C Language Nested Loops Set 15

Get the following output:

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1

Source code: Using for loop

#include<stdio.h>
int main()
{
	int i,j;
	for(i=1;i<=5;i++)
	{
		for(j=1;j<=i;j++)
		{
			printf("%d ",j);
		}
		printf("\n");
	}
	for(i=5;i>=1;i--)
	{
		for(j=1;j<=i;j++)
		{
			printf("%d ",j);
		}
		printf("\n");
	}
	return(0);
}

Source code: Using while loop

#include<stdio.h>
int main()
{
	int i=1,j;
	while(i<=5)
	{
		j=1;
		while(j<=i)
		{
			printf("%d ",j);
			j++;
		}
		printf("\n");
		i++;
	}
	i=5;
	while(i>=1)
	{
		j=1;
		while(j<=i)
		{
			printf("%d ",j);
			j++;
		}
		printf("\n");
		i--;
	}
	return(0);
}

Get the following output:

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1

Source code: Using for loop

#include<stdio.h>
int main()
{
	int i,j;
	for(i=1;i<=5;i++)
	{
		for(j=1;j<=i;j++)
		{
			printf("%d ",j);
		}
		printf("\n");
	}
	for(i=4;i>=1;i--)
	{
		for(j=1;j<=i;j++)
		{
			printf("%d ",j);
		}
		printf("\n");
	}
	return(0);
}

Source code: Using while loop

#include<stdio.h>
int main()
{
	int i=1,j;
	while(i<=5)
	{
		j=1;
		while(j<=i)
		{
			printf("%d ",j);
			j++;
		}
		printf("\n");
		i++;
	}
	i=4;
	while(i>=1)
	{
		j=1;
		while(j<=i)
		{
			printf("%d ",j);
			j++;
		}
		printf("\n");
		i--;
	}
	return(0);
}

Get the following output:

2
2 4
2 4 6
2 4 6 8
2 4 6 8 10
2 4 6 8
2 4 6
2 4
2

Source code: Using for loop

#include<stdio.h>
int main()
{
	int i,j;
	for(i=1;i<=5;i++)
	{
		for(j=1;j<=i;j++)
		{
			printf("%d ",j*2);
		}
		printf("\n");
	}
	for(i=4;i>=1;i--)
	{
		for(j=1;j<=i;j++)
		{
			printf("%d ",j*2);
		}
		printf("\n");
	}
	return(0);
}

Source code: Using while loop

#include<stdio.h>
int main()
{
	int i=1,j;
	while(i<=5)
	{
		j=1;
		while(j<=i)
		{
			printf("%d ",j*2);
			j++;
		}
		printf("\n");
		i++;
	}
	i=4;
	while(i>=1)
	{
		j=1;
		while(j<=i)
		{
			printf("%d ",j*2);
			j++;
		}
		printf("\n");
		i--;
	}
	return(0);
}