Sugestões de solução

#include <stdio.h>
#include <stdlib.h>

int main()
{ int i=1;

  while(i<=100)
     printf("Loop do while = %d\n",i++);
 
  i=1;
  printf("\n\n");
  getch();
  do
     printf("Loop do do-while = %d\n",i++);
  while(i<=100);
  printf("\n\n");
  getch();
  for(i=1;i<=100;i++)
     printf("Loop do for = %d\n",i);
  
  return 0;
}