ct C++ đúng ko ạ

#include <bits/stdc++.h>

using namespace std;

int n,i;

int main()

{

cin>>n;

i=1;

do 

{

if (i%7==0) cout<<i<<" ";

i++; 

}

while (i==n);

return 0;

}

Giúp tui ik mn =(( tui bị cô chửi tui buồn lắm

uses crt;

var a,b,c,kt:integer;

begin

clrscr;

readln(a,b,c);

if (a+b>c) and (a+c>b) and (b+c>a) then

begin

kt:=0;

if (sqr(a)=sqr(b)+sqr(c)) then kt:=1;

if (sqr(b)=sqr(a)+sqr(c)) then kt:=1;

if (sqr(c)=sqr(a)+sqr(b)) then kt:=1;

if (a=b) and (b<>c) and (a<>c) then kt:=2;

if (a=c) and (a<>b) and (c<>b) then kt:=2;

if (b=c) and (b<>a) and (c<>a) then kt:=2;

if (a=b) and (b=c) then kt:=3;

if kt=0 then write('Tam giac thuong')

else if kt=1 then write('Tam giac vuong')

else if kt=2 then write('Tam giac can')

else if kt=3 then write('Tam giac deu');

end

else writeln('Day khong la ba canh trong mot tam giac');

readln;

end.

Giúp tui ik mà mn xin mn ngừoi đấy =((

uses crt;

var a,b,c,kt:integer;

begin

clrscr;

readln(a,b,c);

if (a+b>c) and (a+c>b) and (b+c>a) then

begin

kt:=0;

if (sqr(a)=sqr(b)+sqr(c)) then kt:=1;

if (sqr(b)=sqr(a)+sqr(c)) then kt:=1;

if (sqr(c)=sqr(a)+sqr(b)) then kt:=1;

if (a=b) and (b<>c) and (a<>c) then kt:=2;

if (a=c) and (a<>b) and (c<>b) then kt:=2;

if (b=c) and (b<>a) and (c<>a) then kt:=2;

if (a=b) and (b=c) then kt:=3;

if kt=0 then write('Tam giac thuong')

else if kt=1 then write('Tam giac vuong')

else if kt=2 then write('Tam giac can')

else if kt=3 then write('Tam giac deu');

end

else writeln('Day khong la ba canh trong mot tam giac');

readln;

end.

#include <bits/stdc++.h>

using namespace std;

long long a,b,c;

int main()

{

cin>>a>>b>>c;

if (a==b && b==c) cout<<3;

else if (a==b && a!=c && b!=c) cout<<2;

else if (b==c && b!=a && c!=a) cout<<2;

else if (a==c && a!=b && c!=b) cout<<2;

else cout<<0;

return 0; 

}

cảm ơn nha

uses crt;

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

n,m,i,t1,t,ln:integer;

begin

clrscr;

readln(n,m);

for i:=1 to n do 

  for j:=1 to m do readln(a[i,j]);

t:=0;

for i:=1 to n do

  for j:=1 to m do 

  t:=t+a[i,j];

writeln(t);

t1:=0;

for i:=1 to n do 

begin

ln:=a[i,1];

for j:=1 to m do 

  if ln<a[i,j] then ln:=a[i,j];

t1:=t1+ln;

end;

writeln(t1);

readln;

end.

#include <bits/stdc++.h>

using namespace std;

long long x;

int main()

{

cin>>x;

int a=x/3600, b=x/60;

cout<<a<<"h<"<<(x-a*3600)/60<<"p"<<(x-a*3600-b*60)<<"s";

return 0;

}

thanh kiu, nhưng int main() lại ở dưới long long hử???