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Merge pull request youngyangyang04#1171 from liumingzhuo/master

Update 0332.重新安排行程.md Go版本

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- 0332.重新安排行程.md

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`‎problems/0332.重新安排行程.md‎`

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`@@ -342,6 +342,64 @@ class Solution:`
`342`	`342`	`return path`
`343`	`343`	```
`344`	`344`
	`345`	`+### Go`
	`346`	+```go
	`347`	`+type pair struct {`
	`348`	`+ target string`
	`349`	`+ visited bool`
	`350`	`+}`
	`351`	`+type pairs []*pair`
	`352`	`+`
	`353`	`+func (p pairs) Len() int {`
	`354`	`+ return len(p)`
	`355`	`+}`
	`356`	`+func (p pairs) Swap(i, j int) {`
	`357`	`+ p[i], p[j] = p[j], p[i]`
	`358`	`+}`
	`359`	`+func (p pairs) Less(i, j int) bool {`
	`360`	`+ return p[i].target < p[j].target`
	`361`	`+}`
	`362`	`+`
	`363`	`+func findItinerary(tickets [][]string) []string {`
	`364`	`+ result := []string{}`
	`365`	`+ // map[出发机场] pair{目的地,是否被访问过}`
	`366`	`+ targets := make(map[string]pairs)`
	`367`	`+ for _, ticket := range tickets {`
	`368`	`+ if targets[ticket[0]] == nil {`
	`369`	`+ targets[ticket[0]] = make(pairs, 0)`
	`370`	`+ }`
	`371`	`+ targets[ticket[0]] = append(targets[ticket[0]], &pair{target: ticket[1], visited: false})`
	`372`	`+ }`
	`373`	`+ for k, _ := range targets {`
	`374`	`+ sort.Sort(targets[k])`
	`375`	`+ }`
	`376`	`+ result = append(result, "JFK")`
	`377`	`+ var backtracking func() bool`
	`378`	`+ backtracking = func() bool {`
	`379`	`+ if len(tickets)+1 == len(result) {`
	`380`	`+ return true`
	`381`	`+ }`
	`382`	`+ // 取出起飞航班对应的目的地`
	`383`	`+ for _, pair := range targets[result[len(result)-1]] {`
	`384`	`+ if pair.visited == false {`
	`385`	`+ result = append(result, pair.target)`
	`386`	`+ pair.visited = true`
	`387`	`+ if backtracking() {`
	`388`	`+ return true`
	`389`	`+ }`
	`390`	`+ result = result[:len(result)-1]`
	`391`	`+ pair.visited = false`
	`392`	`+ }`
	`393`	`+ }`
	`394`	`+ return false`
	`395`	`+ }`
	`396`	`+`
	`397`	`+ backtracking()`
	`398`	`+`
	`399`	`+ return result`
	`400`	`+}`
	`401`	+```
	`402`	`+`
`345`	`403`	`### C语言`
`346`	`404`
`347`	`405`	```C

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