Современные и средства создания документов

type

  base = record

     id: integer;

     ball: integer;

  end;

var

  t: text;

  a: array of array of integer;

  n: integer;

  st, tmp: string;

  err: integer := 1;

  database: base;

begin

  readln(n);

  setlength(a, n);

  for i: integer := low(a) to high(a) do

     setlength(a[i], 2);

  for i: integer := low(a) to high(a) do

  begin

     readln(st);

     tmp := st;

     delete(tmp, pos(' ', tmp, err), tmp.Length - pos(' ', tmp, err) + 1);

     database.id := strtoint(tmp);

     tmp := st;

     delete(tmp, 1, pos(' ', tmp, err));

     database.ball := strtoint(tmp);

     a[i, 0] := database.id;

     a[i, 1] := database.ball;

  end;

  var j: integer := 0;

  assign(t, 'output.txt');

  rewrite(t);

  while (j <= high(a)) do

  begin

     if (j + 1 < high(a)) and (a[j, 1] = a[j + 1, 1]) then

        if (a[j, 0] < a[j + 1, 0]) then begin

           write(t, inttostr(a[j, 0])); write(t, ' '); write(t, inttostr(a[j, 1])); writeln(t,'');

           write(t, inttostr(a[j + 1, 0])); write(t, ' '); write(t, inttostr(a[j + 1, 1])); writeln(t,'');

        end else begin

           write(t, inttostr(a[j + 1, 0])); write(t, ' '); write(t, inttostr(a[j + 1, 1])); writeln(t,'');

           write(t, inttostr(a[j, 0])); write(t, ' '); write(t, inttostr(a[j, 1])); writeln(t,'');

        end;

     if (j+1=n) then

        write(t, inttostr(a[j, 0])); write(t, ' '); write(t, inttostr(a[j, 1])); writeln(t,'');

     inc(j, 2);

  end;

  close(t);

end.

Відповідь:

#include <iostream>

using namespace std;

int n, i, j, k;

double d, s;

int main()

{

cout << "Poryadok: " << endl;

cin >> n;

double **a = new double *[n];

for (i = 0; i <= n; i++)

a[i] = new double [n];

double **a1 = new double *[n];

for (i = 0; i <= n; i++)

a1[i] = new double [n];

double *b = new double [n];

double *x = new double [n];

cout << "Vvedite koefficienty i svobodnye chleny " << endl;

for (i = 1; i <= n; i++)

{

for (j = 1; j <= n; j++)

{

cout << "a[ " << i << "," << j << "]= ";

cin >> a[i][j];

a1[i][j] = a[i][j];

}

cout << "b,[ " << i << "]= ";

cin >> b[i];

}

for (k = 1; k <= n; k++) // прямой ход

{

for (j = k + 1; j <= n; j++)

{

d = a[j][k] / a[k][k]; // формула (1)

for (i = k; i <= n; i++)

{

a[j][i] = a[j][i] - d * a[k][i]; // формула (2)

}

b[j] = b[j] - d * b[k]; // формула (3)

}

}

for (k = n; k >= 1; k--) // обратный ход

{

d = 0;

for (j = k + 1; j <= n; j++)

{

s = a[k][j] * x[j]; // формула (4)

d = d + s; // формула (4)

}

x[k] = (b[k] - d) / a[k][k]; // формула (4)

}

cout << "Korni sistemy: " << endl;

for( i = 1; i <= n; i++)

cout << "x[" << i << "]=" << x[i] << " " << endl;

return 0;

}

Пояснення: