Язык программирования паскаль. 1) найти количество отрицательных элементов в массиве а [3,8]. 2) заполнит и вывести массив р [6,7], запросить номер строки и вывести её на экран. 3) заполнить и вывести массив р [6,7], запросить номер строки, заменить все её элементы на 5 и вывести новый массив. 4) в квадратной матрице а [10,10] заменить элементы главной диагонали на 0. всё нужно

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Ответ:

MrReizer

17.02.2022

1
var
i, j, n: integer;
a: array[1..3, 1..8]of integer;
begin
for i := 1 to 3 do
begin
  for j := 1 to 8 do
begin
a[i, j] := random(-9, 9);
write(a[i, j]:3);
if a[i, j] < 0 then n := n + 1;
end;
writeln;
end;
writeln('Количество отрицательных: ', n);
end.

2
var
i, j, n: integer;
p: array[1..6, 1..7]of integer;
begin
for i := 1 to 6 do
begin
for j := 1 to 7 do
begin
p[i, j] := random(-9, 9);
write(p[i, j]:3);
end;
writeln;
end;
write('Какую строку вывести: ');
readln(n);
for j:=1 to 7 do write(p[n,j]:3);
end.

3
var
i, j, n: integer;
p: array[1..6, 1..7]of integer;
begin
for i := 1 to 6 do
begin
  for j := 1 to 7 do
begin
p[i, j] := random(-9, 9);
write(p[i, j]:3);
end;
writeln;
end;
write('Какую строку изменить: ');
readln(n);
for j:=1 to 7 do p[n,j]:=5;
for i := 1 to 6 do
begin
  for j := 1 to 7 do write(p[i, j]:3);
writeln;
end;
end.

4
var
i, j, n: integer;
a: array[1..10, 1..10]of integer;
begin
for i := 1 to 10 do
begin
for j := 1 to 10 do
begin
a[i, j] := random(-9, 9);
write(a[i, j]:3);
end;
writeln;
end;
for j:=1 to 10 do a[j,j]:=0;
writeln('Измененный массив: ');
for i := 1 to 10 do
begin
for j := 1 to 10 do write(a[i, j]:3);
writeln;
end;
end.

4,6(50 оценок)

Открыть все ответы

Ответ:

vladkanter

17.02.2022

1. Современное решение

// PascalABC.NET 3.2, сборка 1437 от 03.05.2017
// Внимание! Если программа не работает, обновите версию!

begin
var a:=ArrRandom(ReadInteger('n='),-50,50); a.Println;
var min:=a.Min;
a.Transform(x->x<0?x*min:x); a.Println
end.

Пример
n= 15
-34 7 0 -48 4 42 35 14 -47 6 -29 43 46 40 -18
1632 7 0 2304 4 42 35 14 2256 6 1392 43 46 40 864

2. Популярное до сих пор в школах решение на TurboPascal 7.01 (1983г.)

uses Crt;
const
nn=100;
var
i,n,min:integer;
a:array[1..nn] of integer;
begin
ClrScr;
Randomize;
Write('n='); Read(n);
min:=100;
for i:=1 to n do begin
    a[i]:=Random(101)-50;
    Write(a[i],' ');
    if a[i]<min then min:=a[i]
    end;
Writeln;
for i:=1 to n do
    if a[i]<0 then a[i]:=a[i]*min;
for i:=1 to n do
    Write(a[i],' ');
Writeln;
ReadKey
end.

4,7(87 оценок)

Ответ:

KUGOTVIN

17.02.2022

1)
program zadacha1;
uses crt;
var b,i,j:integer;
c,pr:real;
a:array [1..4,1..7] of integer;

begin
clrscr;
pr:=1;
for i:=1 to 4 do
begin
for j:=1 to 7 do
begin
readln(a[i,j]);
end;
end;
for i:=1 to 4 do
begin
for j:=1 to 7 do
begin
if (a[i,j] mod 3) = 0 then pr:=pr*a[i,j];
end;
end;
pr:=pr/3;
writeln(pr:2:3);
readkey;
end.

2)
program zadacha2;
uses crt;
const k=8;
var b,i,j,sum:integer;
c,pr:real;
a:array [1..k,1..k] of integer;

begin
randomize;
clrscr;
pr:=1;
for i:=1 to k do
begin
for j:=1 to k do
begin
a[i,j]:=random(36)+10;
end;
end;

for i:=1 to k do
begin
for j:=1 to k do
write(a[i,j],' ');
writeln;
end;
for j:=1 to k do
begin
if (a[k,j] mod 5) = 0 then pr:=pr*a[i,j];
end;

for i:=1 to k do
begin
for j:=1 to k do
begin
if (i=j) and (a[i,j] > 0) then sum:=sum+a[i,j];
end;
end;

writeln('Prozvedenie ',pr:2:2);
writeln('Summa ',sum);
writeln('Raznostb ',pr-sum:2:2);
readkey;
end.

3)
program zadacha3;
uses crt;
const k=9;
var b,i,j:integer;
sred,sum,l:real;
a:array [1..k,1..k] of integer;

begin
randomize;
clrscr;
for i:=1 to k do
begin
for j:=1 to k do
begin
a[i,j]:=random(55-12+1)+12;
end;
end;
for i:=1 to k do
begin
for j:=1 to k do
write(a[i,j],' ');
writeln;
end;

for i:=1 to k do
begin
if (a[i,k] mod 2) = 1 then
begin
l:=l+a[i,k];
b:=b+1;
end;
end;
sred:=l/b;

for i:=1 to k do
begin
if a[i,i]>25 then sum:=sum+a[i,i];
end;
writeln;

writeln('Srednee ',sred:2:2);
writeln('Summa ',sum:2:1);
readkey;
end.

4)
program zadacha4;
uses crt;
const k=5;
var b,i,j:integer;
sred,sum,l:real;
a:array [1..k,1..k] of integer;

begin
randomize;
clrscr;
for i:=1 to k do
begin
for j:=1 to k do
begin
a[i,j]:=random(91)-20;
end;
end;
j:=k;
for i:=1 to k do
begin
if (a[i,j] mod 2)<> 0 then
begin
l:=l+a[i,j];
b:=b+1;
end;
j:=j-1;
end;
sred:=l/b;

for i:=1 to k do
begin
for j:=1 to k do
write(a[i,j],' ');
writeln;
end;
writeln;

writeln('Srednee ',sred:4:2);
readkey;
end.

5)
program zadacha5;
uses crt;
const k=5;
var b,i,j:integer;
sred,sum,l:real;
a:array [1..k,1..k] of integer;

begin
randomize;
clrscr;
for i:=1 to k do
begin
for j:=1 to k do
begin
a[i,j]:=random(31)-40;
end;
end;
j:=k;
for i:=1 to k do
begin
if (a[i,j] mod 2)<> 0 then
begin
l:=l+a[i,j];
b:=b+1;
end;
j:=j-1;
end;
sred:=l/b;

for i:=1 to k do
begin
for j:=1 to k do
write(a[i,j],' ');
writeln;
end;
writeln;

writeln('Srednee ',sred:4:2);
readkey;
end.

6)

program zadacha6;
uses crt;
const k=6;
var b,i,j:integer;
sred,sum,l:real;
a:array [1..k,1..k] of integer;

begin
randomize;
clrscr;
for i:=1 to k do
begin
for j:=1 to k do
begin
a[i,j]:=random(21);
end;
end;
j:=k;
for i:=1 to k do
begin
if a[i,j]>5 then
begin
l:=l+a[i,j];
end;
j:=j-1;
end;
l:=l/2;

for i:=1 to k do
begin
for j:=1 to k do
write(a[i,j],' ');
writeln;
end;
writeln;

writeln('Sum ',l:2:2);
readkey;
end.

7)

program zadacha7;
uses crt;
const k=5;
var b,i,j:integer;
pred,sum,l:real;
a:array [1..k,1..k] of integer;

begin
randomize;
clrscr;
for i:=1 to k do
begin
for j:=1 to k do
a[i,j]:=random(10);
end;
j:=k;
for i:=1 to k do
begin
l:=l+a[i,j];
j:=j-1;
end;

for i:=1 to k do
begin
for j:=1 to k do
write(a[i,j],' ');
writeln;
end;

for i:=1 to k do
begin
sum:=sum+a[i,i];
end;
pred:=sum+l;

writeln('Sum ',pred/10:2:2);
readkey;
end.

8)
program zadacha8;
uses crt;
const k=5;
var b,i,j:integer;
pred,sum,l:real;
a:array [1..k,1..k] of integer;

begin
randomize;
clrscr;
for i:=1 to k do
begin
for j:=1 to k do
a[i,j]:=random(10);
end;
j:=k;
for i:=1 to k do
begin
l:=l+a[i,j];
j:=j-1;
end;
l:=l/k;
for i:=1 to k do
begin
for j:=1 to k do
write(a[i,j],' ');
writeln;
end;

for i:=1 to k do
begin
sum:=sum+a[i,i];
end;
sum:=sum/2;

writeln('Sum ',sum:2:2);
writeln('Sred',l:2:2);
readkey;
end.