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How to find the largest element in a matrix with C

1 Answer

0 votes
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
  
#define ROWS 5
#define COLS 6
  
void printMatrix(int matrix[][COLS]) {
    for (int i = 0; i < ROWS; i++) {  
        for (int j = 0; j < COLS; j++) {
            printf("%4d", matrix[i][j]);
        } 
        printf("\n");
    }
}
   
int generateRandomInteger(int min, int max) {
    return min + rand() / (RAND_MAX / (max - min + 1) + 1);
    // return rand() % (max - min + 1) + min;
}
       
void generateRandomMatrix(int matrix[][COLS]) {
    srand(time(NULL));
      
    for (int i = 0; i < ROWS; i++) {     
        for (int j = 0; j < COLS; j++) {
            matrix[i][j] = generateRandomInteger(1, 100);
        }
    }
}
 
int getMax(int matrix[][COLS]) {
    int max = matrix[0][0];
     
    for (int i = 0; i < ROWS; i++) {     
        for (int j = 0; j < COLS; j++) {
            if (matrix[i][j] > max) {
                max = matrix[i][j];
            }
        }
    }
     
    return max;
}
  
int main() {
    int matrix[ROWS][COLS] = {{ 0 }};
      
    generateRandomMatrix(matrix);
         
    printMatrix(matrix);
     
    printf("\nmax = %d", getMax(matrix));
      
    return 0;
}
  
  
  
  
/*
run:
   
  94  80  73  55  60  35
  99  62  66  23  35  94
  38  98  66  37  14  21
  60  73  22  71  42   7
  10   3  99   6  26  82

max = 99
   
*/

 



answered Nov 12, 2023 by avibootz
edited Nov 12, 2023 by avibootz

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