I have a project about making pascal triangle using recursive function.
This is the example output:
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
Hint:(x+y) n=>exponent.
*Give me an idea about this project. Thanks!
I have a project about making pascal triangle using recursive function.
This is the example output:
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
Hint:(x+y) n=>exponent.
*Give me an idea about this project. Thanks!
Jump to PostYou need to show us some efford before we can help you xD
Jump to PostDo you know how to create a pascal triangle without recursive?
If so then doing it recursive won't be that far off. Give it a go and see
what happens.
You need to show us some efford before we can help you xD
Do you know how to create a pascal triangle without recursive?
If so then doing it recursive won't be that far off. Give it a go and see
what happens.
/* Program to print the Pascal's triangle recursively */
#include<stdio.h>
int pascal(int,int);
void space(int,int);
main()
{
int num,i,j;
printf("\nEnter the no. of rows required: ");
scanf("%d",&num);
for(i=1;i<=num;i++)
{
space(num-i,3);
for(j=1;j<=i;j++)
{
printf("%3d",pascal(i,j));
space(1,3);
}
printf("\n");
}
}
int pascal(int row,int column)
{
if(column==0)
return 0;
else if(row==1&&column==1)
return 1;
else if(column>row)
return 0;
else
return (pascal(row-1,column-1)+pascal(row-1,column));
}
void space(int num,int mul)
{
int i;
num*=mul;
for(i=0;i<num;i++)
printf(" ");
}
This code will do the job
#include <iostream>
long calc(int n, int r) {
if ((n == 0) || (r == 0) || (n == r)) return 1;
else return (calc(n-1,r-1) + calc(n-1,r));
} // This is the recursive function
int main() {
printf("Enter a number = ");
int num;
scanf("%i", &num);
for (int i = 0; i<=num; i++) {
for (int j = num; j > i; j--) printf(" ");
for (int k = 0; k <= i; k++) printf("%6d", calc(i,k));
printf("\n");
} // End of for loop
return 0;
}
@shellexecutor: Don't bump 2 year old threads (the OP probably doesn't care anymore), and don't provide fully working code, especially for such a classic homework problem (pascal triangle) and when the OP didn't show much effort of his own.
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