describtion:
Find any position of a target number in a sorted array. Return -1 if target does not exist.
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Example
Given [1, 2, 2, 4, 5, 5].
For target = 2, re...
A sequence of numbers
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 6136 Accepted Submission(s): 1976Problem Description
Xinlv wrote some sequences on ...
Prepared for New Acmer
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 7683 Accepted Submission(s): 2909
Problem Description
集训进行了将近2个礼拜,...
其思想是利用数学公式: (a * b ) mod c = (( a mod c) * b) mod c;
首先把 b 转化成二进制如: b0 b1 b2 b3..... b31 即 b = b0*231 + b1*230+......+ b31;也就是把 ab = a ^ (b0*231 + b1*230+......+ b31) = [a(b0*2^31)] * [a(b1*2^3...