Question

This is C++ I only can change the lines highlighted in white (i can add lines to it with enter though)

Set hasDigit to true if the 3-character passCode contains a digit. 1 #include <iostream» 2 #include <string> 3 #include <cctype> 4 using namespace std; 6 int main 7 bool hasDigit; 8 string passCode; 10 hasDigit false; 11 cin passCode; 12 13 Your solution goes here 14 15 if ChasDigit) 16 cout << "Has a digit." < endl; 17 18 else cout s "Has no diait endl:

Answer 1

Hi,

As you say you can only change the highlighted line. I will take a precaution that length of paaCode must be greater than 3.

I am trying to explain in comments but stil if you not understand feel free to ask in comments.

So here is your modified code:-

#include<iostream>
#include<string>
#include<cctype>
using namespace std;
int main()
{
   bool hasDigit;
   string passCode;
  
   hasDigit = false;
   cin>>passCode;
  
   // My solution Start
   int length = passCode.length();   //get length of string
   for(int i=0;i<length;i++)
   {
       int digit = passCode[i]-'0';   //its a trick to convert a character to number
       if(digit>=0 && digit <10)   //since digit is between 0 to 9
       {
           hasDigit = true;
       }
   }
  
  
   //Mysolution Ends
   if(hasDigit)
   {
       cout<<"Has a digit."<<endl;
   }
   else
   {
       cout<< "Has no digit."<<endl;
   }
   return 0;
}

Here is how output appears:

Best of luck for your future...