View Code of Problem 53

#include<iostream>

using namespace std;

int main(){
	int n;
	cin>>n;
	for(int i=0;i<n;++i){
		for(int j=0;j<n-i;++j){
			cout<<' ';
		}
		for(int j=0;j<2*i+1;++j){
			cout<<'*';
		}
		cout<<endl;
	} 
	for(int i=n-2;i>=0;--i){
		for(int j=0;j<n-i;++j){
			cout<<' ';
		}
		for(int j=0;j<2*i+1;++j){
			cout<<'*';
		}
		cout<<endl;
	}
	return 0;
}

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