C++
#include <iostream>
#include <ctime>
using namespace std;
void sort(int* arr, int size);
int main()
{
srand(time(0));
int size = 10;//Укажешь SIZE
int* arr = new int[size];
for (int i = 0; i < size; i++)
{
arr[i] = 1 + rand() % 50;
cout << arr[i] << " ";
}
sort(arr, size);
cout << endl << endl;
for (int i = 0; i < size; i++)
{
cout << arr[i] << " ";
}
return 0;
}
void sort(int* arr, int size)
{
int temp = 1;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
if (arr[i] < arr[j])
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
}
}
}
}
Объяснение:
const n=5;
Var
P: array [1..n,1..n] of real;
i, j : integer;
Begin
Randomize;
writeln('Исходный массив P:');
for i:=1 to n do
begin
for j:=1 to n do
begin
P[i,j]:=10*random;
write(P[i,j]:5:1);
end;
writeln;
end;
for i:=1 to n do
for j:=1 to n do
if j>i then P[i,j]:=0 else P[i,j]:=round(P[i,j]);
writeln('Изменённый массив P:');
for i:=1 to n do
begin
for j:=1 to n do write(P[i,j]:5:1);
writeln;
end;
End.
Пример:
Исходный массив P:
6.0 6.5 4.2 0.6 4.6
5.7 8.8 0.3 6.2 9.0
3.0 5.3 4.0 6.0 4.8
6.0 3.0 5.0 5.3 8.7
8.9 8.8 6.8 5.3 5.1
Изменённый массив P:
6.0 0.0 0.0 0.0 0.0
6.0 9.0 0.0 0.0 0.0
3.0 5.0 4.0 0.0 0.0
6.0 3.0 5.0 5.0 0.0
9.0 9.0 7.0 5.0 5.0