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722.java
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722.java
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__________________________________________________________________________________________________
sample 0 ms submission
class Solution {
public List<String> removeComments(String[] source) {
boolean open = false;
List<String> res = new ArrayList<>();
StringBuilder sb = new StringBuilder();
for(int i=0; i<source.length; i++){
for(int j=0; j<source[i].length(); j++){
if(!open){
if(j+1<source[i].length() && source[i].charAt(j)=='/' &&
(source[i].charAt(j+1)=='/'|| source[i].charAt(j+1)=='*')){
if(source[i].charAt(j+1)=='/'){
if(sb.length()>0){
res.add(sb.toString());
sb = new StringBuilder();
}
break;
}else{
open = true;
j++;
}
}else{
//add to current string builder
sb.append(source[i].charAt(j));
}
}else{
//find close condition and close the comment
if(j+1<source[i].length() && source[i].charAt(j)=='*' && source[i].charAt(j+1)=='/'){
open = false;
j++;
}
}
if(!open && j==source[i].length()-1 && sb.length()!=0){
res.add(sb.toString());
sb = new StringBuilder();
}
}
}
return res;
}
}
__________________________________________________________________________________________________
sample 36972 kb submission
class Solution {
public List<String> removeComments(String[] source) {
boolean inBlock = false;
StringBuilder newline = new StringBuilder();
List<String> res = new ArrayList();
for (String line: source) {
int i = 0;
char[] chars = line.toCharArray();
if (!inBlock) {
newline = new StringBuilder();
}
while (i < line.length()) {
if (!inBlock && i+1 < line.length() && chars[i] == '/' && chars[i+1] == '*') {
inBlock = true;
i++;
} else if (inBlock && i+1 < line.length() && chars[i] == '*' && chars[i+1] == '/') {
inBlock = false;
i++;
} else if (!inBlock && i+1 < line.length() && chars[i] == '/' && chars[i+1] == '/') {
break;
} else if (!inBlock) {
newline.append(chars[i]);
}
i++;
}
if (!inBlock && newline.length() > 0) {
res.add(new String(newline));
}
}
return res;
}
}
__________________________________________________________________________________________________