We have to print natural numbers columns wise with decreasing size, depending upon given number of lines as described in the examples below –
Input : 5 Output : 1 2 6 3 7 10 4 8 11 13 5 9 12 14 15 Input : 3 Output : 1 2 4 3 5 6
- We will take outer for loop, which is for how many lines we want to print.
- Since we want to print natural number column by column, for this we will take an inner for loop.
In the above example the number of element is depending upon number for i, therefore we take a variable k which is equal to i
Value of i || Number of Element 1 || 1 2 || 2 3 || 3 so on
- Using the logic k = k + n – j, we will get natural numbers according to requirement.
1 2 6 3 7 10 4 8 11 13 5 9 12 14 15
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Improved By : Mithun Kumar