(s): 2164    Accepted Submission(s): 680 Problem Description An Arc of Dream is a curve defined by following fun…

An Arc of Dream is a curve defined by following function: where a 0 = A0 a i = a i-1*AX+AY b 0 = B0 b i = b i-1*BX+BY What is the value of AoD(N) modulo 1,000,000,007? InputThere are multiple test cases. Process to the End of File. Each test case con…

Time Limit: 2000/2000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others) Total Submission(s): 3354    Accepted Submission(s): 1055 Problem Description An Arc of Dream is a curve defined by following function: where a0 = A0 ai = ai-1*AX+AY…