#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();
}
s = 45
Объяснение:
s = 100 // s = 100
for k in range(11): // Цикл выполняется 11 раз (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
s = s - 5; // s = s - 5
print(s) // Выводим s
Итерация 1:
s = 100
s = 100 - 5
s = 95
Итерация 2:
s = 95
s = 95- 5
s = 90
Итерация 3:
s = 90
s = 90 - 5
s = 85
Итерация 4:
s = 85
s = 85- 5
s = 80
Итерация 5:
s = 80
s = 80- 5
s = 75
Итерация 6:
s = 75
s = 75- 5
s = 70
Итерация 7:
s = 70
s = 70- 5
s = 65
Итерация 8:
s = 65
s = 65- 5
s = 60
Итерация 9:
s = 60
s = 60- 5
s = 55
Итерация 10:
s = 55
s = 55- 5
s = 50
Итерация 11:
s = 50
s = 50 - 5
s = 45
Поделитесь своими знаниями, ответьте на вопрос:
Составить программу вычисления в одномерном массиве с произведения четных и положительных элементов и сумму элементов меньших 6
c:array [1..10] of integer;
i, even, positive, sumLessSix: integer;
begin
randomize;
writeln ('Рандомный массив');
for i:=1 to 10 do begin
c[i]:= random(20)-10;
write (c[i],' ');
end; {for}
writeln;
writeln('Произведение четных чисел');
even:=1;
for i:=1 to 10 do
if c[i] mod 2 = 0 then
even:= even*c[i];
write(even,' ');
writeln;
writeln('Произведение положительных чисел');
positive:=1;
for i:=1 to 10 do
if c[i] > 0 then
positive:= positive*c[i];
write(positive,' ');
writeln;
writeln('Сумма элементов меньших 6');
positive:=1;
for i:=1 to 10 do
if c[i] < 6 then
sumLessSix:= sumLessSix+c[i];
write(sumLessSix,' ');
end.