Обработка данных о ремонтной бригаде

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
struct present_s {
    std::string m_Name;
    std::string m_Day;
    int m_iMonth;
    int m_iYear;
 
};
 
std::vector<struct present_s> g_Presents;
 
void add_present()
{
    struct present_s present;
    char szName[64] = {0};
        char szDay[64] = {0};
    std::cout << "Input in format: Name Remont SpareNeed SpareHave" << std::endl;
    scanf("%s %s %d %d ",szName,szRemont,
        &present.m_iSpareNeed,&present.m_iSpareHave);
    present.m_Name = std::string(szName);
    present.m_Remont = std::string(szRemont);
    g_Presents.push_back(present);
}
 
void show_all(int SpareNeed = 0,int SpareHave = 0)
{
    std::cout << std::endl << std::endl;
    std::vector<struct present_s>::iterator it;
    std::cout << std::endl << "Name\Remont\tSpareNeed\tSpareHave" << std::endl;
    for(it = g_Presents.begin(); it != g_Presents.end(); ++it)
    {
        if(Remont == 0)
        {
            std::cout << it->m_Name
                << '\t' << it->m_Remont
                << '\t' << it->m_iSpareNeed
                << '\t' << it->m_iSpareHave
 
                << std::endl;
        }
    }
}
 
static bool _present_sort_name_op(struct present_s& one,struct present_s& two)
{
    return one.m_Name < two.m_Name;
}
 
void sort_by_name()
{
    std::sort(g_Presents.begin(),g_Presents.end(),_present_sort_name_op);
}
 
 
 
 
 
void rem_new_l(char* s)
{
    size_t l = strlen(s);
    if(s[l-1] == '\n') s[l-1] = '\0'; 
}
 
void add_from_file()
{
    char szName[64] = {0};
    char szLine[128] = {0};
    std::cout << "File: ";
    fflush(stdin);
    fgets(szName,64,stdin);
    rem_new_l(szName);
    FILE* fIn = fopen(szName,"r");
    while(fgets(szLine,128,fIn))
    {
        struct present_s present;
        sscanf(szLine,"%s %s %d %d",szName,&present.m_Remont,
            &present.m_iSpareNeed,&present.m_iSpareHave
            );
        present.m_Name = std::string(szName);
        g_Presents.push_back(present);
    }
    fclose(fIn);
}
 
void save_to_file()
{
    char szName[64] = {0};
    std::vector<struct present_s>::iterator it;
    
    std::cout << "File: ";
    fflush(stdin);
    fgets(szName,64,stdin);
    rem_new_l(szName);
    FILE* fOut = fopen(szName,"w");
    for(it = g_Presents.begin(); it != g_Presents.end(); ++it)
    {
        fprintf(fOut,"%s %s %d %d\n",it->m_Name.c_str(),
            it->m_Remont.c_str(),it->m_iSpareNeed,it->m_iSpareHave);
    }
    fclose(fOut);
}
 
int main()
{   
    while(1)
    {
        int choice;
        int d,m,y;
        std::cout 
            << "1. Add present" << std::endl
            << "2. Show all presents" << std::endl
            << "3. Sort by name" << std::endl
            << "4. Sort by cost" << std::endl
            << "5. Show all in day" << std::endl
            << "6. Add from file" << std::endl
            << "7. Save to file" << std::endl
            << "8. Exit" << std::endl;
            
        std::cin >> choice;
        switch(choice)
        {
            case 1: add_present(); break;
            case 2: show_all(); break;
            case 3: sort_by_name(); show_all(); break;
            
 
            case 6: add_from_file(); break;
            case 7: save_to_file(); break;
            case 8: return 0;
        }
    }
    
    return 0;
}