70, 35, 43, 132, 121, 11, 60, 64, 24, 31
Объяснение:
1) Изначально s = 0, затем на каждой из 12 – 6 + 1 = 7 итераций к ней прибавляется 10, итого получится 70
2) Аналогично, s = 0 + 7 * (8 – 3) = 35
3) Итерация с i = 1: k = 2 * 4 + 1 = 9. Итерация с i = 2: k = 2 * 9 + 2 = 20. Итерация с i = 3: k = 2 * 20 + 3 = 43.
4) s = 0 + 12 * 11 = 132
5) s = 0 + 11 * (12 – 1) = 121
6) u = 26 – 1 – 2 – 3 – 4 – 5 = 11
7) s = 4 + 5 + … + 11 = 60
8) s = 1 * 2 * 2 * … * 2 (8 – 3 + 1 раз) = 64
9) y = 0 + 4 * 1 + 4 * 2 + 4 * 3 = 24
10) s = 3 + 2 * 2 + 2 * 3 + 2 * 4 + 2 * 5 = 31
#include
typedef struct
{
char imya[40];
char familiya[40];
char otchestvo[40];
int telefon;
int texpasport;
float pages ;
}gor;
void form(char mass[10], char *imya, char *familiya, char *otchestvo, int telefon, int texpasport)
file *f;
gor y;
int i;
if ((f=fopen(mass,"w"))==null) exit(1);
for (i=1; i< =3; i++)
cout< < "vvedite imya: ";
cin> > imya;
cout< < "vvedite familiya: ";
cin> > familiya;
cout< < "vvedite otchestvo: ";
cin> > otchestvo;
cout< < "vvedite telefon: ";
cin> > telefon;
cout< < "vvedite texpasport: ";
cin> > texpasport;
fwrite(& y,sizeof(gor),1,f);
if(ferror(f)! =null)
exit(2);
}
fclose(f);
void vivod(char mass[50])
gor z;
if ((f=fopen(mass, "r"))==null) exit(3);
cout< < "fail: "<
while (! feof(f)) {
fread (& z,sizeof(gor),1,f);
if (! feof(f))
cout< < "imya: "<
cout< < "familiya: "<
cout< < "otchestvo: "<
cout< < "telefon: "<
cout< < "texpasport: "<
void del(char fo[10], char fi[10])
file *f1,*f2;
gor d;
//char temp[40];
if ((f1=fopen(fi,"r"))==null) exit(4);
if ((f2=fopen(fo,"w"))==null) exit(5);
//cout < < "vvedite nazvanie na ydalenie - ";
//cin > > temp;
for (int i=0; i< 3; i++)
fread(& d,sizeof(gor),1,f1);
if (feof(f1)) break;
if (i> 2)
fwrite (& d,sizeof(gor),1,f2);
fclose(f2);
fclose(f1);
void dobav(char fi[10], char fo[10],char *imya, char *familiya, char *otchestvo, int telefon, int texpasport)
int q;
char temp[40];
if ((f1=fopen(fi, "r"))==null) exit(4);
if ((f2=fopen(fo,"r+"))==null) exit(5);
cout < < "vvedite familiu, pered kotorym nuzno dobavit element: ";
cin > > temp;
for (i=0; i< 10; i++)
fread(& d,sizeof(gor),1,f2);
if (feof(f2)) break;
if (strcmp(d.familiya, temp)) break;
q=i;
if (i==q-1)
cout <
void main()
int n=10;
//cout < < "vvedite kol-vo zapisey: - ";
//cin> > n;
//cout <
form("f1.txt",n);
vivod("f1.txt");
del("f1.txt","f2.txt");
cout < < "posle udalenia: \n";
vivod("f2.txt");
getch();
n=1;
system("cls");
dobav ("f2.txt","f2.txt");
cout < < "posle dobavlenia: \n";
vivod ("f2.txt");
70, 35, 43, 132, 121, 11, 60, 64, 24, 31
Объяснение:
1) Изначально s = 0, затем на каждой из 12 – 6 + 1 = 7 итераций к ней прибавляется 10, итого получится 70
2) Аналогично, s = 0 + 7 * (8 – 3) = 35
3) Итерация с i = 1: k = 2 * 4 + 1 = 9. Итерация с i = 2: k = 2 * 9 + 2 = 20. Итерация с i = 3: k = 2 * 20 + 3 = 43.
4) s = 0 + 12 * 11 = 132
5) s = 0 + 11 * (12 – 1) = 121
6) u = 26 – 1 – 2 – 3 – 4 – 5 = 11
7) s = 4 + 5 + … + 11 = 60
8) s = 1 * 2 * 2 * … * 2 (8 – 3 + 1 раз) = 64
9) y = 0 + 4 * 1 + 4 * 2 + 4 * 3 = 24
10) s = 3 + 2 * 2 + 2 * 3 + 2 * 4 + 2 * 5 = 31
#include
#include
#include
#include
#include
#include
typedef struct
{
char imya[40];
char familiya[40];
char otchestvo[40];
int telefon;
int texpasport;
float pages ;
}gor;
void form(char mass[10], char *imya, char *familiya, char *otchestvo, int telefon, int texpasport)
{
file *f;
gor y;
int i;
if ((f=fopen(mass,"w"))==null) exit(1);
for (i=1; i< =3; i++)
{
cout< < "vvedite imya: ";
cin> > imya;
cout< < "vvedite familiya: ";
cin> > familiya;
cout< < "vvedite otchestvo: ";
cin> > otchestvo;
cout< < "vvedite telefon: ";
cin> > telefon;
cout< < "vvedite texpasport: ";
cin> > texpasport;
fwrite(& y,sizeof(gor),1,f);
if(ferror(f)! =null)
exit(2);
}
fclose(f);
}
void vivod(char mass[50])
{
file *f;
gor z;
if ((f=fopen(mass, "r"))==null) exit(3);
cout< < "fail: "<
while (! feof(f)) {
fread (& z,sizeof(gor),1,f);
if (! feof(f))
{
cout< < "imya: "<
cout< < "familiya: "<
cout< < "otchestvo: "<
cout< < "telefon: "<
cout< < "texpasport: "<
}
fclose(f);
}
}
void del(char fo[10], char fi[10])
{
file *f1,*f2;
gor d;
//char temp[40];
if ((f1=fopen(fi,"r"))==null) exit(4);
if ((f2=fopen(fo,"w"))==null) exit(5);
//cout < < "vvedite nazvanie na ydalenie - ";
//cin > > temp;
for (int i=0; i< 3; i++)
{
fread(& d,sizeof(gor),1,f1);
if (feof(f1)) break;
if (i> 2)
fwrite (& d,sizeof(gor),1,f2);
}
fclose(f2);
fclose(f1);
}
void dobav(char fi[10], char fo[10],char *imya, char *familiya, char *otchestvo, int telefon, int texpasport)
{
int q;
int i;
gor d;
file *f1,*f2;
char temp[40];
if ((f1=fopen(fi, "r"))==null) exit(4);
if ((f2=fopen(fo,"r+"))==null) exit(5);
cout < < "vvedite familiu, pered kotorym nuzno dobavit element: ";
cin > > temp;
for (i=0; i< 10; i++)
{
fread(& d,sizeof(gor),1,f2);
if (feof(f2)) break;
if (strcmp(d.familiya, temp)) break;
q=i;
}
for (i=0; i< 10; i++)
{
if (feof(f2)) break;
fwrite (& d,sizeof(gor),1,f2);
if (i==q-1)
{
cout< < "vvedite imya: ";
cin> > imya;
cout< < "vvedite familiya: ";
cin> > familiya;
cout< < "vvedite otchestvo: ";
cin> > otchestvo;
cout< < "vvedite telefon: ";
cin> > telefon;
cout< < "vvedite texpasport: ";
cin> > texpasport;
cout <
}
}
fclose(f2);
fclose(f1);
}
void main()
{
int n=10;
//cout < < "vvedite kol-vo zapisey: - ";
//cin> > n;
//cout <
form("f1.txt",n);
vivod("f1.txt");
del("f1.txt","f2.txt");
cout < < "posle udalenia: \n";
vivod("f2.txt");
getch();
n=1;
system("cls");
dobav ("f2.txt","f2.txt");
cout < < "posle dobavlenia: \n";
vivod ("f2.txt");
getch();
}