Thread: Flowchart Question

Hello Everyone,

I am trying to flowchart the following code but I am getting stuck on the nested loops. Can someone help me understand how the code flows.

Code:

#include<stdio.h>
#define SIZE 10

int main()
{
    
    int a[ SIZE ] = { 10, 9, 8, 7 , 6, 5, 4, 3, 2, 1 }; /* Use initializer list to initialize array a */
    int counter; /* Variable in which counter will be stored */
    int pass; /* Variable in which pass will be stored */
    int hold; /* Variable in which hold will be stored */
    int swap; /* Variable in which swap will be stored */
    
    printf( "Data items in original order\n" );
    
    /* Output original array */
    for( counter = 0; counter < SIZE; counter ++ ) {
        printf( "%4d", a[ counter ] );
    } /* End for */
    
    printf( "\n\n" );
    
    /* Bubble sort */
    for( pass = 1; pass < SIZE; pass ++ ) {
    
        swap = 0;
        
        /* Loop to control number of comparisions per pass */
        for( counter = 0; counter < SIZE - 1; counter ++ ) {
        
                /* Compare adjacent elements and swap them if first
                   element is greater than second element */
                if( a[ counter ] > a[ counter + 1 ] ) {
                   swap = 1;
                   hold = a[ counter ];
                   a[ counter ] = a[ counter + 1 ];
                   a[ counter + 1 ] = hold;
                } /* End if */
        } /* End for */
                        
        printf( "Pass %d: ", pass );
        
        /* Loop to control if a swap has been made per pass */
        for( counter = 0; counter <= SIZE - pass; counter ++ )
                printf( " %d", a[ counter ]);
                printf( "\n" );
                if( swap != 1 )
                      break;
        
    } /* End for */
    
    printf( "\nData items in ascending order\n" );
    
    /* Output sort array */
    for( counter = 0; counter < SIZE; counter ++ ) {
        printf( "%4d", a[ counter ] );
    } /* End for */
    
    printf( "\n" );
    
    return 0; /* Indicates successful termination */
    
}

Thanks in advance

DMKanz07