Записать составное высказывание в виде логического выражения и составить для него таблицу истинности: "Луна - планета или цинк - металл) и (2*2=5 или кислород - металл)

x=16

ответ: 16 этажей

include < iostream>

using namespace std;

int main()

{int n;

  cin > > n;

switch(n)

        {case 1: cout< < "i"; break;

          case 5: cout< < "v"; break;

          case 10: cout< < "x"; break;

          case 50: cout< < "l"; break;

          case 100: cout< < "c"; break;

          case 500: cout< < "d"; break;

          case 1000: cout< < "m"; break;

        }

return 0;

}

существует несколько стандартных разрешений монитора: 640 на 480, 800 на 600, 1024 на 768, 1280 на на 1024. т.е. 1310720 должно быть произведением этих параметров, получается разрешающая способность 1280 на 1024.

или

1280 x 1024 - это единственное стандартное разрешение, позволяющее вместить на экран ровно 1310720 px

1)program zadacha1; uses crt; var b,i,j: integer; c,pr: real; a: array [1..4,1..7] of integer; beginclrscr; pr: =1; for i: =1 to 4 dobegin for j: =1 to 7 do begin readln(a[i,j]); end; end; for i: =1 to 4 dobegin 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; beginrandomize; clrscr; pr: =1; for i: =1 to k dobegin for j: =1 to k do begin a[i,j]: =random(36)+10; end; end; for i: =1 to k dobegin 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 dobegin 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; beginrandomize; clrscr; for i: =1 to k dobegin for j: =1 to k do begin a[i,j]: =random(55-12+1)+12; end; end; for i: =1 to k dobegin for j: =1 to k do write(a[i,j],' '); writeln; end; for i: =1 to k dobeginif (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 dobegin 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; beginrandomize; clrscr; for i: =1 to k dobegin for j: =1 to k do begin a[i,j]: =random(91)-20; end; end; j: =k; for i: =1 to k dobegin 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 dobegin 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; beginrandomize; clrscr; for i: =1 to k dobegin for j: =1 to k do begin a[i,j]: =random(31)-40; end; end; j: =k; for i: =1 to k dobegin 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 dobegin 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; beginrandomize; clrscr; for i: =1 to k dobegin for j: =1 to k do begin a[i,j]: =random(21); end; end; j: =k; for i: =1 to k dobegin 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 dobegin 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; beginrandomize; clrscr; for i: =1 to k dobegin for j: =1 to k do a[i,j]: =random(10); end; j: =k; for i: =1 to k dobegin l: =l+a[i,j]; j: =j-1; end; for i: =1 to k dobegin for j: =1 to k do write(a[i,j],' '); writeln; end; for i: =1 to k dobegin 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; beginrandomize; clrscr; for i: =1 to k dobegin for j: =1 to k do a[i,j]: =random(10); end; j: =k; for i: =1 to k dobegin l: =l+a[i,j]; j: =j-1; end; l: =l/k; for i: =1 to k dobegin for j: =1 to k do write(a[i,j],' '); writeln; end; for i: =1 to k dobegin sum: =sum+a[i,i]; end; sum: =sum/2; writeln('sum ',sum: 2: 2); writeln('sred',l: 2: 2); readkey; end.