Triangle #1:
*
**
***
****
*****
#include <stdio.h>
#include <conio.h>
int main (int argc, char *argv[])
{
int r, i, j;
printf("\n Enter the range:");
scanf("%d", &r);
for (i = 0; i < r; i++)
{
for (j = 0; j <= i; j++)
{
printf("*");
}
printf("\n");
}
}
Triangle #2:
*****
****
***
**
*
#include <stdio.h>
#include <conio.h>
int main (int argc, char *argv[])
{
int r, i, j;
printf ("\n Enter the range:");
scanf ("%d", &r);
for (i = 0; i < r; i++)
{
for (j=r-1;j>=i;j--)
{
printf ("*");
}
printf ("\n");
}
}
Triangle #3:
*****
****
***
**
*
#include <stdio.h>
#include <conio.h>
int main (int argc, char *argv[])
{
int r,i,j;
printf("\n Enter the range:");
scanf ("%d", &r);
for (i = 0; i < r; i++)
{
for (j = 0; j < i; j++)
{
printf (" ");
}
for(j = i; j < r; j++)
{
printf ("*");
}
printf ("\n");
}
}
Triangle #4:
*
**
***
****
*****
#include<stdio.h>
#include<conio.h>
int main (int argc, char *argv[])
{
int r, i, j;
printf ("\n Enter the range:");
scanf ("%d", &r);
for (i = 0; i < r; i++)
{
for (j = i; j < r; j++)
{
printf (" ");
}
for (j = 0; j <= i; j++)
{
printf ("*");
}
printf ("\n");
}
}
Triangle #5:
*
***
*****
*******
*********
#include<stdio.h>
#include<conio.h>
int main (int argc, char *argv[])
{
int r, i, j;
printf ("\n Enter the range:");
scanf ("%d", &r);
for (i = 0; i < r; i++)
{
for (j = i; j < r; j++)
{
printf (" ");
}
for (j = 0; j <= i; j++)
{
printf ("*");
}
for (j = 0; j < i; j++)
{
printf ("*");
}
printf ("\n");
}
}
Triangle #6:
*********
*******
*****
***
*
#include<stdio.h>
#include<conio.h>
int main (int argc, char *argv[])
{
int r, i, j;
printf ("\n Enter the range:");
scanf ("%d", &r);
for (i = 0; i < r; i++)
{
for (j = 0; j < i; j++)
{
printf (" ");
}
for (j = i; j < r; j++)
{
printf ("*");
}
for (j = i; j < (r - 1); j++)
{
printf ("*");
}
printf ("\n");
}
}
Triangle #7:
*
***
*****
*******
*********
*******
*****
***
*
#include <stdio.h>
#include <conio.h>
int main (int argc, char *argv[])
{
int r, i, j;
printf ("\n Enter the range:");
scanf ("%d", &r);
for(i = 0; i < r; i++)
{
for(j = i; j < r; j++)
{
printf(" ");
}
for(j = 0; j < i; j++)
{
printf ("*");
}
for(j = 0; j < (i - 1); j++)
{
printf("*");
}
printf("\n");
}
for (i = r; i < (2 * r); i++)
{
for (j = 0; j < (i - r); j++)
{
printf(" ");
}
for(j = (i - r); j < r; j++)
{
printf("*");
}
for(j = (i - r); j < (r - 1); j++)
{
printf("*");
}
printf("\n");
}
}
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