c语言sscanf函数的用法是什么
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2022-08-31
ZOJ 1871:Steps
Steps
Time Limit: 2 Seconds Memory Limit: 65536 KB
One steps through integer points of the straight line. The length of a step must be nonnegative and can be by one bigger than, equal to, or by one smaller than the length of the previous step.
What is the minimum number of steps in order to get from x to y? The length of the first and the last step must be 1.
Input
For each test case, a line follows with two integers: 0 <= x <= y < 2^31.
Output
For each test case, print a line giving the minimum number of steps to get from x to y.
Sample Input 45 48 45 49 45 50
Sample Output 3 3 4
Source: University of Waterloo Local Contest 2000.01.29
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