Count Unhappy Friends SOLUTION LEETCODE

Count Unhappy Friends SOLUTION

You are given top notch of inclinations for n companions, where n is in every case even. 

For every individual I, preferences[i] contains a rundown of companions arranged in the request for inclination. At the end of the day, a companion prior in the rundown is more favored than a companion later in the rundown. Companions in each rundown are signified by whole numbers from 0 to n-1. 

All the companions are partitioned into sets. The pairings are given in a rundown sets, where pairs[i] = [xi, yi] signifies xi is combined with yi and yi is matched with xi. 

Nonetheless, this blending may make a portion of the companions be miserable. A companion x is troubled if x is combined with y and there exists a companion u who is matched with v however: 

 

x lean towards u over y, and 

u lean towards x over v. 

Return the quantity of miserable companions. 

 

Model 1: 

Info: n = 4, inclinations = [[1, 2, 3], [3, 2, 0], [3, 1, 0], [1, 2, 0]], sets = [[0, 1], [2, 3]] 

 

Yield: 2 

 

Clarification: 

Companion 1 is despondent in light of the fact that: 

– 1 is combined with 0 yet favors 3 more than 0, and 

– 3 favors 1 more than 2. 

 

Companion 3 is despondent on the grounds that: 

– 3 is combined with 2 yet favors 1 more than 2, and 

– 1 favors 3 more than 0. 

Companions 0 and 2 are upbeat. 

 

Model 2: 

Information: n = 2, inclinations = [[1], [0]], sets = [[1, 0]] 

 

Yield: 0

Clarification: Both companions 0 and 1 are upbeat. 

 

Model 3: 

Information: n = 4, inclinations = [[1, 3, 2], [2, 3, 0], [1, 3, 0], [0, 2, 1]], sets = [[1, 3], [0, 2]] 

 

Yield: 4 

 

Imperatives: 

2 <= n <= 500 

n is even. 

preferences.length == n 

preferences[i].length == n – 1 

0 <= preferences[i][j] <= n – 1 

preferences[i] doesn’t contain I. 

 

All qualities in preferences[i] are novel. 

pairs.length == n/2 

pairs[i].length == 2 

xi != yi 

0 <= xi, yi <= n – 1 

Every individual is contained in precisely one sets.

SOLUTION DOWNLOAD

March Long Challenge 2021 Solutions

April Long Challenge 2021 Solutions

Codechef Long Challenge Solutions

February Long Challenge 2021

1. Frog Sort Solution Codechef

2. Chef and Meetings Solution Codechef

3. Maximise Function Solution Codechef

4. Highest Divisor Solution Codechef

5. Cut the Cake Challenge Solution Codechef

6. Dream and the Multiverse Solution Codechef

7. Cell Shell Solution Codechef

8. Multiple Games Solution Codechef

9. Another Tree with Number Theory Solution Codechef

10. XOR Sums Solution Codechef

11. Prime Game Solution CodeChef

12. Team Name Solution Codechef

January Long Challenge 2021

November Challenge 2020 SOLUTION CodeChef

October Lunchtime 2020 CodeChef SOLUTIONS

RELATED :

Related :

Related :

3 thoughts on “Count Unhappy Friends SOLUTION LEETCODE”

Leave a Comment

close
error: Content is protected !!