Pascal:var a:array [1..30] of integer; i:integer; p:longint;begin p:=1; randomize; a[1]:=random(21)+50; for i:=2 to 29 do a[i]:=random(100); a[30]:=random(21)+50; for i:=1 to 30 do write (a[i],' '); writeln; for i:=1 to 30 do if (a[i] in [10..99]) and (a[i] mod 2 = 0) and ((a[i] div 10) in [5..7]) then p:=p*a[i]; writeln ('Proizvedenie: ',p); readln;end.
C++:#include <iostream>#include <ctime>#include <cstdlib>using namespace std;int main(){ int a[30],i; unsigned long long p = 1; srand (time(NULL)); a[0] = rand()%70+50; for (i = 1; i<29; i++) a[i] = rand()%100; a[29] = rand()%7+50; for (i = 0; i<30; i++) { cout <<a[i] <<" "; if ((a[i]/10==5 || a[i]/10==6 || a[i]/10==7) && (a[i]>9 && a[i]<100) && a[i]%2==0) p*=a[i]; } cout <<endl; cout <<"Proizvedenie: " <<p <<endl; return 0;}