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Program HOC24;
var d,i,n: integer;
a: array[1..1000] of integer;
t: longint;
function nt(x: longint): boolean;
var j: longint;
begin
nt:=true;
if (x=2) or (x=3) then exit;
nt:=false;
if (x=1) or (x mod 2=0) or (x mod 3=0) then exit;
j:=5;
while j<=trunc(sqrt(x)) do
begin
if (x mod j=0) or (x mod (j+2)=0) then exit;
j:=j+6;
end;
nt:=true;
end;
begin
write('Nhap N: '); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
d:=0; t:=0;
for i:=1 to n do
if nt(a[i]) then
begin
d:=d+1;
t:=t+a[i];
end;
writeln('Co ',d,' so nguyen to trong day');
write('Tong cac so nguyen to trong day la: ',t);
readln
end.
uses crt;
var a:array[1..1000]of integer;
i,n,dem,t,j,kt:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
dem:=0;
t:=0;
for i:=1 to n do
if a[i]>1 then
begin
kt:=0;
for j:=2 to a[i]-1 do
if a[i] mod j=0 then kt:=1;
if kt=0 then
begin
inc(dem);
t:=t+a[i];
end;
end;
writeln('So luong so nguyen to la: ',dem);
writeln('Tong cac so nguyen to la: ',t);
readln;
end.
uses crt;
var a:array[1..1000]of integer;
i,n,k,dem: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);
for i:=1 to n do
if a[i]=k then
begin
writeln(i);
break;
end;
dem:=0;
for i:=1 to n do
if a[i]=k then inc(dem);
if dem>0 then writeln('Co ',dem,' phan tu bang ',k)
else writeln('Khong co phan tu nao bang ',k);
readln;
end.
a:
#include <bits/stdc++.h>
using namespace std;
long long n,i,a[10000];
int main()
{
cin>>n;
for (i=1;i<=n; i++)
cin>>a[i];
for (i=1; i<=n; i++)
cout<<a[i]<<" ";
return 0;
}
var a:array[1..100] of integer;
i,n,S,d:byte;
begin
write(' n = '); readln(n);
for i:=1 to n do begin
write('A[',i,'] = ');
readln(A[i]);
end;
d:=0; S:=0;
for i:=1 to n do if A[i] mod 2 = 0 then begin
d:=d+1;
S:=S+A[i];
end;
write('Dãy có ',d,' phần tử là số chẵn và tổng của chúng là : S = ',S);
readln
end.
uses crt;
var a:array[1..100]of integer;
i,n,dem,k: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);
dem:=0;
for i:=1 to n do
if a[i]=k then inc(dem);
writeln('Trong day co ',dem,' phan tu co gia tri bang ',k);
readln;
end.
Program HOC24;
var i,d,n: integer;
a: array[1..32000] of integer;
begin
write('Nhap N: '); readln(n);
for i:=1 to n do
begin
write('a[',i,']='); readln(a[i]);
end;
write('Nhap k: '); readln(k);
d:=0;
for i:=1 to n do if a[i]=k then d:=d+1;
write('Co ',d,' phan tu bang ',k);
readln
end.
Câu 1:
program mangsonguyen;
var
a: array[1..100] of integer;
i, n: integer;
begin
writeln('Nhap so phan tu trong mang: ');
readln(n);
writeln('Nhap cac phan tu cua mang: ');
for i := 1 to n do
readln(a[i]);
writeln('Mang vua nhap la:');
for i := 1 to n do
write(a[i], ' ');
end.
Câu 2:
program trungbinhcong;
var
a: array[1..100] of integer;
i, n, k, sum: integer;
avg: real;
begin
writeln('Nhap so phan tu trong mang: ');
readln(n);
writeln('Nhap cac phan tu cua mang: ');
for i := 1 to n do
readln(a[i]);
writeln('Nhap so k: ');
readln(k);
sum := 0;
for i := 1 to n do
begin
if a[i] <= k then
sum := sum + a[i];
end;
if sum > 0 then
begin
avg := sum / n;
writeln('Trung binh cong cac phan tu co gia tri <= ', k, ' la: ', avg:0:2);
end
else
begin
writeln('Khong co phan tu nao co gia tri <= ', k);
end;
end.
Câu 3:
program DemSoNguyenTo;
var
a: array [1..100] of integer;
i, j, n, count: integer;
laSoNguyenTo: boolean;
begin
write('Nhap so phan tu cua mang: ');
readln(n);
write('Nhap cac phan tu cua mang: ');
for i := 1 to n do
readln(a[i]);
count := 0;
writeln('Cac so nguyen to trong mang la: ');
for i := 1 to n do
begin
laSoNguyenTo := true;
for j := 2 to (a[i] div 2) do
begin
if (a[i] mod j = 0) then
begin
laSoNguyenTo := false;
break;
end;
end;
if laSoNguyenTo and (a[i] > 1) then
begin
writeln(a[i]);
count := count + 1;
end;
end;
writeln('Tong so cac so nguyen to la: ', count);
readln;
end.
uses crt;
var a:array[1..100]of integer;
i,n,k,dem:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
readln(k);
dem:=0;
for i:=1 to n do
if a[i]>k then inc(dem);
write(dem);
readln;
end.
Bài 1:
Program HOC24;
var i,n,d : byte;
t: integer;
begin
write('Nhap N: '); readln(n);
for i:=1 to n do
begin
write('Nhap phan tu thu ',i,' : '); readln(a[i]);
end;
for i:=1 to n do if (a[i] mod 3=0) and (a[i] mod 5=0) then
begin
d:=d+1;
t:=t+a[i];
end;
writeln('Co ',d,' phan tu la boi cua 3 va 5');
write('Tong la: ',t);
readln
end.
Bài 2:
Program HOC24;
var i,n,k : byte;
begin
write('Nhap N: '); readln(n);
for i:=1 to n do
begin
write('Nhap phan tu thu ',i,' : '); readln(a[i]);
end;
write('Nhap k: '); readln(k);
for i:=1 to n do if a[i]=k then d:=d+1;
writeln('Co ',d,' phan tu bang ',k);
Write('Cac chi so do la: ');
for i:=1 to n do if a[i]=k then write(i,' ');
readln
end.