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How to convert a specific column of a matrix to a string in C

1 Answer

0 votes
#include <stdio.h>  
#include <string.h>   

#define COLS 6
  
void convert_column_to_string(int matrix[][COLS], int rows, int col, char str[]) {
    for (int i = 0; i < rows; i++) {
        sprintf(str + strlen(str), "%d ", matrix[i][col]);
    }
}
  
int main()
{
    int matrix[][COLS] = { 
            {  4,  7,  9, 18, 29, 0 },
            {  1,  9, 18, 99,  4, 3 },
            {  9, 17, 89,  2,  7, 5 },
            { 19, 49,  6,  1,  9, 8 },
            { 29,  4,  7,  9, 18, 6 } };
            
    char str[128];
    int col = 3;
    
    int rows = sizeof(matrix) / sizeof(matrix[0]);
 
    convert_column_to_string(matrix, rows, col, str);
     
    puts(str);
    
    return 0;
}

  
  
/*
  
run:
  
18 99 2 1 9 
  
*/

 



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answered 6 days ago by avibootz

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