2011NOKIA笔试题目

    今天去NOKIA机试，纯粹打酱油，没什么准备，题目貌似不难，但时间和空间效率都要求很高，现场调试成功还是要相当的水准的。

以后要好好练练北大ACM上的题目了。以下题目自然输入项范围都很大，时间和空间效率要求最优。题目细节记不太清了，大致翻译而已。全部只能用C语言完成。

1. 输入： char *S

<span style="white-space: pre;"> </span>字符串S是a-z的任意字符组成的乱序字符串，没有任何规律。

  要求判断经过顺序调整，字符串S可否变成回文数。

<span style="white-space: pre;"></span>输出：

<span style="white-space: pre;"></span>可变为回文数输出为1,不能变成输出为0.

<span style="white-space: pre;"></span>例如：

<span style="white-space: pre;"></span>wjockwajiaock可变为回文数

<span style="white-space: pre;"></span>wojackikcajow ，返回1.

<span style="white-space: pre;"></span>abcbba,不能变为回文数，返回0.

<span style="white-space: pre;"></span>

2. 判断十进制整数N,在m（2<=m<=36)进制下，经进制变换后要求用<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px; line-height: 20px;">big endian顺序输出结果。</span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"> 例如：</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"> 当m=16，N=31，输出应为1f。</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"> 当m=26,N= 70 ，输出应为2i。</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"> 当m=21,N=62，输出应为2k。</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"> </span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;">3.已知数组A[N],当然数组很大，数组元素值为整数，有正有负，求使连续下标区间内所有元素和最大的值。(附加项：记录区间下标)</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;">例如：A[0]=-1,A[1]=8,A[2]=3,A[3]=-6</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A(0,0)=-1</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A(0,1)=7</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A(0,2)=10</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A(0,3)=4</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A(1,1)=8</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A(1,2)=11</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A(1,3)=5</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A(2,3)=-3</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A(3,3)=-6</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;">输出值为A(1,2),11。</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;">4.求一个数组A[N]内，输出所有不满足当下标i<j时，而数组元素值A[i]>A[j]的所有元素值和下标对。（貌似是这个意思，有少许改动）</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>例如：</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A[0]=5,A[1]=3,A[2]=4,A[3]=2,A[4]=3</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>输出</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span>A[1]和A[2],A[1]和A[4],A[3]和A[4]。</span></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><br></span>

<span style="font-family: Verdana,Geneva,Arial,Helvetica,sans-serif; font-size: 13px;"><span style="line-height: 20px;"><span style="white-space: pre;"></span></span></span>