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function solution(p) {
let answer = calcBracket(p);
return answer;
}
function calcBracket(str){
let obj = splitStr(str);
let returnStr = '';
if(obj.u === '' && obj.v === ''){
return '';
}
if(checkCorrectBracket(obj.u)){
returnStr += obj.u;
returnStr += calcBracket(obj.v);
}else{
returnStr += '(' + calcBracket(obj.v) + ')';
returnStr += makeCorrectStr(obj.u);
}
return returnStr;
}
function splitStr(p){
let returnObj = {
u: '',
v: ''
};
let openBracketCnt = 0;
let closeBracketCnt = 0;
if(p === ''){
return {
u: '',
v: ''
}
}
for(let i = 0, len = p.length; i < len; i++){
let bracket = p.charAt(i);
returnObj.u += bracket;
if(bracket === '('){
openBracketCnt++;
}else{
closeBracketCnt++;
}
if(openBracketCnt === closeBracketCnt){
if(i === len - 1){
returnObj.v = '';
}else{
returnObj.v = p.substring(i + 1);
}
break;
}
}
return returnObj;
}
function checkCorrectBracket(str){
if(str.length === 0){
return '';
}
let openBracketCnt = 0;
let closeBracketCnt = 0;
for(let i = 0, len = str.length; i < len; i++){
let bracket = str.charAt(i);
if(bracket === '('){
openBracketCnt++;
}else{
closeBracketCnt++;
if(closeBracketCnt > openBracketCnt){
return false;
}
}
}
if(openBracketCnt !== closeBracketCnt){
return false;
}else{
return true;
}
}
function makeCorrectStr(str){
if(str.length > 1){
str = str.substring(1);
str = str.substring(0, str.length - 1);
console.log(str);
str = str.replace(/\(/gi, "*");
str = str.replace(/\)/gi, "(");
str = str.replace(/\*/gi, ")");
console.log(str);
}else {
return '';
}
return str;
}
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cs |
단순 재귀를 이용하여 처리
문제에서 시키는대로 코드를짜서 해결
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