### Problems by ovis96

 Circle MysteryHere, \$A\$ is the center of the circle and \$BCD\$ is a tangent which intersects with the circle at th... Moderate 96/105/118 Game of Guessing Her Password!This is an interactive problem. Like everyone, Nubu the random coder girl, has a secret password. On... Moderate 34/60/352 Holy TreeWhat is a tree? A tree is a bidirectional connected graph with no cycle. In a tree, we can create ... Moderate 24/41/140 Meena, Raju and Mango TreeClever girl Meena likes to climb trees. One day her brother Raju, after coming back from school, sai... Very Easy 9/14/60 Meena Raju and Two TreesMeena's father gifted Meena and Raju two trees. Since they may quarrel, these two trees are exactly ... Moderate 3/7/42 Mr Makor And His FriendsMr Makor has a set S of n integers. He calls a sequence of length k special if every element of the ... Moderate 21/23/59 Reduce Articulation PointGiven a tree. Tree is an undirected connected acyclic graph. Wiki You should add exactly one edge t... Easy 3/30/75 Restore Magic RectangleRandom coder boy Kiny once had a rectangle (2D grid) as quarantine gift. Every random people have so... Moderate 5/16/38 Subarray PyramidAn integer sequence \$b_1, b_2, \ldots, b_m\$ is a pyramid if it satisfies the following conditions: ... Moderate 46/63/219 Trina Loves MangoesTrina loves mangoes. And she is a valuable member of the famous Mango Eaters Community. This communi... Very Easy 8/13/57