Prompt Detail:
To recognize the image and determine which symbol it represents, we can follow the below steps:
- Check if the image is an "I" symbol by checking if it is a filled rectangle.
- Check if the image is an "O" symbol by checking if it is a filled rectangle with an unfilled area inside.
- Check if the image is a "C" symbol by checking if it is a filled rectangle with an unfilled area inside and the right border of the unfilled area breaks the border of the right border of the filled area.
- Check if the image is an "L" symbol by checking if it is two rectangles lying on top of each other. Their left border is the same, and the right edge of the bottom rectangle advances more to the right than the right edge of the top rectangle.
- Check if the image is a "T" symbol by checking if it is two rectangles, one on top of another one. The left border of the rectangle on the top spans more to the left than the left border of the rectangle on the bottom. The right border of the rectangle on the top spans more to the right than the right border of the rectangle on the bottom.
- If none of the above conditions match, the image must be an "X" symbol.
Here is the implementation of the recognizeImage method that follows the above steps and returns the recognized symbol:
cssprivate final String recognizeImage(int[][] input) {
// Check if it is an "I" symbol
if (isFilledRectangle(input)) {
return "I";
}
// Check if it is an "O" symbol
if (isFilledRectangleWithUnfilledArea(input)) {
return "O";
}
// Check if it is a "C" symbol
if (isFilledRectangleWithUnfilledAreaAndBrokenBorder(input)) {
return "C";
}
// Check if it is an "L" symbol
if (isTwoRectanglesLyingOnTopOfEachOther(input)) {
return "L";
}
// Check if it is a "T" symbol
if (isTwoRectanglesOneOnTopOfAnother(input)) {
return "T";
}
// If none of the above conditions match, it must be an "X" symbol
return "X";
}
// Helper methods to check if the image matches each symbol description
private boolean isFilledRectangle(int[][] input) {
int left = 0, right = input[0].length - 1, top = 0, bottom = input.length - 1;
for (int i = top; i <= bottom; i++) {
for (int j = left; j <= right; j++) {
if (input[i][j] == 0) {
return false;
}
}
}
return true;
}
private boolean isFilledRectangleWithUnfilledArea(int[][] input) {
int left = 0, right = input[0].length - 1, top = 0, bottom = input.length - 1;
// Check if the outer border is a filled rectangle
if (!isFilledRectangle(input)) {
return false;
}
// Check if there is an unfilled area inside the outer border
for (int i = top + 1; i < bottom; i++) {
for (int j = left + 1; j < right; j++) {
if (input[i][j] == 1) {
return false;
}
}
}
return true;
}
private boolean isFilledRectangleWithUnfilledAreaAndBrokenBorder(int[][] input) {
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