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Bài 1:
uses crt;
var n,i:integer;
s:real;
begin
clrscr;
write('Nhap n='); readln(n);
s:=0;
for i:=1 to n do
s:=s+1/(2*i+1);
writeln(s:4:2);
readln;
end.
Bạn tự khai báo nhé!;
Ảnh nhỏ thì nhấn mở hình ảnh trong tab mới nha
4...
begin
repeat
write('N= '):
readln(n);
until n>0;
s:=0;
for i:=1 to n do
s:=s+1/n;
write('s= ',s);
readln
end.
program TimMinMaxTrungBinh;
var
N, i, max, min, sum: integer;
a: array[1..50] of integer;
TB, minTB, maxTB: real;
begin
writeln('Nhap so nguyen duong N:');
readln(N);
sum := 0;
for i := 1 to N do
begin
write('Nhap so thu ', i, ': ');
readln(a[i]);
sum := sum + a[i];
end;
max := a[1];
min := a[1];
for i := 2 to N do
begin
if a[i] > max then
max := a[i];
if a[i] < min then
min := a[i];
end;
TB := sum / N;
minTB := TB;
maxTB := TB;
for i := 1 to N do
begin
if (a[i] < TB) and (a[i] < minTB) then
minTB := a[i];
if (a[i] > TB) and (a[i] > maxTB) then
maxTB := a[i];
end;
writeln('Gia tri lon nhat la: ', max);
writeln('Gia tri nho nhat la: ', min);
writeln('Gia tri trung binh la: ', TB:2:2);
if minTB = TB then
writeln('Khong co gia tri nao nho hon TB')
else
writeln('Gia tri nho nhat < TB la: ', minTB);
if maxTB = TB then
writeln('Khong co gia tri nao lon hon TB')
else
writeln('Gia tri lon nhat > TB la: ', maxTB);
readln;
end.
Bài 2:
uses crt;
var a:array[1..30]of integer;
i,n,kt:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
kt:=0;
for i:=1 to n-1 do
if a[i]>a[i+1] then kt:=1;
if kt=0 then write('Day so khong giam')
else writeln('Day so lon xon');
readln;
end.
Bài 1:
uses crt;
var a:array[1..100]of integer;
i,n,min:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
min:=a[1];
for i:=1 to n do
if min>a[i] then min:=a[i];
writeln(min);
readln;
end.
Bài 2:
uses crt;
var a:array[1..100]of integer;
i,n,max:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
max:=a[1];
for i:=1 to n do
if max<a[i] then max:=a[i];
writeln(max);
readln;
end.
Bài 1:
uses crt;
var n,i,s:integer;
begin
clrscr;
write('Nhap n='); readln(n);
s:=0;
for i:=1 to n do
if i mod 6=0 then s:=s+i;
writeln(s);
readln;
end.
Bài 2:
uses crt;
var a,b,c,ucln,i:integer;
begin
clrscr;
write('a='); readln(a);
write('b='); readln(b);
write('c='); readln(c);
while a<>b do
begin
if a>b then a:=a-b
else b:=b-a;
end;
ucln:=a;
while ucln<>c do
begin
if ucln>c then ucln:=ucln-c
else c:=c-ucln;
end;
writeln(ucln);
readln;
end.
var i,n:integer;
s:real;
begin
s:=1;
write('ban hay nhap vao mot so nguyen: '); readln(n);
for i:= 1 to n do
s:= s + (1/(i*(i+1));
writeln(' tong s = ',s:0:2);
readln
end.
var i,n:integer;
s:real;
begin
s:=1;
write('ban hay nhap vao mot so nguyen: '); readln(n);
for i:= 1 to n do
s:= s + (1/(i*(i+1));
writeln(' tong s = ',s:0:2);
readln
end.