ALL test cases not working

#1
#2

hello @dhruv.mahajan.mait

in the question they have asked to avoid leading 0s.

for example->
for input 999, output should be 900 (we cant convert 1st 9 to 0 becuase that will produce leading zero)

but urs code will print 0

#3

read a number as string (say s) .
if left most character is ‘9’

  • then leave the leftmost character as it is and for other characters simpl replace s[i] with min(s[i],‘9’-s[i])

else:

  • for each i replace s[i] with min(s[i],‘9’-s[i])

print s

#include<bits/stdc++.h>

using namespace std;

int main() {

    string n;

    cin>>n;

    int start=0;

    if(n[0]=='9')

       start=1;

    for(int i=start;i<n.length();i++){

            char c='9'-n[i]+'0';

            n[i]=min(n[i],c );

    }

    cout<<n;

    return 0;

}
#4

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