Longest length substring with unique char

#1

please check the error in my code it is not giving correct output for this question.
Question link :: https://practice.geeksforgeeks.org/problems/length-of-the-longest-substring/0
Code link :: https://ide.codingblocks.com/s/106084

#2

u r checking only one time
u have to check substring starting from each character ur
are only cheking for only certain character
make a loop
for(int i=0;i<string size;i++)
{
for(int j=i;j<string size;j++{
now here make all substring and check for there unqiue elemnet and find the max one

#3

sir but in one loop also all the possible SUBSTRING will be included ??? the way in which i am doing all the possible subarray will get included !

#4

how u can consider all possible substring in one loop
if string is abc
then
sub string are
a
ab
abc
b
bc
c
how can this all be consider in one loop