Commit4f8a8e9

zhenyu zhang

committed

update 20、119、905 solutions

1 parent762e8a3 commit4f8a8e9Copy full SHA for 4f8a8e9

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Lines changed: 16 additions & 0 deletions

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	`1`	`+packagecom.hadley;`
	`2`	`+`
	`3`	`+importjava.util.ArrayList;`
	`4`	`+importjava.util.List;`
	`5`	`+`
	`6`	`+/*`
	`7`	`+2020.08.13`
	`8`	`+119、Pascal's Triangle II`
	`9`	`+ */`
	`10`	`+publicclass_119 {`
	`11`	`+`
	`12`	`+publicList<Integer>getRow(introwIndex) {`
	`13`	`+`
	`14`	`+returnnewArrayList<>();`
	`15`	`+ }`
	`16`	`+}`

Lines changed: 24 additions & 0 deletions

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	`1`	`+packagecom.hadley;`
	`2`	`+`
	`3`	`+/*`
	`4`	`+2020.08.22`
	`5`	`+905、Sort Array By Parity`
	`6`	`+ */`
	`7`	`+`
	`8`	`+publicclass_905 {`
	`9`	`+publicint[]sortArrayByParity(int[]A) {`
	`10`	`+int[]result =newint[A.length];`
	`11`	`+intstartIndex =0;`
	`12`	`+intendIndex =A.length -1;`
	`13`	`+for(inti =0;i <A.length;i++){`
	`14`	`+if(A[i] %2 ==0){`
	`15`	`+result[startIndex] =A[i];`
	`16`	`+startIndex ++;`
	`17`	`+ }else{`
	`18`	`+result[endIndex] =A[i];`
	`19`	`+endIndex --;`
	`20`	`+ }`
	`21`	`+ }`
	`22`	`+returnresult;`
	`23`	`+ }`
	`24`	`+}`

Lines changed: 41 additions & 0 deletions

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`@@ -0,0 +1,41 @@`
	`1`	`+packagecom.hadley.top100;`
	`2`	`+`
	`3`	`+/*`
	`4`	`+2020.08.13`
	`5`	`+20、Valid Parentheses`
	`6`	`+ */`
	`7`	`+`
	`8`	`+importjava.util.Stack;`
	`9`	`+`
	`10`	`+publicclass_020 {`
	`11`	`+publicbooleanisValid(Strings) {`
	`12`	`+Stack<Character>stack =newStack<>();`
	`13`	`+for(inti =0;i <s.length();i++){`
	`14`	`+if(stack.isEmpty()\|\|s.charAt(i) ==40\|\|s.charAt(i) ==91\|\|s.charAt(i) ==123) {`
	`15`	`+stack.push(s.charAt(i));`
	`16`	`+continue;`
	`17`	`+ }elseif(s.charAt(i) ==41){`
	`18`	`+if(stack.peek() ==40){`
	`19`	`+stack.pop();`
	`20`	`+ }else{`
	`21`	`+returnfalse;`
	`22`	`+ }`
	`23`	`+ }elseif(s.charAt(i) ==93){`
	`24`	`+if(stack.peek() ==91){`
	`25`	`+stack.pop();`
	`26`	`+ }else{`
	`27`	`+returnfalse;`
	`28`	`+ }`
	`29`	`+ }elseif(s.charAt(i) ==125){`
	`30`	`+if(stack.peek() ==123){`
	`31`	`+stack.pop();`
	`32`	`+ }else{`
	`33`	`+returnfalse;`
	`34`	`+ }`
	`35`	`+ }`
	`36`	`+`
	`37`	`+`
	`38`	`+ }`
	`39`	`+returnstack.empty();`
	`40`	`+ }`
	`41`	`+}`

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