Статическая линковка библиотек

#include <iostream>
using namespace std;
 
int main(int argc, char *argv[])
{
    setlocale(LC_ALL, "rus");
    cout << "Привет МИР!" << endl;
    return 0;
}

#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
    setlocale(LC_ALL, "rus");
    double nNumber;
    cout << "Введите число: ";
    cin >> nNumber;
    cout << "Ваше число " << nNumber << "!" << endl;
    return 0;
}

#include <windows.h>
#define STRLEN(x)   (sizeof(x)/sizeof(TCHAR) - 1)
using namespace std;
int main(int argc, char *argv[])
{
    SetConsoleOutputCP(1251);
    double nNumber;
    HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    HANDLE hStdIn = GetStdHandle(STD_INPUT_HANDLE);
    DWORD dwCount = 0, c = 0;
    TCHAR szNumber[100];
    const TCHAR szEnterMsg[] = TEXT("Введите число: ");
    const TCHAR szYourMsg[] = TEXT("Ваше число ");
    WriteConsole(hStdOut, &szEnterMsg, STRLEN(szEnterMsg), &dwCount, NULL);
    ReadConsole(hStdIn, &szNumber, STRLEN(szNumber), &dwCount, NULL);
    c = dwCount;
    WriteConsole(hStdOut, &szYourMsg, STRLEN(szYourMsg), &dwCount, NULL);
    WriteConsole(hStdOut, &szNumber, c-2, &dwCount, NULL);
    WriteConsole(hStdOut, "!\n", 2, &dwCount, NULL);
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
    system("chcp 1251 > nul");
    double nNumber = 0;
    printf("Введите число: ");
    scanf("%lf", &nNumber);
    printf("Ваше число %g!\n", nNumber);
    return 0;
}