Pascal triangle 1

#1

why my code is not working??
#include
using namespace std;
int main() {
int n;
cin>>n;
for(int i=0;i<n;i++){

	for(int j=1;j<n-i;j++){
		cout<<' ';
	}
	long int val=1;
	for(int j=0;j<=i;j++){
      cout<<val<<' ';
	  val=(val*(i-j))/(j+1);
	}
	cout<<endl;
}
return 0;

}

#2

i am unable to understand what is the exact no rows i have to print in every row

#3

hi @rabimajumder08
refer this -->

#include<iostream>
using namespace std;
int main(){
	int n;
	cin>>n;
	
	for(int i=1;i<=n;i++){
		int num=1;
		for(int j=1;j<=n-i+1;j++){
			cout<<" ";
		}
		
		for(int j=1;j<=i;j++){
			if(j==1){
				cout<<j<<" ";
			}
			else{
				num=num*(i-j+1)/(j-1);
				cout<<num<<" ";
			}
		}
		cout<<endl;
	}
}
#4

pls explain the no of space in each row

#5

hi @rabimajumder08
As output format is expected, in beginning of each row no is spaces can be calculated by computing the formula

#6

pls explain in1st row how many space are there and what formula r u using

#7

hi @rabimajumder08
suppose our input i.e n is 4…
therefore for first row no of spaces would
=> n - i + 1
=> 4 - 1 + 1 (n is 4, i = 1(ie row number))
=> 4 spaces

#8

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