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uses crt;
var a:array[1..100]of integer;
i,n,dem:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
dem:=0;
for i:=1 to n do
if (10<a[i]) and (a[i]<20) then inc(dem);
writeln(dem);
readln;
end.
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.
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;
}
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.
uses crt;
var n,i:integer;
m:real;
begin
clrscr;
repeat
write('Nhap n='); readln(n);
until (1<=n) and (n<=30000);
m:=0;
for i:=1 to n do
m:=m+sqrt(i);
writeln('m=',m:4:2);
readln;
end.
đó là câu trả lời cho dòng 1 đúng không ạ