微软面试题[1-2]

来源：互联网发布：数据检索编辑：程序博客网时间：2024/05/01 07:17

1.Given a rectangular(cuboidal for the puritans) cake whith a rectangular piece removed (
any size or orientation), how would you cut the remainder of the cake into two equal halves with one straight cut of a knife?

译：给定一块已在任意位置用任意方向切去一个矩形块的矩形蛋糕（注意是立体的，质量均匀的），怎样用一刀切出相等重量的两块来？

找出这两个矩形块的中心点m和n，然后切面a可以垂直矩形的任意面，但是必须过m和n点，这样切后的两块蛋糕在体积上是相等了

2. You're given anarray containing both positive and negative integers and required to find thesub-array with the largest sum (O(N) a la KBL). Write a routine in C for theabove.

一个矩阵中包含正数和负数，要求寻找和最大的子矩阵

int main()
{

int a[] ={ -2,30,-5,-13,-19,1,-3,2};
int len=8;
int sum=0,beg=0,end=0,maxBeg=0,maxEnd=0,maxSum=0,i=0;
maxBeg=i;
maxEnd=i;

while (i < len)
{
sum +=a [ i ];
if( sum > maxSum )
{
   maxSum = sum;
   maxEnd = end;
   maxBeg = beg;
}
else if( sum < 0 )
{
   beg = i + 1;
   sum = 0;
}
i++;
end++;
}

    printf("beg %d,end %d,sum %d",maxBeg,maxEnd,maxSum);

return 0;
}