Language: C

#include <stdio.h>

#define ARRAY_MAX 1000000
#define ARRAY_INIT 0
#define DIV_INIT 0
#define LOOP_INIT 0
#define G_MAX 12

void insert_sort( unsigned long *aulW_Dtestcase, unsigned long ulW_Dtc_cnt, unsigned long g );

unsigned long ulG_Csort_cnt = DIV_INIT;

int main( void )
{
	unsigned long ulW_Dtc_cnt;
	unsigned long aulW_Dtestcase[ ARRAY_MAX ] = { ARRAY_INIT };
	unsigned long ulW_Dshell_p;
	unsigned long ulW_Cloop_cnt;
	unsigned long ulW_Cloop_sub_cnt;
	unsigned long ulW_Csort_cnt = DIV_INIT;
	unsigned long ulW_Dm;
	unsigned long aulW_DG[ G_MAX ];
	unsigned long ulW_Dv;
	unsigned long ulW_Dk;

	scanf( "%d", &ulW_Dtc_cnt );
	for( ulW_Cloop_cnt = LOOP_INIT; ulW_Dloop_cnt < ulW_Dtc_cnt; ulW_Cloop_cnt++ ){
		scanf( "%d", &aulW_Dtestcase[ ulW_Cloop_cnt ] );
	}

	ulW_Dm = 1;
	aulW_DG[ 0 ] = 1;
	while( aulW_DG[ ulW_Dm ] * 3 - 1 ] + 1 < ulW_Dtc_cnt ){
		aulW_DG[ ulW_Dm ] = aulW_DG[ ulW_Dm ] * 3 - 1 ] + 1;
		ulW_Dm++;
	}

	for( ulW_Cloop_cnt = LOOP_INIT; ulW_Cloop_cnt < ulW_Dm / 2; ulW_Cloop_cnt++ ){
		ulW_Dv = aulW_DG[ ulW_Dm ];
		aulW_DG[ ulW_Cloop_cnt ] = aulW_DG[ ulW_Dm - 1 - ulW_Cloop_cnt ];
		aulW_DG[ ulW_Dm - 1 - ulW_Cloop_cnt ] = ulW_Dv;
	}

	printf( "%d\n", ulW_Dm );
	for( ulW_Cloop_cnt = LOOP_INIT; ulW_Cloop_cnt < ulW_Dm; ulW_Cloop_cnt++ ){
		if( ulW_Cloop_cnt == ulW_Dm - 1 ){
			printf( "%d\n", aulW_DG[ ulW_Cloop_cnt ] );
		}
		else{
			printf( "%d ", aulW_DG[ ulW_Cloop_cnt ] );
		}
	}

	for( ulW_Cloop_cnt = LOOP_INIT; ulW_Cloop_cnt < ulW_Dm; ulW_Cloop_cnt++){
		for( ulW_Cloop_sub_cnt = aulW_DG[ ulW_Cloop_cnt ]; ulW_Cloop_sub_cnt < ulW_Dtc_cnt; ulW_Cloop_sub_cnt++ ){
			ulW_Dv = aulW_Dtestcase[ ulW_Cloop_sub_cnt ];
			ulW_Dk = ulW_Cloop_sub_cnt - aulW_DG[ ulW_Cloop_cnt ];
			while( ( ulW_Dk >= 0 ) && ( aulW_Dtestcase[ ulW_Dk ] ) ){
				aulW_Dtestcase[ ulW_Dk + aulW_DG[ ulW_Cloop_cnt ] ] = aulW_Dtestcase[ ulW_Dk ];
				ulW_Dk -= aulW_DG[ ulW_Cloop_cnt ];
				ulW_Csort_cnt++;
			}
			aulW_Dtestcase[ ulW_Dk + aulW_DG[ ulW_Cloop_cnt ] ] = ulW_Dv;
		}
	}

	printf( "%d\n", ulW_Csort_cnt );
	for( ulW_Cloop_cnt = LOOP_INIT; ulW_Cloop_cnt < ulW_Dtc_cnt; ulW_Cloop_cnt++ ){
		printf( "%d\n", aulW_Dtestcase[ ulW_Cloop_cnt ] );
	}

	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:27:41: error: 'ulW_Dloop_cnt' undeclared (first use in this function); did you mean 'ulW_Cloop_cnt'?
   27 |         for( ulW_Cloop_cnt = LOOP_INIT; ulW_Dloop_cnt < ulW_Dtc_cnt; ulW_Cloop_cnt++ ){
      |                                         ^~~~~~~~~~~~~
      |                                         ulW_Cloop_cnt
main.c:27:41: note: each undeclared identifier is reported only once for each function it appears in
main.c:33:41: error: expected ')' before ']' token
   33 |         while( aulW_DG[ ulW_Dm ] * 3 - 1 ] + 1 < ulW_Dtc_cnt ){
      |              ~                          ^~
      |                                         )
main.c:33:42: error: expected statement before ']' token
   33 |         while( aulW_DG[ ulW_Dm ] * 3 - 1 ] + 1 < ulW_Dtc_cnt ){
      |                                          ^
main.c:33:61: error: expected ';' before ')' token
   33 |         while( aulW_DG[ ulW_Dm ] * 3 - 1 ] + 1 < ulW_Dtc_cnt ){
      |                                                             ^~
      |                                                             ;
main.c:33:62: error: expected statement before ')' token
   33 |         while( aulW_DG[ ulW_Dm ] * 3 - 1 ] + 1 < ulW_Dtc_cnt ){
      |                                                              ^
main.c:34:62: error: expected ';' before ']' token
   34 |                 aulW_DG[ ulW_Dm ] = aulW_DG[ ulW_Dm ] * 3 - 1 ] + 1;
      |                                                              ^~
      |                                                              ;
main.c:34:63: error: expected statement before ']' token
   34 |                 aulW_DG[ ulW_Dm ] = aulW_DG[ ulW_Dm ] * 3 - 1 ] + 1;
      |                                                               ^