# And a2oj Ladder 4 some problems
Ladder URL:
http://a2oj.com/Ladder.jsp?ID=4
Difficulty Level: 2
1- 4A. Watermelon:
http://codeforces.com/problemset/problem/4/A
2- 71A. Way Too Long Words:
http://codeforces.com/problemset/problem/71/A
3- 118A. String Task:
http://codeforces.com/problemset/problem/118/A
4- 112. Petya and Strings:
http://codeforces.com/problemset/problem/112/A
5- 339A. Helpful Maths:
http://codeforces.com/problemset/problem/339/A
6- 160A. Twins:
http://codeforces.com/problemset/problem/160/A
7- 58A. Chat room:
http://codeforces.com/problemset/problem/58/A
8- 122A. Lucky Division:
http://codeforces.com/problemset/problem/122/A
9- 136A. Presents:
http://codeforces.com/problemset/problem/136/A
10- 263A. Beautiful Matrix:
http://codeforces.com/problemset/problem/263/A
11- 144A. Arrival of the General:
http://codeforces.com/problemset/problem/144/A
12- 451A. Game With Sticks:
http://codeforces.com/problemset/problem/451/A
13- 268A. Games:
http://codeforces.com/problemset/problem/268/A
14- 208A. Dubstep:
http://codeforces.com/problemset/problem/208/A
15- 69A. Young Physicist:
http://codeforces.com/problemset/problem/69/A
16- 337A. Puzzles:
http://codeforces.com/problemset/problem/337/A
17- 479A. Expression:
http://codeforces.com/problemset/problem/479/A
18- 443A. Anton and Letters:
http://codeforces.com/problemset/problem/443/A
19- 469A. I Wanna Be the Guy:
http://codeforces.com/problemset/problem/469/A
20- 1A. Theatre Square:
http://codeforces.com/problemset/problem/1/A
21- 168A. Wizards And Demonstration:
http://codeforces.com/problemset/problem/168/A
22- 427A. Police Recruits:
http://codeforces.com/problemset/problem/427/A
23- 602A. Two Bases:
http://codeforces.com/problemset/problem/602/A
24- 318A. Even Odds:
http://codeforces.com/problemset/problem/318/A
25- 466A. Cheap Travel:
http://codeforces.com/problemset/problem/466/A
26- 604A. Uncowed Forces:
http://codeforces.com/problemset/problem/604/A
27- 600A. Extract Numbers:
http://codeforces.com/problemset/problem/600/A
28- 599A. Patrick and Shopping:
http://codeforces.com/problemset/problem/599/A
29- 313A. Ilya and Bank Account:
http://codeforces.com/problemset/problem/313/A
30- 230A. Dragons:
http://codeforces.com/problemset/problem/230/A
31- 510A. Fox And Snake:
http://codeforces.com/problemset/problem/510/A
32- 490A. TeamOlympiad:
http://codeforces.com/problemset/problem/490/A
33- 432A. Choosing Teams:
http://codeforces.com/problemset/problem/432/A
34- 25A. IQ test:
http://codeforces.com/problemset/problem/25/A
35- 330A. Cakeminator:
http://codeforces.com/problemset/problem/330/A
36- 439A. Devu, the Singer and Churu, the Joker:
http://codeforces.com/problemset/problem/439/A
37- 459A. Pashmak and Garden:
http://codeforces.com/problemset/problem/459/A
38- 476A. Dreamoon and Stairs:
http://codeforces.com/problemset/problem/476/A
39- 441A. Valera and Antique Items:
http://codeforces.com/problemset/problem/441/A
40- 462A. Appleman and Easy Task:
http://codeforces.com/problemset/problem/462/A
41- 385A. Bear and Raspberry:
http://codeforces.com/problemset/problem/385/A
42- 276A. Lunch Rush:
http://codeforces.com/problemset/problem/276/A
43- 456A. Laptops:
http://codeforces.com/problemset/problem/456/A
44- 151A. Soft Drinking:
http://codeforces.com/problemset/problem/151/A
45- 255A. Greg's Workout:
http://codeforces.com/problemset/problem/255/A
46- 378A. Playing With Dice:
http://codeforces.com/problemset/problem/378/A
47- 496A. Minimum Difficulty:
http://codeforces.com/problemset/problem/496/A
48- 152A. Marks:
http://codeforces.com/problemset/problem/152/A
49- 165A. Super central Point:
http://codeforces.com/problemset/problem/165/A
50- 233A. Perfect Permutation:
http://codeforces.com/problemset/problem/233/A
51- 262A. Roma and Lucky Numbers:
http://codeforces.com/problemset/problem/262/A
52- 265A. Colorful Stones (Simplified Edition):
http://codeforces.com/problemset/problem/265/A
53- 350A. TL:
http://codeforces.com/problemset/problem/350/A
54- 353A. Domino:
http://codeforces.com/problemset/problem/353/A
55- 404A. Valera and X:
http://codeforces.com/problemset/problem/404/A
56- 483A. Counter example:
http://codeforces.com/problemset/problem/483/A
57- 499A. Watching a Movie:
http://codeforces.com/problemset/problem/499/A
58- 501A. Contest:
http://codeforces.com/problemset/problem/501/A
59- 114A. Cifera:
http://codeforces.com/problemset/problem/114/A
60- 300A. Array:
http://codeforces.com/problemset/problem/300/A
61- 389A. Fox and Number Game:
http://codeforces.com/problemset/problem/389/A
62- 488A. Giga Tower:
http://codeforces.com/problemset/problem/488/A
63- 224A. Parallelepiped:
http://codeforces.com/problemset/problem/224/A
64- 45A. Football:
http://codeforces.com/problemset/problem/45/A
65- 445A. DZY Loves Chessboard:
http://codeforces.com/problemset/problem/445/A
66- 75A. Life without Zeros:
http://codeforces.com/problemset/problem/75/A
67- 296A. Yaroslav and Permutations:
http://codeforces.com/problemset/problem/296/A
68- 355A. Vasya and Digital Root:
http://codeforces.com/problemset/problem/355/A
69- 361A. Levko and Table:
http://codeforces.com/problemset/problem/361/A
70- 373A. Collecting Beats is Fun:
http://codeforces.com/problemset/problem/373/A
71- 239A. Two Bags of Potatoes:
http://codeforces.com/problemset/problem/239/A
72- 437A. The Child and Homework:
http://codeforces.com/problemset/problem/437/A
73- 363A. Soroban:
http://codeforces.com/problemset/problem/363/A
74- 376A. Lever:
http://codeforces.com/problemset/problem/376/A
75- 408A. Line to Cashier:
http://codeforces.com/problemset/problem/408/A
76- 359A. Table:
http://codeforces.com/problemset/problem/359/A
77- 302A. Eugeny and Array:
http://codeforces.com/problemset/problem/302/A
78- 609A. USB Flash Drives:
http://codeforces.com/problemset/problem/609/A