Some Pattern's in C

1). Write a C program to print the following pattern:

         *
      *  *
   *  *  *
*  *  *  *

Program:

/* This is a simple mirror-image of a right angle triangle */

#include 
int main() {
 char prnt = '*';
 int i, j, nos = 4, s;
 for (i = 1; i <= 5; i++) {
for (s = nos; s >= 1; s--) {  // Spacing factor
   printf("  ");
  }
  for (j = 1; j <= i; j++) {
   printf("%2c", prnt);
  }
  printf("\n");
  --nos;   // Controls the spacing factor
 }
 return 0;
}

Write C program to print the following pattern:

*                   *
* * *           * * *
* * * * *   * * * * *
* * * * * * * * * * *

Program:

#include
int main() {
 char prnt = '*';
 int i, j, k, s, c = 1, nos = 9;
 for (i = 1; c <= 4; i++) {
     // As we want to print the columns in odd sequence viz. 1,3,5,.etc
  if ((i % 2) != 0) {
   for (j = 1; j <= i; j++) {
 printf("%2c", prnt);
}
for (s = nos; s >= 1; s--) { //The spacing factor
    if (c == 4 && s == 1) {
     break;
    }
    printf("  ");
   }
   for (k = 1; k <= i; k++) {
    if (c == 4 && k == 5) {
     break;
    }
    printf("%2c", prnt);
   }
   printf("\n");
   nos = nos - 4;  // controls the spacing factor
   ++c;
  }
 }
 return 0;
}

Write C program to print the following pattern:

*                         *
   *                   *
*     *             *     *
   *     *       *     *
*     *      *      *     *
   *     *       *     *
*     *             *     *
   *                   *
*                         *

Program:

#include
int main() {
 char prnt = '*';
 int i, j, k, s, p, r, nos = 7;

 for (i = 1; i <= 5; i++) {
  for (j = 1; j <= i; j++) {
 if ((i % 2) != 0 && (j % 2) != 0) {
printf("%3c", prnt);
}
else if ((i % 2) == 0 && (j % 2) == 0) {
printf("%3c", prnt);
}
else {
printf("   ");
}
}
for (s = nos; s >= 1; s--) {  // for the spacing factor
   printf("   ");
  }
  for (k = 1; k <= i; k++) { //Joining seperate figures
if (i == 5 && k == 1) {
 continue;
}
if ((k % 2) != 0) {
printf("%3c", prnt);
}
else {
printf("   ");
}
}
printf("\n");
nos = nos - 2;   // space control
}  

nos = 1; // remaining half..

for (p = 4; p >= 1; p--)

{

for (r = 1; r <= p; r++)

{

if ((p % 2) != 0 && (r % 2) != 0)

{

printf("%3c", prnt);

}

else if ((p % 2) == 0 && (r % 2) == 0)

{

printf("%3c", prnt);

}

else

{

printf(" ");

}

}

for (s = nos; s >= 1; s--)

{

printf(" ");

} 

 for (k = 1; k <= p; k++)

{  

if ((k % 2) != 0)

 {

printf("%3c", prnt);

}

else

 {   

 printf(" ");

}

} 

 nos = nos + 2; // space control

printf("\n");

}

return 0;

}