Eqs Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 15010   Accepted: 7366 Description Consider equations having the following form:  a1x13+ a2x23+ a3x33+ a4x43+ a5x53=0  The coefficients are given integers from the interval [-50,50].  I…

Eqs 题目链接:http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=15029 题意: 给出系数a1,a2,a3,a4,a5,求出方程a1x1 3+ a2x2 3+ a3x3 3+ a4x4 3+ a5x5 3=0 有多少个解. 样例: Sample Input 37 29 41 43 47 Sample Output 654 分析: 如果直接用5个for循环是会超时的,所以把方程a1x1x1x1+a2x2x2x2+a3x3x…

Eqs Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 18299   Accepted: 8933 Description Consider equations having the following form: a1x13+ a2x23+ a3x33+ a4x43+ a5x53=0 The coefficients are given integers from the interval [-50,50]. It i…

C - Eqs Time Limit:5000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Submit Status Description Consider equations having the following form:  a1x1 3+ a2x2 3+ a3x3 3+ a4x4 3+ a5x5 3=0  The coefficients are given integers from the inter…

Eqs Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 13955   Accepted: 6851 Description Consider equations having the following form: a1x13+ a2x23+ a3x33+ a4x43+ a5x53=0 The coefficients are given integers from the interval [-50,50]. It i…

题意  输入a1,a2,a3,a4,a5  求有多少种不同的x1,x2,x3,x4,x5序列使得等式成立   a,x取值在-50到50之间 直接暴力的话肯定会超时的   100的五次方  10e了都    然后能够考虑将等式变一下形   把a1*x1^3+a2*x2^3移到右边   也就是-(a1*x1^3+a2^x2^3)=a3*x3^3+a4*x4^3+a5*x5^3 考虑到a1*x1^3+a2^x2^3的最大值50*50^3+50*50^3=12500000  这个数并不大  能够开这么大…

Eqs Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 14169   Accepted: 6972 Description Consider equations having the following form:  a1x13+ a2x23+ a3x33+ a4x43+ a5x53=0  The coefficients are given integers from the interval [-50,50].  I…

题意描述 Eqs 求一个五元方程 \(a_1x_1^3+a_2x_2^3+a_3x_3^3+a_4x_4^3+a_5x_5^3=0\) 的解的个数. 题中给出 \(a_i\) 的值并且保证 \(-50\leq a_i,x_i\leq 50,x_i\neq 0\).(\(1\leq i\leq 5\)) 算法分析 考虑暴力枚举,发现复杂度 \(100^5=10^{10}\),T 到飞起. 移项后变为:\(a_1x_1^3+a_2x_2^3+a_3x_3^3=-(a_4x_4^3+a_5x_5^3)…

Description Consider equations having the following form: a1x13+ a2x23+ a3x33+ a4x43+ a5x53=0 The coefficients are given integers from the interval [-50,50]. It is consider a solution a system (x1, x2, x3, x4, x5) that verifies the equation, xi∈[-50,…

  Description Consider equations having the following form: a1x13+ a2x23+ a3x33+ a4x43+ a5x53=0 The coefficients are given integers from the interval [-50,50]. It is consider a solution a system (x1, x2, x3, x4, x5) that verifies the equation, xi∈[-5…