[Algorithm] 삼총사

[hwangJi-dev]

💬 문제

https://school.programmers.co.kr/learn/courses/30/lessons/131705

💬 풀이

func solution(_ number:[Int]) -> Int {
 var result = 0
 
 for i in 0..<number.count {
 for j in i+1..<number.count {
 for k in j+1..<number.count {
 if number[i] + number[j] + number[k] == 0 {
 result += 1
 }
 }
 }
 }
 
 return result
}