const n=10; m=3;var a:array[1..n,1..m] of integer;i,j,s,k:integer; p:real;beginRandomize;writeln('Исходный массив:');for i:=1 to n do begin for j:=1 to m do begin a[i,j]:=random(81)+20; write(a[i,j]:4); end; writeln; end;s:=0;for i:=1 to n do for j:=1 to m do s:=s+a[i,j];p:=s/n*0.8;writeln('p = ',p:5:2);writeln('Зачислены:');k:=0;for i:=1 to n do begin s:=0; for j:=1 to m do s:=s+a[i,j]; if s>=p then begin write(i,' '); k:=k+1; end; end;writeln;writeln('k = ',k);end.Пример:Исходный массив: 58 79 60 96 63 97 90 97 57 29 68 25 38 75 65 54 69 42 44 70 47 39 49 24 27 64 36 68 21 64p = 137.20Зачислены:1 2 3 5 6 7 10 k = 7