multidimensional-array

问题 I know how to generally manipulate and create a multidimensional array but I don't know all the utils and features that arrays have. I want to know is if I have a 2D array the size of [5][4] , can I print it where the first line is in order, second is in reverse, and the third is in order... and so on. For example: [1 2 3 4] //in order [8 7 6 5] //reverse [9 10 11 12] //in order [16 15 14 13] //reverse [17 18 19 20] //in order as my teacher stated "Define a two-dimensional array of size m × n

问题 I have an array like so: [1, 2, 3, 4, 5, 6, 7, 9, 10] . I need to chunk it into different size chunks, yet with a simple pattern of: 4, 3, 3, 3, 4, 3, 3, 3 like so: [ [ // four 1, 2, 3, 4 ], [ // three (1/3) 5, 6, 7 ], [ // three (2/3) 8, 9, 10 ], [ // three (3/3) 11, 12, 13 ], [ // four 14, 15, 16, 17 ], [ // three (1/3) 18, 19, 20 ], // and so on.. ] I have tried with this code I have customized: const arr; // my array of values const chuncked = arr.reduce((acc, product, i) => { if (i % 3)

问题 I have an array like so: [1, 2, 3, 4, 5, 6, 7, 9, 10] . I need to chunk it into different size chunks, yet with a simple pattern of: 4, 3, 3, 3, 4, 3, 3, 3 like so: [ [ // four 1, 2, 3, 4 ], [ // three (1/3) 5, 6, 7 ], [ // three (2/3) 8, 9, 10 ], [ // three (3/3) 11, 12, 13 ], [ // four 14, 15, 16, 17 ], [ // three (1/3) 18, 19, 20 ], // and so on.. ] I have tried with this code I have customized: const arr; // my array of values const chuncked = arr.reduce((acc, product, i) => { if (i % 3)

问题 I have an array like so: [1, 2, 3, 4, 5, 6, 7, 9, 10] . I need to chunk it into different size chunks, yet with a simple pattern of: 4, 3, 3, 3, 4, 3, 3, 3 like so: [ [ // four 1, 2, 3, 4 ], [ // three (1/3) 5, 6, 7 ], [ // three (2/3) 8, 9, 10 ], [ // three (3/3) 11, 12, 13 ], [ // four 14, 15, 16, 17 ], [ // three (1/3) 18, 19, 20 ], // and so on.. ] I have tried with this code I have customized: const arr; // my array of values const chuncked = arr.reduce((acc, product, i) => { if (i % 3)

问题 #include <stdio.h> int main() { int N, i, j, k, z, v, x, c; printf("Determine the number of your words: \n"); scanf("%d", &N); char dict[50][50]; char tmp[50]; for(i=0; i<N; i++) { printf("Determine your %d. word: \n", i+1); scanf("%49s", &dict[i]); } for(j=0; N-1; j++) { for(k=0; N-i; j++) { if(dict[k][0]>dict[k+1][0]) { for(z=0; z<50; z++) { tmp[z]=dict[k][z]; } for(v=0; v<50; v++) { dict[k][v] = dict[k+1][v]; } for(x=0; x<50; x++) { dict[k][x]=tmp[x]; } } } } for(c=0; c<N; c++) { printf("

问题 i have standings array with team info and calculated points. But also i need to get goals count of each team. Need help how to fetch it to current array. This is my LeaguesController: public function standings(League $league, Team $team) { $standings = [ ]; $matches = Match::where('league_id', '=', $league->id)->get(); foreach($matches as $match) { $homeTeamScore = $match->score->home_team_score; $awayTeamScore = $match->score->away_team_score; if ($homeTeamScore === $awayTeamScore) { if

问题 i have standings array with team info and calculated points. But also i need to get goals count of each team. Need help how to fetch it to current array. This is my LeaguesController: public function standings(League $league, Team $team) { $standings = [ ]; $matches = Match::where('league_id', '=', $league->id)->get(); foreach($matches as $match) { $homeTeamScore = $match->score->home_team_score; $awayTeamScore = $match->score->away_team_score; if ($homeTeamScore === $awayTeamScore) { if

问题 Following this formula for alpha blending two color values, I wish to apply this to n numpy arrays of rgba image data (though the expected use-case will, in practice, have a very low upper bound of arrays, probably > 5). In context, this process will be constrained to arrays of identical shape. I could in theory achieve this through iteration, but expect that this would be computationally intensive and terribly inefficient. What is the most efficient way to apply a function between two

问题 I'm trying to go over the problems in the Cracking the Coding Interview book. One of the questions asks me to rotate a matrix 90 degrees clockwise. Now, while trying to solidify my understanding of matrix rotation, I tried to embark on a new problem: to try to rotate a matrix 90 degrees counterclockwise (the other direction). I've tried to go through layers of a square matrix, the outer layer, iterating all the way into the inner layer and rotating all the indexes of each side of the "square"

问题 I am trying to calculate the average value of columns in 2D array, but I cannot figure out the code. The function should return the average value of each column. And I cannot print the result in the function. The print should be in main function. static double average_columns(double matrix[][]) { int i, j, sum = 0, average=0; for (i = 0; i < matrix.length; i++) { for (j = 0; j < matrix[i].length; j++) { sum=(int) (sum+matrix[i][j]); } average=sum/matrix[i].length; sum=0; } return average; }