C > Beginners Lab Assignments

Pyramid of Numbers

Pyramid of Numbers

#include <stdio.h>
 #include <conio.h>

 int pyramid( int length )
 {
	int line = 1;
	int j = 1, i, k = length;

	while( length-- ) {

		if( j == 1 ) {
			for( i = 1; i <= length + 5; i++ )
				printf( " " );
			printf( "%d
", j++ );
			k--;
			line++;
		}

		else if( i % 2 ){
			for( i = 1; i <= length + 5; i++ )
				printf( " " );
			for( i = 1; i <= line; i++ )
				printf( "%d ", ( j++ % 10 ) );
			printf( "
" );
			line++;
			k--;
		}

		else {
			for( i = 1; i <= length + 5    ; i++ )
				printf( " " );
			for( i = 1; i <= line; i++ )
				printf( "%d ", ( j++ % 10 ) );
			printf( "
" );
			line++;
			k--;
		}
	}

    return 0;
 }

 int main( )
 {
	int length;

	printf( "Enter the list length
" );
	scanf( "%d", &length );

	pyramid( length );
	getch( );
	return 0;
 }