This is a leetcode problem, I am getting correct answer for the unlocked test cases but when I submit, I get Runtime error, I don’t think I am able to find out the possible mistake, Please help me to find the mistake, so that I can avoid that in the future.
Problem Link : - LeetCode
class Solution {
public:
int lengthOfLongestSubstring(string s)
{
unordered_set<char> us;
int res = 1;
for(int i=0;i<s.length()-1;i++)
{
int j;
us.insert(s[i]);
for( j=i+1;j<s.length();j++)
{
if(us.find(s[j])!= us.end())
break;
us.insert(s[j]);
}
res = max(res, j-i);
us.clear();
}
return res;
}
};