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이지영: [PG] 42884 단속카메라_241115

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	`1`	`+import java.util.*;`
	`2`	`+`
	`3`	`+class Solution {`
	`4`	`+ public int solution(int[][] routes) {`
	`5`	`+ int answer = 0;`
	`6`	`+`
	`7`	`+ Arrays.sort(routes, (o1, o2)->o1[1]-o2[1]);`
	`8`	`+`
	`9`	`+ int last = -30001;`
	`10`	`+ for(int [] route: routes) {`
	`11`	`+ if(route[0] > last) {`
	`12`	`+ answer++;`
	`13`	`+ last = route[1];`
	`14`	`+ }`
	`15`	`+ }`
	`16`	`+`
	`17`	`+ return answer;`
	`18`	`+ }`
	`19`	`+}`

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