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BackgroundThe electric field ๐ธโ†’ of a particle with charge ๐‘ž can be derived from its electric potential ๐‘‰:๐ธโ†’=โˆ’โˆ‡๐‘‰where โˆ‡ is the derivative operator and ๐‘‰ at every point in space is ๐‘‰=14๐œ‹๐œ€0๐‘ž||๐‘Ÿโ†’||where ๐‘Ÿโ†’ is the distance from the particle at that point, 14๐œ‹๐œ€0 is some constant, and ||๐‘Ÿโ†’||=๐‘Ÿ๐‘ฅ2+๐‘Ÿ๐‘ฆ2 (in a two-dimensional plane). The net electric potential at any point is the sum of all of the electric potentials from all the particles.The force from particle ๐ต on particle ๐ด is the charge of ๐ด (๐‘ž๐ด) multiplied by the electric field from ๐ต: ๐นโ†’๐ตโ†’๐ด=๐‘ž๐ด๐ธโ†’๐ต=14๐œ‹๐œ€0๐‘ž๐ดโ‹…๐‘ž๐ต||๐‘Ÿโ†’||2๐‘Ÿ^For this problem, however, you will only visualize the electric potential ๐‘‰.ProblemGiven two kinds of particles, those with a positive charge +๐‘’, and those with negative charges โˆ’๐‘’, display the electric potential at every point in space. The electric potential should be normalized relative to |๐‘’|4๐œ‹๐œ€0 (i.e., treat |๐‘’|4๐œ‹๐œ€0 as 1).InputInput starts with 3 integers ๐‘›,๐‘š,๐‘ž where 0<๐‘›,๐‘šโ‰ค50 and 0<๐‘žโ‰ค10. Then follows ๐‘ž lines: each line contains three values ๐‘ฅ,๐‘ฆ,๐‘ , where 1โ‰ค๐‘ฅโ‰ค๐‘š and 1โ‰ค๐‘ฆโ‰ค๐‘› correspond to the integer coordinates of the charged particle and ๐‘  is the sign of the particleโ€™s charge being either a + or a -. No two particles will have the same coordinates.OutputYour output should be an ๐‘›ร—๐‘š grid of ASCII characters oriented with the positive ๐‘ฆ-axis pointing down and the positive ๐‘ฅ-axis pointing to the right, with coordinates starting from 1. Every character in the grid corresponds to the total potential at that point.If the field contains a particle, print either a + or - corresponding to its charge. Otherwise, the character you place will be related to the sign of the potential. If the potential is negative then use the characters {%,X,x}. If it is positive, however, use the character set {0,O,o} (the first element is a zero).There are 3 tiers to the fieldโ€™s magnitude:1/๐œ‹1/๐œ‹21/๐œ‹3If the field is below the third tier print a โ€œ.โ€.If the magnitude is above the first tier then you would use % or 0 (zero) depending on the sign, if it is below the first tier then you would use X or O, and so on and so forth.Sample Input 1 Sample Output 120 20 25 5 +15 15 -OOOOOOOOOoooo.......OOOOOOOOOoooo.......OOO000OOOOooo.......OO00000OOOooo.......OO00+00OOOoo........OO00000OOooo........OOO000OOOoo....xxxxxOOOOOOOOoo...xxxxxxxOOOOOOOoo...xxxxxxxxooOOOooo...xxxXXXxxxooooooo...xxXXXXXXXxoooooo...xxXXXXXXXXXoooo....xxXXX%%%XXXX.......xxxXX%%%%%XXX.......xxXXX%%-%%XXX......xxxXXX%%%%%XXX......xxxXXXX%%%XXXX......xxxxXXXXXXXXXX......xxxxXXXXXXXXXX......xxxxxXXXXXXXXxSample Input 2 Sample Output 220 20 315 15 -10 10 +5 5 -XXXXXXXXXXxxxxxxxxxxXXXXXXXXXXxxxxxxxxxxXXX%%%XXXXxxxxxxxxxxXX%%%%%XXXxxxxxxxxxxXX%%-%%XXxxxxxxxxxxxXX%%%%%Xxx..xxxxxxxxXXX%%%Xx.oo..xxxxxxxXXXXXXx.OOOo..xxxxxxXXXXXx.O000Oo.xxxxxxXXXXxxoO0+0OoxxXXXXXxxxxx.oO000O.xXXXXXXxxxxx..oOOO.xXXXXXXXxxxxxx..oo.xX%%%XXXXxxxxxxx..xxX%%%%%XXXxxxxxxxxxxXX%%-%%XXXxxxxxxxxxXXX%%%%%XXXxxxxxxxxxXXXX%%%XXXXxxxxxxxxxXXXXXXXXXXXxxxxxxxxxXXXXXXXXXXXxxxxxxxxxXXXXXXXXXXXSample Input 3 Sample Output 320 20 210 2 +10 18 -oooOOOO00000OOOOoooooooOOOO00+00OOOOoooooooOOOO00000OOOOooooooooOOOO000OOOOooooooooooOOOOOOOOOooooooooooooOOOOOOOoooooo..oooooooOOOooooooo......ooooooooooo.....................................................................xxxxxxxxxxx......xxxxxxxXXXxxxxxxx..xxxxxxXXXXXXXxxxxxx.xxxxxXXXXXXXXXxxxxxxxxxxXXXX%%%XXXXxxxxxxxxXXXX%%%%%XXXXxxxxxxxXXXX%%-%%XXXXxxxxxxxXXXX%%%%%XXXXxxxxxxxXXXXX%%%XXXXXxxxx

Question

BackgroundThe electric field ๐ธโ†’ of a particle with charge ๐‘ž can be derived from its electric potential ๐‘‰:๐ธโ†’=โˆ’โˆ‡๐‘‰where โˆ‡ is the derivative operator and ๐‘‰ at every point in space is ๐‘‰=14๐œ‹๐œ€0๐‘ž||๐‘Ÿโ†’||where ๐‘Ÿโ†’ is the distance from the particle at that point, 14๐œ‹๐œ€0 is some constant, and ||๐‘Ÿโ†’||=๐‘Ÿ๐‘ฅ2+๐‘Ÿ๐‘ฆ2 (in a two-dimensional plane). The net electric potential at any point is the sum of all of the electric potentials from all the particles.The force from particle ๐ต on particle ๐ด is the charge of ๐ด (๐‘ž๐ด) multiplied by the electric field from ๐ต: ๐นโ†’๐ตโ†’๐ด=๐‘ž๐ด๐ธโ†’๐ต=14๐œ‹๐œ€0๐‘ž๐ดโ‹…๐‘ž๐ต||๐‘Ÿโ†’||2๐‘Ÿ^For this problem, however, you will only visualize the electric potential ๐‘‰.ProblemGiven two kinds of particles, those with a positive charge +๐‘’, and those with negative charges โˆ’๐‘’, display the electric potential at every point in space. The electric potential should be normalized relative to |๐‘’|4๐œ‹๐œ€0 (i.e., treat |๐‘’|4๐œ‹๐œ€0 as 1).InputInput starts with 3 integers ๐‘›,๐‘š,๐‘ž where 0<๐‘›,๐‘šโ‰ค50 and 0<๐‘žโ‰ค10. Then follows ๐‘ž lines: each line contains three values ๐‘ฅ,๐‘ฆ,๐‘ , where 1โ‰ค๐‘ฅโ‰ค๐‘š and 1โ‰ค๐‘ฆโ‰ค๐‘› correspond to the integer coordinates of the charged particle and ๐‘  is the sign of the particleโ€™s charge being either a + or a -. No two particles will have the same coordinates.OutputYour output should be an ๐‘›ร—๐‘š grid of ASCII characters oriented with the positive ๐‘ฆ-axis pointing down and the positive ๐‘ฅ-axis pointing to the right, with coordinates starting from 1. Every character in the grid corresponds to the total potential at that point.If the field contains a particle, print either a + or - corresponding to its charge. Otherwise, the character you place will be related to the sign of the potential. If the potential is negative then use the characters {%,X,x}. If it is positive, however, use the character set {0,O,o} (the first element is a zero).There are 3 tiers to the fieldโ€™s magnitude:1/๐œ‹1/๐œ‹21/๐œ‹3If the field is below the third tier print a โ€œ.โ€.If the magnitude is above the first tier then you would use % or 0 (zero) depending on the sign, if it is below the first tier then you would use X or O, and so on and so forth.Sample Input 1 Sample Output 120 20 25 5 +15 15 -OOOOOOOOOoooo.......OOOOOOOOOoooo.......OOO000OOOOooo.......OO00000OOOooo.......OO00+00OOOoo........OO00000OOooo........OOO000OOOoo....xxxxxOOOOOOOOoo...xxxxxxxOOOOOOOoo...xxxxxxxxooOOOooo...xxxXXXxxxooooooo...xxXXXXXXXxoooooo...xxXXXXXXXXXoooo....xxXXX%%%XXXX.......xxxXX%%%%%XXX.......xxXXX%%-%%XXX......xxxXXX%%%%%XXX......xxxXXXX%%%XXXX......xxxxXXXXXXXXXX......xxxxXXXXXXXXXX......xxxxxXXXXXXXXxSample Input 2 Sample Output 220 20 315 15 -10 10 +5 5 -XXXXXXXXXXxxxxxxxxxxXXXXXXXXXXxxxxxxxxxxXXX%%%XXXXxxxxxxxxxxXX%%%%%XXXxxxxxxxxxxXX%%-%%XXxxxxxxxxxxxXX%%%%%Xxx..xxxxxxxxXXX%%%Xx.oo..xxxxxxxXXXXXXx.OOOo..xxxxxxXXXXXx.O000Oo.xxxxxxXXXXxxoO0+0OoxxXXXXXxxxxx.oO000O.xXXXXXXxxxxx..oOOO.xXXXXXXXxxxxxx..oo.xX%%%XXXXxxxxxxx..xxX%%%%%XXXxxxxxxxxxxXX%%-%%XXXxxxxxxxxxXXX%%%%%XXXxxxxxxxxxXXXX%%%XXXXxxxxxxxxxXXXXXXXXXXXxxxxxxxxxXXXXXXXXXXXxxxxxxxxxXXXXXXXXXXXSample Input 3 Sample Output 320 20 210 2 +10 18 -oooOOOO00000OOOOoooooooOOOO00+00OOOOoooooooOOOO00000OOOOooooooooOOOO000OOOOooooooooooOOOOOOOOOooooooooooooOOOOOOOoooooo..oooooooOOOooooooo......ooooooooooo.....................................................................xxxxxxxxxxx......xxxxxxxXXXxxxxxxx..xxxxxxXXXXXXXxxxxxx.xxxxxXXXXXXXXXxxxxxxxxxxXXXX%%%XXXXxxxxxxxxXXXX%%%%%XXXXxxxxxxxXXXX%%-%%XXXXxxxxxxxXXXX%%%%%XXXXxxxxxxxXXXXX%%%XXXXXxxxx

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Solution

This problem is a physics problem involving the concept of electric potential and electric field. It requires a good understanding of these concepts as well as programming skills to solve it. Here is a step-by-step guide on how to approach this problem:

  1. Understand the problem: The problem is asking to calculate and visualize the electric potential at every point in a 2D space given the positions and charges of several particles. The electric potential is calculated using the formula ๐‘‰=14๐œ‹๐œ€0๐‘ž||๐‘Ÿโ†’||, and the force between two particles is calculated using the formula ๐นโ†’๐ตโ†’๐ด=๐‘ž๐ด๐ธโ†’๐ต=14๐œ‹๐œ€0๐‘ž๐ดโ‹…๐‘ž๐ต||๐‘Ÿโ†’||2๐‘Ÿ^.

  2. Parse the input: The input starts with three integers ๐‘›,๐‘š,๐‘ž, followed by ๐‘ž lines each containing three values ๐‘ฅ,๐‘ฆ,๐‘ . ๐‘› and ๐‘š are the dimensions of the 2D space, ๐‘ž is the number of particles, and each line after that represents a particle with its x and y coordinates and its charge sign.

  3. Calculate the electric potential: For each point in the 2D space, calculate the electric potential by summing up the potentials from all the particles. The potential from a particle is calculated using the formula ๐‘‰=14๐œ‹๐œ€0๐‘ž||๐‘Ÿโ†’||, where ๐‘ž is the charge of the particle and ||๐‘Ÿโ†’|| is the distance from the particle to the point.

  4. Normalize the electric potential: The problem asks to normalize the electric potential relative to |๐‘’|4๐œ‹๐œ€0, which means dividing the calculated potential by this value.

  5. Visualize the electric potential: The output should be an ๐‘›ร—๐‘š grid of ASCII characters. If the field contains a particle, print either a + or - corresponding to its charge. If the potential is negative then use the characters {%,X,x}. If it is positive, use the character set {0,O,o}. There are 3 tiers to the fieldโ€™s magnitude: 1/๐œ‹, 1/๐œ‹^2, 1/๐œ‹^3. If the field is below the third tier print a โ€œ.โ€. If the magnitude is above the first tier then you would use % or 0 (zero) depending on the sign, if it is below the first tier then you would use X or O, and so on.

  6. Implement the solution: Write a program that implements the above steps. The program should take the input, calculate and normalize the electric potential, and then output the visualization of the electric potential.

This problem requires a good understanding of the concepts of electric potential and electric field, as well as programming skills to implement the solution. It is a challenging problem that can be a good exercise for those studying physics or computer science.

This problem has been solved

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main points and formulae for electric charges and feilds chapter

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