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Bài 2:
uses crt;
var a:array[1..199]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;
{----------------------------xuat-------------------------------}
for i:=1 to n do write(a[i]:4);
readln;
end.
Bài 3:
uses crt;
var a:array[1..199]of integer;
i,n,x,dem:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('a[',i,']='); readln(a[i]);
end;
{----------------------------xu-ly-------------------------------}
write('x='); readln(x);
dem:=0;
for i:=1 to n do
if a[i]=x then inc(dem);
writeln('trong day co ',dem,' gia tri ',x);
readln;
end.
Cho mình hỏi nếu đếm các phần tử có giá trị lẻ trong xâu thì làm như thế nào vậy
uses crt;
var a:array[1..50]of integer;
t,i,n:integer;
begin
clrscr;
repeat
write('Nhap n='); readln(n);
until (0<n) and (n<=50);
for i:=1 to n do
begin
repeat
write('A[',i,']='); readln(a[i]);
until (0<=a[i]) and (a[i]<=32767);
end;
writeln('Day A=');
for i:=1 to n do
write(a[i]:4);
writeln;
t:=0;
for i:=1 to n do
if a[i] mod 2=1 then t:=t+a[i];
writeln('Tong cac so le la: ',t);
writeln('Cac so le trong day A la: ');
for i:=1 to n do
if a[i] mod 2=1 then write(a[i]:4);
readln;
end.
Bài 1:
#include <bits/stdc++.h>
using namespace std;
long long x,n,i,t;
int main()
{
cin>>n;
t=0;
for (i=1; i<=n; i++)
{
cin>>x;
if ((x<0) and (x%2!=0)) t=t+x;
}
cout<<t;
return 0;
}
Câu 1:
uses crt;
var a:array[1..100]of integer;
n,i,tl,tc:integer;
begin
clrscr;
repeat
write('nhap n='); readln(n);
if (n<=0) or (n>100) then writeln('ban da nhap sai, yeu cau ban nhap lai');
until (0<n) and (n<=100);
for i:=1 to n do
begin
repeat
write('a[',i,']='); readln(a[i]);
if abs(a[i])>=1000 then writeln('vui long nhap so co gia tri tuyet doi nho hon 1000');
until abs(a[i])<1000;
end;
{--------------------------xu-ly-----------------------------}
tc:=0;
tl:=0;
for i:=1 to n do
begin
if a[i] mod 2=0 then tc:=tc+a[i];
if a[i] mod 2=1 then tl:=tl+a[i];
end;
writeln('tong so nguyen chan cua day la: ',tc);
writeln('tong so nguyen le cua day la: ',tl);
readln;
end.
Câu 2:
uses crt;
var a:array[1..100]of integer;
n,i:integer;
begin
clrscr;
repeat
write('nhap n='); readln(n);
if (n<=0) or (n>100) then writeln('ban da nhap sai, yeu cau ban nhap lai');
until (0<n) and (n<=100);
for i:=1 to n do
begin
write('a[',i,']='); readln(a[i]);
end;
{--------------------------xu-ly-----------------------------}
writeln('cac so nguyen am co trong day la: ');
for i:=1 to n do
if a[i]<0 then write(a[i]:4);
readln;
end.
Câu 3:
uses crt;
var a:array[1..100]of integer;
n,i,t:integer;
begin
clrscr;
repeat
write('nhap n='); readln(n);
if (n<=0) or (n>100) then writeln('ban da nhap sai, yeu cau ban nhap lai');
until (0<n) and (n<=100);
for i:=1 to n do
begin
write('a[',i,']='); readln(a[i]);
end;
{--------------------------xu-ly-----------------------------}
t:=0;
for i:=1 to n do
if a[i] mod 3=0 then t:=t+a[i];
writeln('tong cac phan tu chia het cho 3 la: ',t);
readln;
end.
Câu 4:
uses crt;
var a,vt:array[1..100]of integer;
n,i,t,dem,j:integer;
min:int64;
begin
clrscr;
repeat
write('nhap n='); readln(n);
if (n<=0) or (n>100) then writeln('ban da nhap sai, yeu cau ban nhap lai');
until (0<n) and (n<=100);
for i:=1 to n do
begin
repeat
write('a[',i,']='); readln(a[i]);
if abs(a[i])>=1000 then writeln('vui long nhap so co gia tri tuyet doi nho hon 1000');
until abs(a[i])<1000;
end;
{--------------------------xu-ly-----------------------------}
min:=maxint;
for i:=1 to n do
if min>a[i] then min:=a[i];
dem:=0;
for i:=1 to n do
if a[i]=min then
begin
inc(dem);
vt[dem]:=i;
end;
writeln('so nho nhat la: ',min);
writeln('vi tri cua no trong day lan luot la: ');
for j:=1 to dem do
write(vt[j]:4);
readln;
end.
Câu 5:
uses crt;
var a,vt:array[1..100]of integer;
n,i,j,tam:integer;
begin
clrscr;
repeat
write('nhap n='); readln(n);
if (n<=0) or (n>100) then writeln('ban da nhap sai, yeu cau ban nhap lai');
until (0<n) and (n<=100);
for i:=1 to n do
begin
repeat
write('a[',i,']='); readln(a[i]);
if abs(a[i])>=1000 then writeln('vui long nhap so co gia tri tuyet doi nho hon 1000');
until abs(a[i])<1000;
end;
{--------------------------xu-ly-----------------------------}
for i:=1 to n-1 do
for j:=i+1 to n do
if a[i]<a[j] then
begin
tam:=a[i];
a[i]:=a[j];
a[j]:=tam;
end;
writeln('day so giam dan la: ');
for i:=1 to n do
write(a[i]:4);
readln;
end.
uses crt;
var a:array[1..200]of integer;
n,i,k,t,t1:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
write('Nhap k='); readln(k);
t:=0;
for i:=1 to n do
if a[i] mod 2<>0 then t:=t+a[i];
t1:=0;
for i:=1 to n do
if a[i] mod k=0 then t1:=t1+a[i];
writeln('Tong cac phan tu le la: ',t);
writeln('Tong cac phan tu la boi cua ',k,' la: ',t1);
readln;
end.
Bài 2:
#include <bits/stdc++.h>
using namespace std;
long long a[1000],i,n,ln,nn;
int main()
{
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
for (i=1; i<=n; i++) cout<<a[i]<<" ";
cout<<endl;
ln=a[1];
nn=a[1];
for (i=2; i<=n; i++)
{
ln=max(ln,a[i]);
nn=min(nn,a[i]);
}
cout<<ln<<" "<<nn;
}
uses crt;
var a:array[1..199]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;
{----------------------------xu-ly-------------------------------}
min:=a[1];
for i:=1 to n do
if min>a[i] then min:=a[i];
writeln(min);
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long a[100],n,i,t,t1,dem,dem1;
//chuongtrinhcon
bool ktnt(long long x)
{
if (x<=1) return(false);
for (int i=2; i*i<=x; i++)
if (x%i==0) return(false);
return true;
}
//chuongtrinhchinh
int main()
{
cin>>n;
for (i=1; i<=n; i++)
{
cin>>a[i];
}
for (i=1; i<=n; i++) cout<<a[i]<<" ";
cout<<endl;
t=0;
for (i=1; i<=n; i++) if (a[i]%2==0) t=t+a[i];
cout<<t<<endl;
dem=0;
for (i=1; i<=n; i++) if (a[i]%3==0) dem++;
cout<<dem<<" ";
t1=0;
dem1=0;
for (i=1; i<=n; i++)
if (a[i]%2!=0)
{
t1+=a[i];
dem1++;
}
cout<<fixed<<setprecision(2)<<(t1*1.0)/(dem1*1.0)<<endl;
for (i=1; i<=n; i++)
if (ktnt(a[i])==true) cout<<a[i]<<" ";
return 0;
}
uses crt;
var a:array[1..199]of integer;
n,i,t:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('a[',i,']='); readln(a[i]);
end;
{----------------------------------cau-1--------------------------------}
t:=0;
for i:=1 to n do
if a[i] mod 2=1 then t:=t+a[i];
writeln('tong cac phan tu le trong mang la: ',t);
{---------------------------------cau-2------------------------------}
writeln('cac phan tu vua nhap co chi so chan la: ');
for i:=1 to n do
if i mod 2=0 then write(a[i]:4);
readln;
end.
Mình cảm ơn!!