Given a positive integer N. The task is to find the maximum number that can be displayed on seven segment display using N segments.
Seven Segment Display: A seven-segment display (SSD), or seven-segment indicator, is a form of an electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix displays.
Input : N = 5 Output : 71 On 7-segment display, 71 will look like: _ | | | | Input : N = 4 Output : 11
Observe, the number having a greater number of digits than other numbers will be greater in value. So, we will try to make a number with maximum possible length (number of digits) using given ‘N’ segments.
Also observe, to increase the length of the number we will try to use less segment on each digit as possible. So, number ‘1’ use only 2 segments to represent a digit. No other digit use less than 2 segments.
So, in case N is even, the answer would be 1s N/2 number of time.
In case N is odd, we cannot use all segments if we make 1s N/2 number of time. Also, if we use 3 segments to make a digit of 7 and (N-3)/2 number of 1s, then the number formed will be greater in value than the number formed by N/2 number of 1s.
Below is the implementation of this approach:
- Find element using minimum segments in Seven Segment Display
- Check if mirror image of a number is same if displayed in seven segment display
- Maximum number of segments that can contain the given points
- Maximum number of parallelograms that can be made using the given length of line segments
- Partition an array such into maximum increasing segments
- Maximum possible intersection by moving centers of line segments
- Split the array into odd number of segments of odd lengths
- Check if number can be displayed using seven segment led
- Number of horizontal or vertical line segments to connect 3 points
- Minimum number of cuts required to make circle segments equal sized
- Maximize the given number by replacing a segment of digits with the alternate digits given
- Maximum number formed from array with K number of adjacent swaps allowed
- Find maximum number that can be formed using digits of a given number
- Querying maximum number of divisors that a number in a given range has
- Find the maximum number of composite summands of a number
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