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2:
uses crt;
var a:array[1..100]of integer;
n,i: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
if a[i]<0 then write(i:4);
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long a[1000],n,i,t;
int main()
{
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
t=0;
for (i=1; i<=n; i++)
if (i%2!=0) t+=a[i]*a[i];
cout<<t<<endl;
for (i=1;i<=n; i++)
if (a[i]<0) cout<<a[i]<<" ";
cout<<endl;
sort(a+1,a+n+1);
for (i=n; i>=1; i--)
cout<<a[i]<<" ";
return 0;
}
câu 1)ar i,max,maxnhi,n:integer;
a:array[1..100] of integer;
begin
repeat
write('n=');readln(n);
until (n>1) and (n<40)
for i:=1 to n do begin
write('So thu ',i,': ');readln(a[i]);
end;
max:=a[1];
for i:=2 to n do
if a[i] > max then max:=a[i];
maxnhi:=a[1];
for i:=1 to n do
if (a[i]>maxnhi) and (a[i]<max) then maxnhi:=a[i];
write(' So lon thu 2 la: ',maxnhi);
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.
var n,i:integer;
s:real;
begin
repeat
write('n=');readln(n);
until (5<n) and (n<10000);
s:=0;
for i:=1 to n do s:=s+i;
write(' Phan a: ',s:0:1);
writeln;
s:=0;
for i:=1 to n do
if i mod 2=0 then s:=s+i;
write(' Phan b: ',s:0:1);
writeln;
for i:=1 to n do
if i mod 2=1 then s:=s+i;
write(' Phan c: ',s:0:1);
writeln;
s:=1;
for i:=1 to n do
if (n>5) and (n<15) then s:=s*i;
write(' Phan d: ',s:0:1);
writeln;
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.
Lời giải:
program hotrotinhoc;
var s,n,m,i: longint;
begin
write('M='); readln(m);
write('N='); readln(n);
s:=0;
for i:=m to n do s:=s+i*i;
write(s);
readln
end.
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