Nhập vào một số nguyên và đưa ra dãy số ngược lại. Vd: 1234 -> 4321
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
uses crt;
var a:array[1..255]of integer;
i,n,k,kt: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);
kt:=0;
for i:=1 to n do
if a[i]=k then kt:=1;
if kt=0 then writeln(k,' khong co trong day')
else writeln(k,' co trong day');
readln;
end.
\(\dfrac{s}{13}=\dfrac{2s}{3-vn}+\dfrac{2s}{3+vn}\)
\(\dfrac{s}{13}=\dfrac{2s\left(3+vn\right)+2s\left(3-vn\right)}{9-vn^2}\)
\(\dfrac{s}{13}=\dfrac{12s}{9-vn^2}\)
\(s\left(9-vn^2\right)=12s\cdot13\)
\(s\left(9-vn^2\right)=156s\)
\(9-vn^2=156\)
\(vn^2=-147\)
uses crt;
var a,vtmax,vtmin:array[1..100]of integer;
n,i,max,min,dem,t,dem1,t1,dem2,t2,dem3,t3,dem4,t4,k: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];
for i:=1 to n do
if max<a[i] then max:=a[i];
writeln('So lon nhat trong day la: ',max);
dem:=0;
t:=0;
for i:=1 to n do
if max=a[i] then
begin
inc(dem);
t:=t+a[i];
vtmax[dem]:=i;
end;
if dem>1 then
begin
writeln('Tong cac so max la: ',t);
writeln('Cac vi tri co so max la: ');
for i:=1 to dem do
write(vtmax[i]:4);
end;
min:=a[1];
for i:=1 to n do
if min>a[i] then min:=a[i];
writeln('So nho nhat trong day la: ',min);
dem1:=0;
t1:=0;
for i:=1 to n do
if min=a[i] then
begin
inc(dem1);
t1:=t1+a[i];
vtmin[dem1]:=i;
end;
if dem1>1 then
begin
writeln('Tong cac so min la: ',t1);
writeln('Cac vi tri co so min la: ');
for i:=1 to dem1 do
write(vtmin[i]:4);
end;
write('Nhap k='); readln(k);
dem2:=0;
t2:=0;
for i:=1 to n do
if (i mod 2=0) and (a[i] mod k=0) then
begin
dem2:=dem2+1;
t2:=t2+a[i];
end;
writeln('So phan tu o vi tri chan trong day la boi cua ',k,' la: ',dem2);
writeln('Tong cac so o vi tri chan trong day la boi cua ',k,' la: ',t2);
dem3:=0;
t3:=0;
for i:=1 to n do
if (i mod 2=1) and (k mod a[i]=0) then
begin
inc(dem3);
t3:=t3+a[i];
end;
writeln('So phan tu o vi tri le trong day la uoc cua ',k,' la: ',dem3);
writeln('Tong cac so o vi tri le trong day la uoc cua ',k,' la: ',t3);
dem4:=0;
t4:=0;
for i:=1 to n do
if (a[i]+k=1) or (a[i]=k+1) then
begin
inc(dem4);
t4:=t4+a[i];
end;
writeln('So phan tu la anh em cua ',k,' trong day la: ',dem4);
writeln('Tong cac phan tu la anh em cua ',k,' trong day la: ',t4);
readln;
end.
Mình dùng C++ nên div = /; mod = % nha bn!
#include <bits/stdc++.h>
using namespace std;
int main() {
int a, S;
cin >> a;
S=0;
while(a>0)
{
S+=a%10, a=a/10;
}
cout << S << endl;
return 0;
}
Chúc bn học tốt!
Câu 1:
uses crt;
var a:array[1..100]of integer;
i,n:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
for i:=1 to n do
if a[i] mod 3=0 then write(a[i]:4);
readln;
end.
Câu 2:
uses crt;
var a:array[1..100]of integer;
i,n:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
writeln('Cac phan tu chan la: ');
for i:=1 to n do
if a[i] mod 2=0 then write(a[i]:4);
writeln;
writeln('Cac phan tu co chi so le la: ');
for i:=1 to n do
if i mod 2=1 then write(a[i]:4);
readln;
end.
uses crt;
var a:array[1..100]of integer;
i,n,t:integer;
begin
clrscr;
readln(n);
for i:=1 to n do
readln(a[i]);
for i:=1 to n do
write(a[i]:4);
writeln;
t:=0;
for i:=1 to n do
t:=t+a[i];
writeln(t);
writeln(t/n:4:2);
readln;
end.
Tham Khảo:
uses crt;
var a:array[1..100]of integer;
i,n,j,tam:integer;
begin
clrscr;
write('Nhap n='); readln(n);</p><p>for i:=1 to n do</p><p> begin</p><p>write('A[',i,']='); readln(a[i]);
end;
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;
for i:=1 to n do
write(a[i]:4);
readln;
end.
var n,i,dem,t:integer;
a:array[1..50] of integer;
begin
dem:=0;
t:=0;
read(n);
for i:=1 to n do
read(a[i]);
for i:=n downto 1 do
write(a[i]);
writeln;
for i:=1 to n do
if (a[i] mod 2 = 0) then dem:=dem+1;
if a[i]<a[i-1] then t:=t+1;
writeln(dem);
if t=0 then write('Co lap thanh cap so +')
else write('Ko the lap thanh cap so +');
readln;
end.
uses crt;
var x,y:integer;
begin
clrscr;
write('Nhap x='); readln(x);
write('Nhap y='); readln(y);
if x>y then writeln(x-y)
else writeln(x+y);
readln;
end.
uses crt;
var x,y:integer;
begin
clrscr;
write('Nhap x='); readln(x);
write('Nhap y='); readln(y);
if x>y then writeln(x-y)
else writeln(x+y);
readln;
end.