Question: C++ program recursion in data structures Exercise 7.1: Write a function to calculate triangular number using recursion. Int trinum (int x); trinum(4)=10 i.e. 4+3+2+1+0=10

C++ program recursion in data structures Exercise 7.1: Write a function

C++ program recursion in data structures

Exercise 7.1: Write a function to calculate triangular number using recursion. Int trinum (int x); trinum(4)=10 i.e. 4+3+2+1+0=10

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