Im not able to print with this serial no "318-356-082" with below code.Please can any one tell this Answer where I did the mista

Question

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#include<iostream>
#include<algorithm>
using namespace std;
int main()
{
// Comparing ASCII values of a and b
cout << "Hi" <<std::max(0,2) << "\n";
std::string device;
bool filter= true;
device = "V240m B-FF 318-356-082";
if((filter == true) && !device.empty())
{
const char snLength = 11 ; // xxx-xxx-xxx
char sn[1 + snLength] = { 0 };
cout<< device <<endl;
const char* const snFormat = "%3u-%3u-%3d";
int b1, b2, b3;
for(int i = 0; i <= std::max(0, (int)device.size() - snLength); i++)
{
if(!isdigit(device[i]))
continue;
if( sscanf( device.substr(i, snLength).c_str(), snFormat, &b1, &b2, &b3) < 3) continue;
sprintf(sn, snFormat, b1, b2, b3);
device= sn;
cout<< device <<endl;
break;
}
//if(!sn[0]) continue;
}
else
{
cout<<"Faile"<<endl;
}
// Returns the first one if both the numbers
// are same
// cout << std::max(7,7);
return 0;
}

Answer 1

Can you explain what the program was supposed to do?
And I suggest to share a saved code link instead of raw text like this. Code links makes analysis bit easier to do, no need for copy/paste over and over. Follow the below guide to share link 👇
https://www.sololearn.com/post/75089/?ref=app