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# Number Triangle in C++

Program to implement Number Triangle in C++

• #include <iostream>

• using namespace std;

• int main()

• {

• int i,j,k,l,n;

• cout<<"Enter the Range=";

• cin>>n;

• for(i=1;i<=n;i++)

• {

• for(j=1;j<=n-i;j++)

• {

• cout<<" ";

• }

• for(k=1;k<=i;k++)

• {

• cout<<k;

• }

• for(l=i-1;l>=1;l--)

• {

• cout<<l;

• }

• cout<<"\n";

• }

• return 0;

• }

Output –

Enter the Range=6

1

121

2321

1234321

123454321

12345654321

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