DCP-61: Drive In Grid Back to All Problems

Easy Math > Combinations and Permutations


In a city like New York, the roads are arrange in grid like pattern. Roads are also arranged in one way direction and you can only move right or down and never left or up. One such travel from point A to point B can be illustrated in the following picture: ![enter image description here][1] So we can see it took 11 steps to reach from point A to point B. However in our problem today, we will like to find out in how many ways we can reach from point A to point B. Input: ------ Input starts with an integer **T (1<= T <=100)**, denoting the number of test cases. Each case contains two integers **X (3 ≤ X ≤ 15)** and **Y (3 ≤ Y ≤ 15)** denoting the width and height of the grid. Output: ------- For each case of input, output the one integer **R** in a line, denoting the result - number of possible ways to reach B from A, where A is topmost and leftmost point in the grid and B is the bottom most and rightmost point in the grid. Sample Input ------------ 2 6 5 4 4 Sample Output ------------- 462 70 [1]: https://s3-ap-southeast-1.amazonaws.com/devskillimagestorage/questionimages/47ee783a-b6f1-c245-8448-08d34fbf5585_ee68b0c85e324c16b64640496b141deb_W351xH293.png


Problem Setter:

MD. Jalal Uddin

Please login to submit solution to this problem.

Problem Limits

Language Time Limit (seconds)
C 1.00
C++ 1.00
C++14 1.00
C# 2.00
Go 2.00
Java 2.00
JavaScript 2.00
Objective-C 2.00
Perl 2.00
PHP 2.00
Python 2.00
Python3 2.00
Ruby 2.00
VB.Net 2.00

Problem Stats

74/124

Solve/Submission

Ranking

# User Language Timing
01 seyedssz Cpp14 0.00s
02 sadia2427 Cpp14 0.00s
03 7Mahfuz Cpp14 0.00s
04 nazmul_bzs Cpp14 0.00s
05 nasir_32_15 Cpp14 0.00s
06 SakibAlamin Cpp14 0.00s
07 pulak_ict_mbstu Cpp 0.00s
08 Robbinb1993 Cpp 0.00s
09 wizard Cpp 0.00s
10 uzzal_rahman Cpp 0.00s
11 prateepm Cpp14 0.00s
12 tariqiitju Cpp 0.00s
13 ikaadil Cpp 0.00s
14 Zeerin Cpp 0.00s
15 smriad Cpp14 0.00s
16 Morass Cpp14 0.00s
17 feodorv C 0.00s
18 Bruteforcekid Cpp 0.00s
19 abdulmukit Cpp 0.00s
20 ash12 Cpp14 0.00s
21 MAHRahat Cpp14 0.00s
22 mahmud2690 Cpp 0.01s
23 _dipu Cpp14 0.01s
24 mahbub07 Cpp14 0.01s
25 shawon100 Cpp 0.01s
26 emrul Cpp14 0.01s
27 rayhan50001 Cpp14 0.01s
28 Taj025 CSharp 0.02s
29 king_of_sun Cpp14 0.02s
30 masba Python 0.02s
31 rabbicse CSharp 0.03s
32 joy25896 Cpp14 0.03s
33 haasib Cpp14 0.07s
34 Ishrak Cpp14 0.08s
35 jahirtheboss Cpp14 0.09s
36 RandyWaterhouse Python3 0.15s
37 ImagineWarrior Cpp14 0.21s
38 bhagyo Cpp14 0.33s
39 mamun4122 Cpp14 0.36s
40 rajdipsaha Cpp14 0.39s
41 njrafi Cpp14 0.39s
42 sahedsohel Cpp14 0.47s
43 arsho Cpp14 0.48s
44 Mahmudul_Tushar Cpp14 0.48s
45 ssavi Cpp14 0.48s
46 rofi93 Cpp14 0.48s
47 anowar1112 Cpp14 0.48s
48 Ihtiaz Cpp14 0.49s
49 rafsan_rana Cpp14 0.49s
50 darkprinx Cpp14 0.49s
Feedback

Your feedback is our precious!



Or call +88 02 9853138 for support