walmart ultraviolet

Ultraviolet A 12096, ora12096 Link: Ultraviolet A 12096-The SetStack Computer Five operations are available for one stack; PUSH: place an empty set into the stack. DUP: replica stack top set. UNION: Take the two sets at the top of the stack, take the UNION set, and put it back. INTERSECT: Take the two sets at the top of the stack, take the intersection and put it back. ADD: Take the top two sets of th

Ultraviolet A 10943-how do you add? (Combination number formula + recurrence) Question:Given a number N, the number of shard K is decomposed, and the number of combinations can be repeated (n Analysis:Abstract The question into N identical balls by combining mathematics, put them into k different boxes, and allow the box to be empty.Then we can use the partition method ------> ans = C (n + M-1, M-1)Partition Method --> BDAnd then according to the

[l] + 1 Because both the left and right sections are in the same segment, the Max number of elements is enough. The middle section is a mix of multiple complete segments, which can be directly st. Note that St initializes the segment capacity. # Include "cstdio" # include "cstring" # include "iostream" using namespace STD; # define maxn 100000 # define maxp 20int rmq [maxn] [maxp], n, Q, w, L, R, code [maxn], num [maxn], LB [maxn], Rb [maxn]; Template 2809497 Neopenx

Link: Ultraviolet A 10671-grid speed N indicates that in an N * n grid, the length of each line is L. Now the speed limit of H and V is given, and the starting position is Sx, Sy, termination position ex, ey, time range St, ET, the car only takes the shortest short circuit, ask the time and fuel consumption in the case of the fastest arrival within the range and the smallest fuel consumption. Solution: DP [x] [y] [T] indicates at the point of X and Y.

Subject address: Ultraviolet A 120 Question. Shift from the largest start, and each time the big one is first moved to the top and then to the bottom. The Code is as follows: #include (White Book Training Program) ultraviolet A 120 stacks of flapjacks (constructor)

Subject address: Ultraviolet A 11572 This method has been used before. It defines two pointers and continuously slides from left to right to determine whether the pointer meets the requirements. In order to quickly determine whether this number exists, set in STL can be used. The Code is as follows: #include (White Book Training Program) ultraviolet (11572 unique snowflakes)

Ultraviolet A 1391-astronauts Question Link Given some astronauts who are younger than the average age can do both A and C, and are greater than or equal to B and C, they now know that some astronauts hate each other and cannot perform the same task, always try to meet the conditions Train of Thought: 2set problem. If the two astronauts are of the same type, the two astronauts will do the same, adding a real or real side and a fake side. If the type i

Ultraviolet A 12167-proving equivalences Question Link Meaning: given some existing proof of equivalence, it is required to be all equal. It must be proved at least several times. Idea: first obtain the strongly connected component, and then scale down the vertex. On the scaled-down graph, calculate the maximum value of the inbound and outbound degrees of 0 nodes, that is, the number of edges to be added, note that if the entire graph is already stron

Link: Ultraviolet A 11983-weird Advertisement Given n rectangles, I would like to ask how many areas are covered more than K times. Solution: divide each rectangle into two line segments, one for adding overwrite value 1, the other for reducing overwrite value 1, and record the height (abscissa) of the two segments at the same time ). Create a line segment tree for discretization of the ordinate coordinates, and sort the line segments by height. Maint

Ultraviolet A 12096-The SetStack Computer (STL)Ultraviolet A 12096-The SetStack Computer Question Link A few operations: push is to add an empty set to the top of the stack, dup is to copy the set at the top of the stack, and union is to take the first two and put them back, int Is the first two to take the intersection back, add is to take the first two, the first as a set to add the second, each operation

Ultraviolet A 501-Black Box (priority queue)Ultraviolet A 501-Black Box Question Link Given some operations, add a number each time, and then output the current number smaller than I during the I-th query. Idea: using two priority queues is equivalent to dividing the sequence into two sequences. The answer for each query is the header of the next queue. Code: #include #include #include

Ultraviolet A 11317-GCD + LCM (Euler's Function + log) Link to the question: Ultraviolet A 11317-GCD + LCM Given n, find 1 ~ The product GCD of the greatest convention in n and the product LCM of the least common multiple are the digits in the decimal system. Solution: in the case of n, phi [n/I] times for the case where the maximum public approx. Is I. Calculate LCM and divide the product by GCD. #include

Ultraviolet A 1232-SKYLINE (line segment tree)Ultraviolet A 1232-SKYLINE Question Link Build a house in sequence. On a line segment, each house has a height and requires a contour line after each house is built. Train of Thought: The line segment tree is updated in a delayed manner. A setv is used as the height lazy mark. In addition, you must open a cover to indicate whether the current node is at the same

Ultraviolet A 11021-Tribles (probability) Question connection: Ultraviolet A 11021-Tribles K of them are only poll, each of which only lives for one day. before death, some new poll may be generated. The probability of I being born is P. Given m, calculate the probability that all the balls will die after m days. Solution: the probability of death of a ball after m days is f (m). From the full probability f

Ultraviolet A 531 Compromise (longest common subsequence)Ultraviolet A 531 Compromise In a few months the European Currency Union will become a reality. however, to join the club, the Maastricht criteria must be fulfilled, and this is not a trivial task for the countries (maybe failed t for Luxembourg ). to enforce that Germany will fulfill the criteria, our government has so far wonderful options (raise ta

Ultraviolet A 507 Jill Rides Again (DP)Ultraviolet A 507 Jill Rides Again Jill likes to ride her bicycle, but since the pretty city of Greenhills where she lives has grown, Jill often uses the excellent public bus system for part of her journey. she has a folding bicycle which she carries with her when she uses the bus for the first part of her trip. when the bus reaches some pleasant part of the city, Ji

Ultraviolet A 12096-The SetStack Computer (STL) Link: Ultraviolet A 12096-The SetStack Computer Five operations are available for one stack; PUSH: place an empty set into the stack. DUP: replica stack top set. UNION: Take the two sets at the top of the stack, take the UNION set, and put it back. INTERSECT: Take the two sets at the top of the stack, take the intersection and put it back. ADD: Take the

Ultraviolet A 1356-Bridge (points + points) Link to the question: Ultraviolet A 1356-Bridge A number of towers are built on a bridge with a length of B. The distance between the towers cannot exceed D, the height of the tower is H, and the ropes between the towers form a fully equal parabolic curve. The total length of the rope is L. Ask the shortest section of the rope to exit the height of the ground when

Ultraviolet A 1549-Lattice Point (violent) Link to the question: Ultraviolet A 1549-Lattice Point Given the circle radius and centered on the origin, calculate the number of Integer Points in the garden. Solution: first, the coordinate axis divides the circle into four parts. Therefore, you only need to consider the number of each piece multiplied by 4 plus 1 (origin) # Include # Include

Ultraviolet A 10655-Contemplation! Algebra (matrix fast power) Question connection: Ultraviolet A 10655-Contemplation! Algebra Enter a non-negative integer, p, q, n, and evaluate the value of an + bn. Where a and B meet the requirements of a + B = p, AB = q, note that a and B are not necessarily real numbers. Solution: If f (n) = an + bn is defined, then f (n )? (A + B) = (an + bn )? (A + B) = an + 1 + abn