Whats wrong in my code

#1

string a;
getline(cin,a);
int len=a.length();
vector b;
for(int i=0;i<len;i++)
{
int j;
for(j=0;j<i;j++)
{
if(a[i]==a[j])
break;
}
if(i==j)
{
// cout<<a[i]<<" “;
b.push_back(a[i]);
}
}
for(int i=0;i<b.size();i++)
{
// cout<<b[i]<<” “;
}
int c[b.size()];
for(int i=0;i<b.size();i++)
{
int m=0;
for(int j=0;j<a.length();j++)
{
if(a[j]==b[i])
m++;
}
// cout<<“i:”<<i<<”—>"<<m<<endl;
c[i]=m;
}
int n=sizeof©/sizeof(int);
//cout<<“n:”<<n<<endl;
//cout<<"c: “<<endl;
//for(int i=0;i<n;i++)
//{
// cout<<c[i]<<” ";
//}
int max=c[0];
for(int i=1;i<n;i++)
{
if(c[i]>max)
{
max=c[i];
}
}
int i;
for(i=0;i<n;i++)
{
if(c[i]==max)
break;
}
cout<<b[i];

#2

hello @manseerat ,
please share ur code using coding blocks ide.

#3

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