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Program HOC24;
var d,i,n: integer;
t: real;
begin
write('Nhap n: '); readln(n);
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(a[i]);
end;
d:=0; t:=0;
for i:=1 to n do
if a[i] mod 2=0 then
begin
d:=d+1;
t:=t+a[i];
end;
t:=t/d;
writeln('Co ',d,' so chan trong mang');
writeln('Trung binh cong cac phan tu chan la: ',t:2:5);
write('Cac phan tu trong day theo chieu doc: ');
for i:=1 to n do writeln(a[i]);
readln
end.
Câu 1:
var i,n:integer;
s:longint;
begin
Write('n = ');readln(n)
for i:=1 to n do
s:=s+2*i+1;
write('tong la: ',s);
readln
end.
Câu 2
Bài 5:
Var b:array:[1..1000] of integer;
i,n,max:integer;
Begin
Write('n = ');readln(n);
For i:=1 to n do
Begin
Write('Nhap so thu ',i,' = ');readln(b[i]);
End;
Write('Cac phan tu am la: ');
For i:=1 to n dko
if b[i]<0 then write(b[i]:8);
writeln;
max:=b[1];
For i:=2 to n do
If b[i] > max then max:=b[i];
write('So lon nhat la ',max);
Readln
End.
uses crt;
const fi='standard.inp';
fo='standard.out';
var f1,f2:text;
a:array[1..100]of integer;
i,j,n,dem,t:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
for i:=1 to n do
readln(f1,a[i]);
{--------------------xu-ly------------------}
for i:=1 to n do
begin
write(f2,a[i],' co so uoc la: ');
dem:=0;
t:=0;
for j:=1 to a[i] do
if a[i] mod j=0 then
begin
dem:=dem+1;
t:=t+j;
end;
writeln(f2,dem.,' tong uoc la: ',t);
end;
close(f1);
close(f2);
readln;
end.
2:
uses crt;
var a:array[1..100]of integer;
n,i:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
for i:=1 to n do
if a[i]<0 then write(i:4);
readln;
end.
uses crt;
var a:array[1..100]of integer;
i,n,t:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
for i:=1 to n do write(a[i]:4);
writeln;
for i:=1 to n do
if (a[i] mod 2<>0) then write(a[i]:4);
writeln;
t:=0;
for i:=1 to n do t:=t+a[i];
writeln(t);
writeln(t/n:4:2);
readln;
end.
Bài 1:
Program HOC24;
var a: array[1..1000] of integer;
i,n,d: integer;
begin
write('Nhap so phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(a[i]);
end;
for i:=1 to n do if (a[i]<0) and (a[i] mod 2=0) then d:=d+1;
write('Co ',d,' so nguyen am chan trong day so');
readln
end.
Bài 2:
Program HOC24;
var a: array[1..1000] of integer;
i,n: integer;
t: longint;
begin
write('Nhap so phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(a[i]);
end;
t:=0;
for i:=1 to n do if a[i] mod 5=0 then t:=t+a[i];
write(Tong la: ',t);
readln
end.
uses crt;
var a:array[1..10000]of integer;
n,i,t,dem:integer;
begin
clrscr;
repeat
write('nhap n='); readln(n);
until (0<n) and (n<10000);
for i:=1 to n do
begin
repeat
write('a[',i,']='); readln(a[i]);
until (a[i]<=109);
end;
t:=0;
dem:=0;
for i:=1 to n do
if a[i]<0 then
begin
t:=t+a[i];
inc(dem);
end;
writeln('Trung binh cong cac so am la: ',t/dem:4:2);
readln;
end.