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Câu 1:
program Tinhtong:
var
n, i, sum: integer;
begin
write('Nhap n: ');
readln(n);
sum := 0;
for i := 2 to n do
begin
if i mod 2 = 0 then
begin
sum := sum + i;
end;
end;
writeln('Tong cac so chan tu 2 toi ', n, ' la ', sum);
readln;
end.
Câu 2:
program Tinhtong:
var
n, i, sum: integer;
begin
write('Nhap n: ');
readln(n);
sum := 0;
for i := 1 to n do
begin
if i mod 2 = 1 then
begin
sum := sum + i;
end;
end;
writeln('Tong cac so le tu 1 toi ', n, ' la ', sum);
readln;
end.
uses crt;
var n, i, j, dem: longint; {Bạn có thể thay longint thành integer nha}
A:array[1..1000] of longint;
begin
clrscr;
Write('Nhap N: '); readln(n);
for i:=1 to n do
begin
write('Nhap phan tu thu ',i,': ');
readln(A[i]);
end;
Write('Cac so nguyen to co trong mang la: ');
for i:=1 to n do
begin
dem:=0;
for j:=2 to A[i]/2 do
if A[i] mod j=0 then dem:=dem+1;
if dem=0 then write(A[i],'; ');
end;
end.
uses crt;
var a:array[1..100]of integer;
i,n,t:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
t:=0;
for i:=1 to n do
t:=t+a[i];
writeln(t);
readln;
end.
uses crt;
var a:array[1..100]of integer;
i,n:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
readln;
end.
Câu 1:
uses crt;
var s,i,n:integer;
begin clrscr;
s:=0;
write('Nhap n: ');readln(n);
for i:=1 to n do
if i mod 2 <> 0 then inc(s,i);
write('Tong cac so le tu 1 den ',n,' la: ',s);
readln
end.
Câu 2:
uses crt;
var s,i,n:integer;
begin clrscr;
s:=0;
write('Nhap n: ');readln(n);
for i:=1 to n do
if i mod 2 = 0 then inc(s,i);
write('Tong cac so le tu 1 den ',n,' la: ',s);
readln
end.
Var i,n:integer;
s:longint;
Begin
Write('n = ');readln(n);
For i:=1 to n do
s:=s+i;
Write('Tong la ',s);
Readln;
End.
Bài 2:
#include <bits/stdc++.h>
using namespace std;
long long x,y;
int main()
{
cin >>x>>y;
cout<<x<<" "<<y;
swap(x,y);
cout<<x<<" "<<y;
return 0;
}
program TongUoc;
uses crt;
var
N, i, Tong: integer;
begin
clrscr;
Tong := 0;
write('Nhap so tu nhien N: ');
readln(N);
// Tinh tong cac uoc cua N
for i := 1 to N do
begin
if N mod i = 0 then
begin
Tong := Tong + i;
end;
end;
writeln('Tong cac uoc cua ', N, ' la: ', Tong);
readln;
end.
1:
uses crt;
var b,c:integer;
begin
clrscr;
write('nhap b='); readln(b);
write('nhap c='); readln(c);
if b=0 then
if c=0 then writeln('phuong trinh co vo so nghiem')
else writeln('phuong trinh vo nghiem')
else writeln('phuong trinh co nghiem x='-c/b:4:2);
readln;
end.
2:
uses crt;
var i,s,n:integer;
begin
clrscr;
write('n='); readln(n);
s:=0;
for i:=1 to n do
if i mod 2=0 then s:=s+i;
writeln('tong cac so chan trong khoang tu 1 toi ',n,' la: ',s);
readln;
end.
3:
uses crt;
var x,lt:real;
n,i:integer;
begin
clrscr;
write('x='); readln(x);
write('n='); readln(n);
lt:=1;
for i:=1 to n do
lt:=lt*x;
writeln('luy thua cua ',x,'^',n,' la: ',lt:4:2);
readln;
end.