Suggested problems

Solar power is future.

March 9, 2023, 6:51 a.m. by johanmonk96

Biological Motivation

As the world continues to seek sustainable energy solutions, [solar power plants][1] are gaining in popularity as a viable alternative to traditional energy sources. Solar power plants harness the sun's energy to produce electricity, offering numerous advantages over fossil fuel-powered plants. Below are some of the main advantages of solar power plants.

Renewable and sustainable One of the most significant advantages of solar power plants is that they are powered by a renewable energy source: the sun. Unlike traditional power plants that rely on finite resources like coal and oil, solar power is limitless, and the technology is continually improving. As long as the sun continues to shine, [solar power plants][2] can produce clean energy.

Reduced carbon footprint Solar power plants generate electricity without producing harmful greenhouse gases, making them an environmentally friendly choice. Unlike fossil fuel-powered plants, solar power plants emit zero emissions while producing electricity. By using solar energy, we can reduce our dependence on fossil fuels and reduce our carbon footprint.

Lower operating costs Solar power plants have lower operating costs compared to traditional power plants. Solar panels require minimal maintenance, and the sun provides the energy needed to produce electricity, meaning that solar power plants have lower fuel costs. This translates to lower electricity bills for consumers.

Scalability Solar power plants are highly scalable, meaning they can be customized to meet the needs of different energy demands. Whether you need to power a single home or an entire city, solar power plants can be designed to meet your needs.

Independence from the grid Another significant advantage of solar power plants is that they can operate independently of the grid. This means that even in remote areas where there is no access to the electricity grid, solar power can be harnessed to provide power. This can be especially beneficial for areas that are prone to power outages.

Job creation The installation and maintenance of solar power plants create job opportunities. As more solar power plants are built, more people will be needed to install and maintain them. This can help to boost the economy and provide job opportunities for people in local communities.

Longevity Solar power plants have a long lifespan, with most solar panels designed to last for decades. This means that once a solar power plant is built, it can continue to generate electricity for many years, making it a long-term investment. ...

[1]: [2]:


A string is simply an ordered collection of symbols selected from some alphabet and formed into a word; the length of a string is the number of symbols that it contains.

An example of an DNA string (whose alphabet contains the symbols A, C, G, and T) is ATGCTTCAGAAAGGTCTTACG.

Given: A DNA string $s$ of length at most 1000 nucleotides.

Return: Four integers corresponding to the number of times that the symbols A, C, G, and T occur in $s$.

Sample Dataset


Sample Output

20 12 17 21