C - Median Sum
E - Avoiding Collision
Codeforces Beta Round 89 (Div. 2) D. Caesar’s Legions
Codeforces Beta Round 93 (Div. 1 Only) B. Password
Codeforces Beta Round 95 (Div. 2) E. Yet Another Task with Queens
Codeforces Round 100 A. New Year Table
Codeforces Round 105 (Div. 2) C. Terse princess
Bounding Box
Build Correct Brackets
BFS-DFS