Program that generate a pyramid with asterisks

asterisks.c

#include "stdio.h"

int row;
int column;
int count_char;
int length_rows;
int index_columns;
int length_columns;

void print (int count) {
  for (int i = 0; i < count; i++)
    printf("*");
}

int point_column (int length_columns) {
  return (length_columns - 1) / 2;
}

int main () {
  printf("Enter the total of rows: "); scanf("%d", &length_rows);
  printf("Enter the total of columns: "); scanf("%d", &length_columns);

  if (length_columns % 2 == 0)
    length_columns -= 1;

  index_columns = point_column(length_columns);

  for (row = 0; row < length_rows; row++) {
    for (column = 0; column < length_columns; column++) {

      if (column == index_columns) {
        if (row == 0)
          count_char = row + 1;
        else
          count_char += 2;
        print(count_char);
        index_columns--;
      }
      printf(" ");
    }
    printf("\n");
  }
  return 0;
}

rows must be entered with an odd number to successfully build the pyramid if the program makes it an odd number.