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Bài 1: 

uses crt;

var f:array[1..255]of integer;

i,n,t,kt:integer;

begin

clrscr;

write('Nhap n='); readln(n);

i:=2;

f[1]:=1;

f[2]:=1;

repeat

  i:=i+1;

f[i]:=f[i-1]+f[i-2];

until i=n;

writeln('Day so fibonaci la: ');

for i:=1 to n do

write(f[i]:4);

writeln;

t:=0;

for i:=1 to n do 

  t:=t+f[i];

writeln('Tong cua day la: ',t);

kt:=0;

for i:=2 to trunc(sqrt(t)) do 

  if t mod i=0 then kt:=1;

if (kt=0) and (t>1) then writeln(t,' la so nguyen to')

else writeln(t,' khong la so nguyen to');

readln;

end.

Bài 2: 

uses crt;

var a:array[1..100]of integer;

i,n,max,min,t:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do 

  begin

write('A[',i,']='); readln(a[i]);

end;

max:=a[1];

min:=a[1];

for i:=1 to n do 

begin

if max<a[i] then max:=a[i];

if min>a[i] then min:=a[i];

end;

t:=0;

for i:=1 to n do 

  t:=t+a[i];

writeln('So nho nhat la: ',min);

writeln('So lon nhat la: ',max);

writeln('Trung binh cong cua day so la: ',t/n:4:2);

readln;

end.

uses crt;

var a:array[1..100]of integer;   

i,n,t,t1,t2,t3,min,max:integer;   

kt:boolean;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do 

begin     

write('A[',i,']='); readln(a[i]); 

end;

writeln('Day so ban vua nhap la: ');

for i:=1 to n do 

write(a[i]:4);

writeln;

t:=0;

for i:=1 to n do 

t:=t+a[i];

kt:=true;

for i:=2 to trunc(sqrt(t)) do 

if t mod i=0 then     

begin       

kt:=false;       

break;     

end;

writeln('Tong cua day so la: ',t);

if (kt=true) and (t>1) then writeln(t,' la so nguyen to')

else writeln(t,' khong la so nguyen to');

writeln('Cac so o vi tri le cua day so la: ');

t1:=0;

for i:=1 to n do 

if i mod 2=1 then     

begin       

write(a[i]:4);       

t1:=t1+a[i];     

end;

writeln;

writeln('Tong cac so o vi tri le cua day so la: ',t1);

if trunc(sqrt(t1))=sqrt(t1) then writeln(t1,' la so chinh phuong')

else writeln(t1,' khong la so chinh phuong');

writeln('Cac so o vi tri chan cua day so la: ');

t2:=0;

for i:=1 to n do 

if i mod 2=0 then     

begin       

write(a[i]:4);       

t2:=t2+a[i];     

end;

writeln;

writeln('Tong cac so o vi tri chan cua day so la: ',t2);

t3:=0;

for i:=1 to t2 do 

if t2 mod i=0 then t3:=t3+i;

if t3=t2 then writeln(t2,' la so hoan hao')

else writeln(t2,' khong la so hoan hao');

max:=a[1];

min:=a[1];

for i:=1 to n do 

begin     

if max<a[i] then max:=a[i];     

if min>a[i] then min:=a[i]; 

end;

writeln('So lon nhat cua day la: ',max);

writeln('So nho nhat cua day la: ',min);

writeln('Tong cua so lon nhat va so nho nhat la: ',max+min);

readln;

end.

uses crt;

var a:array[1..100]of integer;

n,i,t,kt,j,t1,t2,t3,max,min:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do 

begin

write('A[',i,']='); readln(a[i]);

end;

writeln('Day so ban vua nhap la: ');

for i:=1 to n do 

  write(a[i]:4);

writeln;

t:=0;

for i:=1 to n do 

  t:=t+a[i];

writeln('Tong cua day so vua nhap la: ',t);

kt:=0;

for i:=2 to trunc(sqrt(t)) do 

  if t mod i=0 then

begin

kt:=1;

break;

end;

if (kt=0) and (t>1) then writeln(t,' la so nguyen to');

else writeln(t,' khong la so nguyen to');

t1:=0;

writeln('Cac so o vi tri le cua day la: ');

for i:=1 to n do 

  if i mod 2=1 then 

begin

write(a[i]:4);

t1:=t1+a[i];

end;

writeln;

writeln('Tong cac so o vi tri le la: ',t1);

if trunc(sqrt(t1))=sqrt(t1) then writeln(t1,' la so chinh phuong')

else writeln(t1,' khong la so chinh phuong');

t2:=0;

writeln('Cac so o vi tri chan la: ');

for i:=1 to n do 

  if i mod 2=0 then 

begin

write(a[i]:4);

t2:=t2+a[i];

end;

writeln;

writeln('Tong cac so o vi tri chan la: ',t2);

t3:=0;

for i:=1 to t2 do 

if t2 mod i=0 then t3:=t3+i;

if t3=t2 then writeln(t2,' la so hoan hao')

else writeln(t2,' khong la so hoan hao');

max:=a[1];

min:=a[1];

for i:=1 to n do 

begin

if max<a[i] then max:=a[i];

if min>a[i] then min:=a[i];

end;

writeln('Gia tri lon nhat la: ',max);

writeln('Gia tri nho nhat la: ',min);

writeln('Tong cua hai so lon nhat va nho nhat la: ',max+min);

readln;

end.

30 tháng 1 2021

cái dong đầu bị lỗi chỗ a[i] á xem lại hộ mình với

5 tháng 4 2021

Bài 1:

program in_phan_tu;

uses crt;

var n,i:longint;

a:array[1..100] of longint;

begin

clrscr;

write('nhap so n:');readln(n);

for i:=1 to n do

begin

write('nhap phan tu a[',i,']:');readln(a[i]);

end;

for i:=1 to n do

write(a[i]:3);

readln;

end.

Bài 2:

program tong_phan_tu;

uses crt;

var n,i,tong:longint;

a:array[1..100] of longint;

begin

clrscr;

write('nhap so n:');readln(n);

for i:=1 to n do

begin

write('nhap phan tu a[',i,']:');readln(a[i]);

end;

tong:=0;

for i:=1 to n do

tong:=tong+a[i];

writeln('tong cua day la:');

readln;

end.

Bài 3:

program tong_phan_tu_chan;

uses crt;

var n,i,tong:longint;

a:array[1..100] of longint;

begin

clrscr;

write('nhap so n:');readln(n);

for i:=1 to n do

begin

write('nhap phan tu a[',i,']:');readln(a[i]);

end;

tong:=0;

for i:=1 to n do

if a[i] mod 2=0 then tong:=tong+a[i];

writeln('tong cua day la:');

readln;

end.

Câu 1: 

uses crt;

var a:array[1..100]of integer;

i,n:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do 

  begin

write('A[',i,']='); readln(a[i]);

end;

for i:=1 to n do 

  write(a[i]:4);

readln;

end.

6 tháng 4 2023

Bài 1:

Program HOC24;

var a: array[1..1000] of integer;

i,n,d: integer;

begin

write('Nhap so phan tu: '); readln(n);

for i:=1 to n do 

begin

write('Nhap so thu ',i,': '); readln(a[i]);

end;

for i:=1 to n do if (a[i]<0) and (a[i] mod 2=0) then d:=d+1;

write('Co ',d,' so nguyen am chan trong day so');

readln

end.

6 tháng 4 2023

Bài 2:

Program HOC24;

var a: array[1..1000] of integer;

i,n: integer;

t: longint;

begin

write('Nhap so phan tu: '); readln(n);

for i:=1 to n do 

begin

write('Nhap so thu ',i,': '); readln(a[i]);

end;

t:=0;

for i:=1 to n do if a[i] mod 5=0 then t:=t+a[i];

write(Tong la: ',t);

readln

end.

13 tháng 12 2020

uses crt;

var a:array[1..100]of integer;

i,n,t,kt,j:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do

begin

write('A[',i,']='); readln(a[i]);

end;

writeln('Cac so vua nhap la: ');

for i:=1 to n do 

  write(a[i]:4);

writeln;

t:=0;

for i:=1 to n do 

  t:=t+a[i];

writeln('Tong cua day so la: ',t);

kt:=0;

for j:=2 to trunc(sqrt(t)) do 

  if t mod j=0 then 

    begin

kt:=1;

break;

end;

if kt=0 then writeln(t,' la so nguyen to')

else writeln(t,' khong la so nguyen to');

readln;

end.

13 tháng 12 2020

Cậu ơi sai khúc write('A[',i,']='); readln(a[i]); rồi nó cứ bị sao sao á

 

13 tháng 12 2020

uses crt;

var a:array[1..100]of integer;

i,n,t,kt:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do

begin

write('A[',i,']='); readln(a[i]);

end;

writeln('Cac so ban vua nhap la: ');

for i:=1 to n do 

write(a[i]:4);

writeln;

t:=0;

for i:=1 to n do

t:=t+a[i];

writeln('Tong cac so vua nhap la: ',t);

if t>=2 then 

begin

kt:=0;

for i:=2 to trunc(sqrt(t)) do 

  if t mod i=0 then 

begin

kt:=1;

break;

end;

 if kt=0 then writeln(t,' la so nguyen to')

else writeln(t,' khong la so nguyen to');

end

else writeln(t,' khong la so nguyen to');

readln;

end.

4 tháng 5 2023

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.