Where is error?

Question

#include <iostream>
using namespace std;

int main();
int a=1;
{

for (int i=1; i<=3; i++);
{
for (int j=1; j<=5; j++);
{
cout<<a++
}
printf("\n");
}
getch()
return 0;
}

Answer 1

https://code.sololearn.com/cr9vObVx6tNA/#

you had a few errors...
i guess getch() does not work on sololearn.

Answer 2

It should be:

#include <iostream>
using namespace std;

int main(){
int a=1;

for (int i=1; i<=3; i++){
for (int j=1; j<=5; j++){
cout<<a++;
}
printf("\n");
}
getch();
return 0;
}

Answer 3

thank you for all answer.Im delete getch().its true.

12345
678910
1112131415
if i wanna start 5. for ex.
678910
1112131415
1617181920
how is i made?

Answer 4

To start counting from 6,
just start variable 'a' at 6:

int a = 6;

Answer 5

thank you very much.