class Solution {
public:
string removeOuterParentheses(string s)
{
int n=s.size();
int j=0;
string p="";
for(int i=0;i<n;i++)
{
if(s[i]==41)
{
j--;
}
if(j!=0)
{
p+=s[i];
}
if(s[i]==40)
{
j++;
}
}
return p;
}
};
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