38 lines
486 B
C++
38 lines
486 B
C++
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/*
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Description: A program to find sum of n natural numbers using recursion.
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Time Complexity: O(n)
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*/
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#include <iostream>
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using namespace std;
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//function starts
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int sumofN(int n)
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{
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//base case
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if (n <= 1)
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{
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return n;
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}
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//recursive function call
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int res = sumofN(n - 1);
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//return sum
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return n + res;
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}
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// Driver code
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int main()
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{
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int n = 5;
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cout << sumofN(n);
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return 0;
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}
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/*
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Sample Input: 5
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Output: 15
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Sample Input: 3
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Output: 6
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*/
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