What are the codes for pascal triangle by using pascal compiler?

Answer 1

the logic i have used is nCr => n!/(r!*(n-r)!) for example the outer loop counter is 'n' and the inner loop counter is 'r' , then the corresponding element of the pascal's triangle will be nCr. keep in mind that both the loops will have to start from zero. #include<stdio.h> main()

{

int num,i,j,k,space;

int difffact=1,diff,n,r,x,y,comb=0,nfact=1,rfact=1;

printf("please enter the number of lines\n");

scanf("%d",&num); k=num-1;

space=num-1;

for(i=0;i<num;i++)

{

k=space--;

for(;k>0;k--)

{

printf(" ");

}

for(j=0;j<=i;j++)

{

comb=0;

nfact=1;

rfact=1;

difffact=1; for(n=i;n>=1;n--)

nfact=nfact*n; for(r=j;r>=1;r--)

rfact=rfact*r; diff=i-j;

for(;diff>=1;diff--)

difffact=difffact*diff; comb=(nfact/(rfact*difffact));

printf("%d ",comb);

}

printf("\n");

}

}

Answer 2

Hi the way u explained the logic and the program You have done is, perfect.But jus two things You need to concentrate for printing the pyramid in a right shape.I have included changes .. You.

#include

#include

/*program to generate pascal triangle, no. of lines r to be entered by the user*/

void main()

{

int a,b,c,i,j,n,r,s,ncr,factr,factn,factnr,line;

printf("please enter the number of lines of the pascal triangle\n");

scanf("%d",&line); //inputs the no. of lines we want

clrscr();

for(i=0;i<=line-1;i++)//outer loop for the value of n

{

factn=1;// reinitializing the factorial values to avoid garbage values...

factr=1;

factnr=1;

for(s=line-1;s>=i;s--) // Just Included a For loop TO have leading Spaces

{

printf(" ");

}

for(j=0;j<=i;j++) //outer loop for the values of r

{

n=i; //here we have assigned i to n and j to r for our nCr calculation and convinience

r=j;

factn=1; // again we have re initialised factorial values to avoid garbage values

factr=1;

factnr=1;

if(n==0) //we know factorial of 0 =1

factn=1;

else

{

for(a=n;a>=1;a--) //factorial calculation of n is n!=0

factn=factn*a;

}

if(r==0)

factr=1;

else

{

for(b=r;b>=1;b--) //factorial calculation of r if r!=0

factr=factr*b;

}

if((n-r)==0)

factnr=1;

else

{

for(c=(n-r);c>=1;c--) //factorial calculation of n-r if (n-r)!=0

factnr=factnr*c;

}

ncr=factn/(factr*factnr); //ncr calculation

printf("%2d",ncr); //Remove that tab and GIven 2d to have spaces between each characters and prints the value of ncr

}

printf("\n"); //cursor get to the next line when the control exits the inner loop

}

}

Answer 3

#include<stdio.h>

#include<conio.h>

int main()

{

unsigned int c,i,j,k;

for(i=0;i<6;i++)

{

c=1;

for(j=1;j<=2*(5-i);j++)

printf(" ");

for(k=0;k<=i;k++)

{

printf("%3d",c);

c=c*(i-k)/(k+1);

}

printf("\n");

}

getch();

return 0;

}

Answer 4

#include
#include
#include
void main()
{
clrscr(); int n;
cout<<"\n enter number of lines ";
cin>>n;
int a=1,b,s=1;
for(;a<=n;s=s*10+1)
{
for(b=n-a;b>=1;b--)
{
cout<<" ";
}
cout<cout<<"\n";
a++;
}

getch();
}

Answer 5

#include<iostream>

#include<string>

int pascal (const int row, const int col)

{

if (!col col==row)

return 1;

return pascal (row-1, col-1) + pascal (row-1, col);

}

int main()

{

using namespace std;

cout << "Enter a row number for Pascal's Triangle: ";

size_t rows;

cin >> rows;

for (size_t row=0; row!=rows; ++row)

{

cout << string (rows-row,'\t');

for(size_t col=0;col<=row; ++col)

cout << pascal (row,col) << "\t\t";

cout << endl;

}

}

Answer 6

No.

Check previous answers to this question and any other questions you may have in your course. Others before you have asked the very same questions.

Answer 7

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