sum of n natural numbers

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The positive numbers 1,2,3 ... are known as natural numbers. Formula for Sum of First n natural numbers is : n(n+1)/2. If you want to add first 5 Natural number then we find the Sum of 1+2+3+4+5 =15.The positive numbers 1,2,3 ... are known as natural numbers. Formula for Sum of First n natural numbers is : n(n+1)/2. If you want to add first 5 Natural number then we find the Sum of 1+2+3+4+5

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solution.cppC++17

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