Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
1:
uses crt;
var n,i,t:integer;
begin
clrscr;
readln(n);
t:=0;
for i:=1 to n do
t:=t+i*i;
write(t);
readln;
end.
2
program bt2;
var i,n,t:integer;
begin
readln(n);
s:=0;
for i:=1 to n do
if i mod 2 = 1 then s:=s+i;
readln;
end.
bài 1:
var i,n : integer;
writeln('nhap n');
readln(n);
for i:=1 to 100 do
s:=s+i;
writeln('tong la",s);
readln;
end.
bài 2:
var n:real;
begin
writeln('nhap n');
if n (mod 2=0) and (n mod 3=0) then
writeln('chia het roi')
else writeln(khong chia het');
readln;
end.
Uses crt;
var n,i,s: integer;
begin clrscr;
readln(n);
for i:=1 to n do s:=s+1/i;
writeln(s);
readln;
end.
Sửa đề: S=1/1+1/2+1/3+...+1/n
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/i;
writeln(s:4:2);
readln;
end.
program tong;
uses crt;
var n,i:integer;
t:longint;
begin
clrscr;
write('nhap n:'); readln(n);
t:=0;
for i:=1 to n do
t:=t+1/i;
writeln(t);
readln;
end.
int main()
{
int n;
long s;
s=0;
i=1;
printf("\nSo n la: ");
scanf("%d",&n);
for(int i=1; i<=n; i++)
{
s=s+i;
}
printf("\nTổng %d là %ld: ", n, s);
}
#include <bits/stdc++.h>
using namespace std;
long long i,n;
double s;
int main()
{
cin>>n;
s=0;
for (i=1; i<=n; i++)
s=s+((1*1.0)/(2*(i*1.0+1*1.0)));
cout<<fixed<<setprecision(2)<<s;
return 0;
}
uses crt;
var n,i,t:integer;
begin
clrscr;
readln(n);
t:=0;
for i:=1 to n do
t:=t+2*i-1;
writeln(t);
readln;
end.
Câu 1:
uses crt;
var a,b:integer;
begin
clrscr;
readln(a,b);
write(a+b);
readln;
end.
Câu 2:
uses crt;
var a,b,c:integer;
begin
clrscr;
readln(a,b,c);
writeln(a+b-c);
readln;
end.
Câu 3:
uses crt;
var a,b:integer;
begin
clrscr;
readln(a,b);
writeln(a-b);
readln;
end.
Câu 4:
uses crt;
var x,y,z:integer;
begin
clrscr;
readln(x,y,z);
writeln((x+y)*z);
readln;
end.
uses crt;
var i,s,n:integer;
begin
clrscr;
write('n='); readln(n);
if n>0 then
begin
s:=0;
for i:=1 to n do
if i mod 2=1 then s:=s-i
else s:=s+i;
writeln(s);
end
else writeln('vui long nhap lai');
readln;
end.