Erase letters via substring..?

[crappyprogrammer]

Hi,

Like many who post here, I am new and quite crappy with c++. I have to perform a ratio for my homework. Essentially, if someone plugs in "4 shoes" and "8 Laces," my final ratio/output should say "shoe-to-lace ratio .5" i.e., "shoes" has to become "shoe," no s. Here is my current code, but I don't know crap about substrings:

#include<iostream>
#include<string>

using namespace std;

int main() {



double first_category;
double second_category;
string category_1;
string category_2;

/*345678901234567890123456789012345678901234567890*/


cout << "How many in the first category? ";
cin >> first_category >> category_1;
cout << "How many in the second category? ";
cin >> second_category >> category_2;
cout << "\n ";

cout << " " << category_1 << " " << first_category << endl;
cout << " " << category_2 << " " << second_category << endl;
cout << category_1 << "-to-" << category_2 << " ratio " << first_category / second_category << endl;
cout << category_2 << "-to-" << category_1 << " ratio " << second_category / first_category;
cout << "\n\n";




system("pause");

return 0;

}

[JLBorges]

> if someone plugs in "4 shoes" and "8 Laces,"
> my final ratio/output should say "shoe-to-lace ratio .5" i.e., "shoes" has to become "shoe," no s.

What should your output say if someone plugs in "26 alumni" and "5 seminaries"?