SP6986 SUMSLOPE - Summing Slopes

A digit in a number N is a minima if it is lesser than both the digits adjacent to it. Similarly, a digit is a maxima if it is greater than both the digits adjacent to it. The slope of N is the number of digits in N (leaving out the first and the last digit) which are either a minima or a maxima. Given A and B, count the sum of the slopes of all numbers between A and B. Input : The first line contains the number of test cases T. Each of the next T lines contains two integers A and B. Output : Output T lines one for each test case, containing the required sum for the corresponding test case. Sample Input : 3 101 101 1 100 100 150 Sample Output : 1 0 19 Constraints : 1

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