How to use nested loops in C ?

[binarylife]

Hi
I am trying to output the following

1
22
333
4444
55555


...................
I've done this so far , and i don't know how to continue .



#include <stdio.h>
#include <stdlib.h>

int main()
{
int i,j;

for (i=1;i<6;i++)
{

for(j=1;j<i;j++)
printf("%d\n",j);

}

return 0;
}

any help please?

[trent.josephsen]

How many times will the outer loop run?

[Queue29]

How many times will the inner loop run?

[binarylife]

I know outer loop must be i<6, but inner I don't know.
I need the output just to be like this :
1
22
333
4444
55555
........
and now I edited the code.
it gives me this output

2
3
3
4
4
4
5
5
5
5

[Arndt]

I know outer loop must be i<6, but inner I don't know.
I need the output just to be like this :
1
22
333
4444
55555
........
and now I edited the code.
it gives me this output

2
3
3
4
4
4
5
5
5
5

Obviously you emit newlines too often. Add a test to only emit newlines when appropriate. After that, you seem to be almost there; there is just some +1 and -1 here and there.

[dwhitney67]

Some other hints...

Think of the outer loop as a counter; that is, the number of lines of data that you want to emit. Typically in C, a counter goes from 0 to less than N.

As for your inner loop, this will be used exclusively for the output you want to generate. If you proceed with the same notion of utilizing a counter, then you will want to go from 0 to less than some value, which in your case, is relative to your outer loop's counter. And as Arndt suggested, you may need to consider adding 1 to your value(s) as necessary.

[binarylife]

Thanks all

this is the final solution :
[



#include <stdio.h>
#include <stdlib.h>

int main()
{
int i,j;

for (i=1;i<6;i++)
{


for(j=0;j<i;j++){
printf("%d",i);
}
printf("\n");
}


return 0;
}

[Arndt]

Thanks all

this is the final solution :
[



#include <stdio.h>
#include <stdlib.h>

int main()
{
int i,j;

for (i=1;i<6;i++)
{


for(j=0;j<i;j++){
printf("%d",i);
}
printf("\n");
}


return 0;
}




All you need now is indenting your code reasonably.

[KdotJ]

All you need now is indenting your code reasonably.

+1
I really do believe that good indentation and consistent style does help a person learn programming easier.

[r-senior]

+2 ... It's no more difficult than sloppy layout. A good habit that pays off in the long run.

Part of it could just be the old tab/space chestnut of course.