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431 / 434
Calculate the number of all such permutations.
As this number can be large, print it modulo (1e9 +7).
Constraints
0 <= low <= high <= 10^9
K <= 10^6.
Input
First line contains two space separated integers denoting low and high respectively
Second line contains a single integer K.
Output
Print a single integer denoting the number of all such permutations Input
First line contains two space separated integers denoting low and high respectively
Second line contains a single integer K.
Output
Print a single integer denoting the number of all such permutations
Input : 4 5
3
Output :





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Tags:TCS Digital
432 / 434
Your task is that given the location of the first tree that catches fire, determine how long would it take for the entire forest to be on fire. You may assume that the lay out of the forest is such that the whole forest will catch fire for sure and that there will be at least one tree in the forest
Input Format:
First line contains two integers, M, N, space separated, giving the size of the forest in terms of the number of rows and columns respectively.
The next line contains two integers X,Y, space separated, giving the coordinates of the first tree that catches the fire.
The next M lines, where ith line containing N characters each of which is either T or W, giving the position of the Tree and Water in the ith row of the forest.
Output Format:
Single integer indicating the number of minutes taken for the entire forest to catch fire
Input : 3 3
W T T
T W W
W T T
Output :





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433 / 434
Input Format
2 numbers a and b, separated by space.
Output Format
A single number greater than b.
If not possible, print 1
Constraints
1 <= a,b <= 10000000
Input : 459 500
Output :





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434 / 434
For example, R = 2 and N = 3
All possible seating arrangements are
(1,2) & (3)
(1,3) & (2)
(2,3) & (1)
Attendees are numbered from 1 to N.
Input Format:
The first line contains T denoting the number of test cases.
Each test case contains two space separated integers R and N, Where R denotes the number of round tables and N denotes the number of attendees.
Output Format:
Single Integer S denoting the number of possible unique arrangements.
Constraints:
0 <= R <= 10(Integer)
0 < N <= 20 (Integer)
Input : 1
2 5
Output :





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Tags:TCS Digital
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