Problem Description
Given a sequence a[1],a[2],a[3]......a[n], your job is to 
calculate the max sum of a sub-sequence. For example, given (6,-1,5,4,-7), the 
max sum in this sequence is 6 + (-1) + 5 + 4 = 14.
 
 
Input
The first line of the input contains an integer 
T(1<=T<=20) which means the number of test cases. Then T lines follow, 
each line starts with a number N(1<=N<=100000), then N integers 
followed(all the integers are between -1000 and 1000).
 
 
Output
For each test case, you should output two lines. The first 
line is "Case #:", # means the number of the test case. The second line contains 
three integers, the Max Sum in the sequence, the start position of the 
sub-sequence, the end position of the sub-sequence. If there are more than one 
result, output the first one. Output a blank line between two cases.
 
Sample 
Input
2
5 
6 -1 5 4 -7
7 0 6 -1 1 -6 7 -5
 
Sample Output
Case 
1: 
14 
1 4
Case 2: 
7 
1 6
 
 
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原文:http://www.cnblogs.com/lp2012/p/3633285.html