First Fit Room - Amazon Top Interview Questions


Problem Statement :


You are given a list of integers rooms and an integer target. Return the first integer in rooms that's target or larger. If there is no solution, return -1.

Constraints

0 ≤ n ≤ 100,000 where n is the length of rooms

Example 1

Input

rooms = [15, 10, 30, 50, 25]
target = 20

Output

30

Explanation

30 is the first room that's at least as large as 20.


Example 2

Input

rooms = [15, 10, 30, 50, 25]
target = 51


Output

-1

Explanation
There's no room that's at least 51.


Solution :



title-img 




                        Solution in C++ :

int solve(vector<int>& rooms, int target) {
    auto it = find_if(rooms.begin(), rooms.end(), [&](int value) { return value >= target; });
    return it == rooms.end() ? -1 : *it;
}
                    


                        Solution in Java :

import java.util.*;

class Solution {
    public int solve(int[] rooms, int target) {
        for (int r : rooms) {
            if (r >= target)
                return r;
        }
        return -1;
    }
}
                    


                        Solution in Python : 
                            
class Solution:
    def solve(self, rooms, target):
        return next((x for x in rooms if x >= target), -1)


View More Similar Problems

Pair Sums

Given an array, we define its value to be the value obtained by following these instructions: Write down all pairs of numbers from this array. Compute the product of each pair. Find the sum of all the products. For example, for a given array, for a given array [7,2 ,-1 ,2 ] Note that ( 7 , 2 ) is listed twice, one for each occurrence of 2. Given an array of integers, find the largest v

View Solution →

Lazy White Falcon

White Falcon just solved the data structure problem below using heavy-light decomposition. Can you help her find a new solution that doesn't require implementing any fancy techniques? There are 2 types of query operations that can be performed on a tree: 1 u x: Assign x as the value of node u. 2 u v: Print the sum of the node values in the unique path from node u to node v. Given a tree wi

View Solution →

Ticket to Ride

Simon received the board game Ticket to Ride as a birthday present. After playing it with his friends, he decides to come up with a strategy for the game. There are n cities on the map and n - 1 road plans. Each road plan consists of the following: Two cities which can be directly connected by a road. The length of the proposed road. The entire road plan is designed in such a way that if o

View Solution →

Heavy Light White Falcon

Our lazy white falcon finally decided to learn heavy-light decomposition. Her teacher gave an assignment for her to practice this new technique. Please help her by solving this problem. You are given a tree with N nodes and each node's value is initially 0. The problem asks you to operate the following two types of queries: "1 u x" assign x to the value of the node . "2 u v" print the maxim

View Solution →

Number Game on a Tree

Andy and Lily love playing games with numbers and trees. Today they have a tree consisting of n nodes and n -1 edges. Each edge i has an integer weight, wi. Before the game starts, Andy chooses an unordered pair of distinct nodes, ( u , v ), and uses all the edge weights present on the unique path from node u to node v to construct a list of numbers. For example, in the diagram below, Andy

View Solution →

Heavy Light 2 White Falcon

White Falcon was amazed by what she can do with heavy-light decomposition on trees. As a resut, she wants to improve her expertise on heavy-light decomposition. Her teacher gave her an another assignment which requires path updates. As always, White Falcon needs your help with the assignment. You are given a tree with N nodes and each node's value Vi is initially 0. Let's denote the path fr

View Solution →