Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 3448 Accepted: 2318
Most positive integers may be written as a sum of a sequence of at least two consecutive positive integers. For instance,
6 = 1 + 2 + 3
9 = 5 + 4 = 2 + 3 + 4but 8 cannot be so written.
The first line of input will contain the number of problem instances N on a line by itself, (1 ≤ N ≤ 1000) . This will be followed by N lines, one for each problem instance. Each problem line will have the problem number, a single space and the number to be written as a sequence of consecutive positive integers. The second number will be less than 231 (so will fit in a 32-bit integer).
The output for each problem instance will be a single line containing the problem number, a single space and the number of ways the input number can be written as a sequence of consecutive positive integers.
71 62 93 84 18005 9876543216 9876543237 987654325
1 12 23 04 85 176 17 23
题意明确这里不重复 思路：等差数列的求和公式na1+n(n-1)d/2 式中的n为代码中的i，式中的a1为代码中的j