*
* *
* * *
* * * *
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;
}
* *
* * * * * *
* * * * * * * * * *
* * * * * * * * * * *
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;
}
* *
* *
* * * *
* * * *
* * * * *
* * * *
* * * *
* *
* *
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;
}
* * * * *
* * * *
* * *
* *
*
* *
* * *
* * * *
* * * * *
Program:
#include
int main() {
char prnt = '*';
int i, j, s, nos = 0;
for (i = 9; i >= 1; (i = i - 2)) {
for (s = nos; s >= 1; s--) {
printf(" ");
}
for (j = 1; j <= i; j++) {
if ((i % 2) != 0 && (j % 2) != 0) {
printf("%2c", prnt);
} else {
printf(" ");
}
}
printf("\n");
nos++;
}
nos = 3;
for (i = 3; i <= 9; (i = i + 2)) { for (s = nos; s >= 1; s--) {
printf(" ");
}
for (j = 1; j <= i; j++) {
if ((i % 2) != 0 && (j % 2) != 0) {
printf("%2c", prnt);
} else {
printf(" ");
}
}
nos--;
printf("\n");
}
return 0;
}
*
* * *
* * * * *
* * * * * * *
* * * * * * * * *
* * * * * * *
* * * * *
* * *
*
* * *
* * * * *
Program:
#include
int main() {
char prnt = '*';
int i, j, k, s, nos = 4;
for (i = 1; i <= 5; i++) { for (s = nos; s >= 1; s--) {
printf(" ");
}
for (j = 1; j <= i; j++) {
printf("%2c", prnt);
}
for (k = 1; k <= (i - 1); k++) { if (i == 1) { continue; } printf("%2c", prnt); } printf("\n"); nos--; } nos = 1; for (i = 4; i >= 1; i--) {
for (s = nos; s >= 1; s--) {
printf(" ");
}
for (j = 1; j <= i; j++) {
printf("%2c", prnt);
}
for (k = 1; k <= (i - 1); k++) {
printf("%2c", prnt);
}
nos++;
printf("\n");
}
nos = 3;
for (i = 2; i <= 5; i++) { if ((i % 2) != 0) { for (s = nos; s >= 1; s--) {
printf(" ");
}
for (j = 1; j <= i; j++) {
printf("%2c", prnt);
}
}
if ((i % 2) != 0) {
printf("\n");
nos--;
}
}
return 0;
}
*
* *
* * *
* * * *
* * *
* *
*
Program:
/*
This can be seen as two right angle triangles sharing the same base
which is modified by adding few extra shifting spaces
*/
#include
// This function controls the inner loop and the spacing
// factor guided by the outer loop index and the spacing index.
int triangle(int nos, int i) {
char prnt = '*';
int s, j;
for (s = nos; s >= 1; s--) { // Spacing factor
printf(" ");
}
for (j = 1; j <= i; j++) { //The inner loop
printf("%2c", prnt);
}
return 0;
}
int main() {
int i, nos = 5;
//draws the upper triangle
for (i = 1; i <= 4; i++) { triangle(nos, i); //Inner loop construction nos++; // Increments the spacing factor printf("\n"); } nos = 7; //Draws the lower triangle skipping its base. for (i = 3; i >= 1; i--) {
int j = 1;
triangle(nos, i); // Inner loop construction
nos = nos - j; // Spacing factor
printf("\n");
}
return 0;
}
* * * * * * * * *
* * * * * * * *
* * * * * *
* * * *
* *
* * * *
* * * * * *
* * * * * * * *
* * * * * * * * *
Program:
#include
int main() {
char prnt = '*';
int i, j, k, s, nos = -1;
for (i = 5; i >= 1; i--) {
for (j = 1; j <= i; j++) { printf("%2c", prnt); } for (s = nos; s >= 1; s--) {
printf(" ");
}
for (k = 1; k <= i; k++) {
if (i == 5 && k == 5) {
continue;
}
printf("%2c", prnt);
}
nos = nos + 2;
printf("\n");
}
nos = 5;
for (i = 2; i <= 5; i++) {
for (j = 1; j <= i; j++) { printf("%2c", prnt); } for (s = nos; s >= 1; s--) {
printf(" ");
}
for (k = 1; k <= i; k++) {
if (i == 5 && k == 5) {
break;
}
printf("%2c", prnt);
}
nos = nos - 2;
printf("\n");
}
return 0;
}
* * * * * * * * * * * * * * * * *
* * * * * * * * * * * * * *
* * * * * * * * * *
* * * * * *
* * * * * * * * *
* * * * * * *
* * * * *
* * *
*
Program:
#include
int main() {
char prnt = '*';
int i, j, k, s, sp, nos = 0, nosp = -1;
for (i = 9; i >= 3; (i = i - 2)) {
for (s = nos; s >= 1; s--) {
printf(" ");
}
for (j = 1; j <= i; j++) { printf("%2c", prnt); } for (sp = nosp; sp >= 1; sp--) {
printf(" ");
}
for (k = 1; k <= i; k++) { if (i == 9 && k == 1) { continue; } printf("%2c", prnt); } nos++; nosp = nosp + 2; printf("\n"); } nos = 4; for (i = 9; i >= 1; (i = i - 2)) {
for (s = nos; s >= 1; s--) {
printf(" ");
}
for (j = 1; j <= i; j++) {
printf("%2c", prnt);
}
nos++;
printf("\n");
}
return 0;
}
*
* * *
* * * * *
* * * * * * *
* *
* * * *
* * * * * *
* * * * * * *
* * * * * *
* * * *
* *
* * * * * * *
* * * * *
* * *
*
Program:
#include
/*
* nos = Num. of spaces required in the triangle.
* i = Counter for the num. of charcters to print in each row
* skip= A flag for checking whether to
* skip a character in a row.
*
*/
int triangle(int nos, int i, int skip) {
char prnt = '*';
int s, j;
for (s = nos; s >= 1; s--) {
printf(" ");
}
for (j = 1; j <= i; j++) {
if (skip != 0) {
if (i == 4 && j == 1) {
continue;
}
}
printf("%2c", prnt);
}
return 0;
}
int main() {
int i, nos = 4;
for (i = 1; i <= 7; (i = i + 2)) {
triangle(nos, i, 0);
nos--;
printf("\n");
}
nos = 5;
for (i = 1; i <= 4; i++) { triangle(1, i, 0); //one space needed in each case of the formation triangle(nos, i, 1); //skip printing one star in the last row. nos = nos - 2; printf("\n"); } nos = 1; for (i = 3; i >= 1; i--) {
triangle(1, i, 0);
triangle(nos, i, 0);
nos = nos + 2;
printf("\n");
}
nos = 1;
for (i = 7; i >= 1; (i = i - 2)) {
triangle(nos, i, 0);
nos++;
printf("\n");
}
return 0;
}
* * * * * * * * * * * * * * * * * * * * * * * * *
* * * * * *
* * * * * *
* * * * * *
* * *
* * * * * *
* * * * * *
* * * * * *
* * * * * * * * * * * * * * * * * * * * * * * * *
Program:
#include
/*
* nos = Num. of spaces required in the triangle.
* i = Counter for the num. of characters to print in each row
* skip= A flag for check whether to
* skip a character in a row.
*
*/
int triangle(int nos, int i, int skip) {
char prnt = '*';
int s, j;
for (s = nos; s >= 1; s--) {
printf(" ");
}
for (j = 1; j <= i; j++) { if (skip != 0) { if (i == 9 && j == 1) { continue; } } if (i == 1 || i == 9) { printf("%2c", prnt); } else if (j == 1 || j == i) { printf("%2c", prnt); } else { printf(" "); } } return 0; } int main() { int i, nos = 0, nosp = -1, nbsp = -1; for (i = 9; i >= 1; (i = i - 2)) {
triangle(nos, i, 0);
triangle(nosp, i, 1);
triangle(nbsp, i, 1);
printf("\n");
nos++;
nosp = nosp + 2;
nbsp = nbsp + 2;
}
nos = 3, nosp = 5, nbsp = 5;
for (i = 3; i <= 9; (i = i + 2)) {
triangle(nos, i, 0);
triangle(nosp, i, 1);
triangle(nbsp, i, 1);
printf("\n");
nos--;
nosp = nosp - 2;
nbsp = nbsp - 2;
}
return 0;
}
