Ввод строк целиком

  cin.sync();

#include <iostream>
#include <conio.h>
#include <math.h>
#include <string.h>
#include <windows.h>
 
using namespace std;
const LENGTH=256;
 
struct BOOK {
    char author[256], title[256];
    int year, page;
    double price;
}
;
 
void set_max_size()
{
    HANDLE out_handle = GetStdHandle(STD_OUTPUT_HANDLE);
    COORD maxWindow = GetLargestConsoleWindowSize(out_handle); // размер самого большого возможного консольного окна
    SMALL_RECT srctWindow = { 0, 0, maxWindow.X - 5, maxWindow.Y - 5 };
    SMALL_RECT minWindow = { 0, 0, 0, 0 };
    SetConsoleWindowInfo(out_handle, true, &minWindow);
    SetConsoleScreenBufferSize(out_handle, maxWindow);
    SetConsoleWindowInfo(out_handle, true, &srctWindow);
    cout << "max console size X = " << maxWindow.X << "; " << "max console size Y = " << maxWindow.Y <<endl;
}
 
int cmp(const void* a, const void* b) {
    return ((BOOK*)a)->year-((BOOK*)b)->year;
}
 
 
void main ()
{
int i, n, j;
set_max_size();     // размер окна
system("color F0"); // цвет
 
printf("Enter quantity of books n=");
    scanf("%d", &n);
    BOOK base[256];
    for(i=0; i<n; i++)
    {
    cout<<"Book "<<i+1<<":"<<endl;
    cout<<"Title: ";
    cin>>base[i].title;
    cin.sync();
    cout<<"Author: ";
    cin>>base[i].author;
    cin.sync();
    cout<<"Year of release: ";
    cin>>base[i].year;
    cout<<"Quantity of pages: ";
    cin>>base[i].page;
    cout<<"Price: $";
    cin>>base[i].price;
    }
    cout<<"Unsorted Book list:"<<endl;
    for(i=0; i<n;i++)
    {
    cout<<"Book "<<i<<": ";
    cout<<"Title: "<<base[i].title;
    cout<<" Author: "<<base[i].author;
    cout<<" Year: "<<base[i].year;
    cout<<" Pages: "<<base[i].page;
    cout<<" Price: $"<<base[i].price<<endl;
    }
 
qsort(base,n,sizeof(base[n]),cmp);
   cout<<"Sorted Book list:"<<endl;
for (i = j; j < n; j++)
{
cout<<"Book "<<j<<": ";
    cout<<"Title: "<<base[j].title;
    cout<<" Author: "<<base[j].author;
    cout<<" Year: "<<base[j].year;
    cout<<" Pages: "<<base[j].page;
    cout<<" Price: $"<<base[j].price<<endl;
 
}
 
 
system("Pause");
}