https://hack.codingblocks.com/contests/c/123/62
Please tell me what is error in my solution
#include
using namespace std;
int main() {
char number[20];
cin>>number;
for(int i=0;number[i]!='\0';i++){
if(number[i]=='9' && i==0)
i++;
if(number[i]>='5'&&number[i]<='9'){
number[i]='9' - number[i];
}
}
cout<<number<<endl;
return 0;
}