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

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Problem Limits

Language Time Limit (seconds)
C/C++ 1.00
Java 2.00
C# 2.00
PHP 2.00

Problem Stats




# User Language Timing
01 ash12 Cpp 0.00s
02 mahrahat Cpp 0.00s
03 seyedssz Cpp 0.00s
04 sadia2427 Cpp 0.00s
05 7Mahfuz Cpp 0.00s
06 nazmul_bzs Cpp 0.00s
07 Dragon_162 Cpp 0.00s
08 nasir_32_15 Cpp 0.00s
09 smriad Cpp 0.00s
10 mahbub07 Cpp 0.01s
11 emrul Cpp 0.01s
12 rayhan50001 Cpp 0.01s
13 joy25896 Cpp 0.03s
14 haasib Cpp 0.07s
15 Ishrak Cpp 0.08s
16 jahirtheboss Cpp 0.09s
17 ImagineWarrior Cpp 0.21s
18 bhagyo Cpp 0.33s
19 mamun4122 Cpp 0.36s
20 rajdipsaha Cpp 0.39s
21 njrafi Cpp 0.39s
22 sahedsohel Cpp 0.47s
23 rofi93 Cpp 0.48s
24 ssavi Cpp 0.48s
25 arsho Cpp 0.48s
26 Mahmudul_Tushar Cpp 0.48s
27 anowar1112 Cpp 0.48s
28 murad_al_wajed Cpp 0.49s
29 faisalxn Cpp 0.49s
30 fsshakkhor Cpp 0.49s
31 sayedgkm Cpp 0.49s
32 darkprinx Cpp 0.49s
33 Ihtiaz Cpp 0.49s
34 rafsan_rana Cpp 0.49s
35 habib_rahman Cpp 0.49s
36 math10 Cpp 0.50s
37 rony_ghost Cpp 0.50s
38 codehead Cpp 0.50s
39 smjlord068 Cpp 0.50s
40 shivazi Cpp 0.52s
41 ProKawsar Cpp 0.56s

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