cpp-notes.txt

cpp-notes.txt

# parse input

#include <sstream>
#include <vector>
#include <iostream>
using namespace std;

vector<int> parseInts(string str) {
    vector<int> *result = new vector<int>();
    stringstream ss(str);
    char ch;
    int value;
    
    while (! ss.eof()) {
        ss >> value >> ch;
        result->push_back(value);
    }
    
    return *result;
}

int main() {
    string str;
    cin >> str;
    vector<int> integers = parseInts(str);
    for(int i = 0; i < integers.size(); i++) {
        cout << integers[i] << "\n";
    }
    
    return 0;
}

#
# String processing
#
#include <iostream>
#include <string>
using namespace std;

int main() {
    string a;
    string b;

	cin >> a;
    cin >> b;
  
    int lena = a.size();
    int lenb = b.size();
    string ab = a + b;
    string aprime = b[0] + a.substr(1, lena-1);
    string bprime = a[0] + b.substr(1, lenb-1);
    
    cout << lena << ' ' << lenb << std::endl;
    cout << ab << std::endl;
    cout << aprime << ' ' << bprime << std::endl; 
    
    return 0;
}

class Box {
    int l;
    int b;
    int h;
    
public:

    Box() {
        l = b = h = 0; 
    }
    
    Box(int linput, int binput, int hinput) {
        l = linput;
        b = binput;
        h = hinput;
    }
    
    Box(Box &bxinput) {
        l = bxinput.l;
        b = bxinput.b;
        h = bxinput.h;
    }

    int getLength() {
        return l;
    }

    int getBreadth () {
        return b;
    }
    
    int getHeight () {
        return h;
    }
    
    long long CalculateVolume() {
        return static_cast<long long>(l)*b*h;
    }

    //Overload operator < as specified
    bool operator<(Box& b) {
        bool result = 
            this->l < b.l ||
            (this->b < b.b && this->l == b.l) ||
            (this->h < b.h && this->b == b.b && this->l == b.l);
        return result;
    }

    // Friend function to overload <<
    friend std::ostream& operator<<(std::ostream& out, const Box& B);
};

// Overload << operator outside class
std::ostream& operator<<(std::ostream& out, const Box& B) {
    out << B.l << ' ' << B.b << ' ' << B.h;
    return out;
}