87 lines
1.2 KiB
C
87 lines
1.2 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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int
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output_whitespace(
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int length
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)
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{
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int i;
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for ( i = 0 ; i < length ; i++ ) {
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printf(" ");
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}
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return 0;
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}
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int
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output_diamond_line(
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int diamond_size,
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int current_line
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)
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{
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int i;
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int j;
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output_whitespace(diamond_size - current_line);
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for ( i = 1 ; i < current_line ; i++ ) {
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printf("%d", i);
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}
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for ( i = 0 ; i < current_line ; i++ ) {
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printf("%d", current_line - i);
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}
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printf("\n");
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return 0;
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}
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int
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output_diamond(
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int diamond_size
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)
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{
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int i;
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int j;
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for ( i = 0 ; i < diamond_size; i++ ) {
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output_diamond_line(diamond_size, i);
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}
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for ( j = diamond_size ; j > 0 ; j-- ) {
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output_diamond_line(diamond_size, j);
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}
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return 0;
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}
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int
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main(
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int argc,
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char *argv[]
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)
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{
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int diamond_size;
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if (argc < 2)
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{
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printf("Invalid command line arguments.\n");
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return -1;
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}
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diamond_size = atoi(argv[1]);
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if (diamond_size < 1 || diamond_size > 9)
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{
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printf("Can not create diamond (s: %d).\n", diamond_size);
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return -1;
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}
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output_diamond(diamond_size);
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return 0;
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}
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