How to find the maximum repeating number in array with C

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#include <stdio.h>
#include <limits.h>

int MaxRepertingElement(int* array, int size) {
    for (int i = 0; i < size; i++) {
        array[array[i] % size] += size;
        // array[i] % size = 3 4 8 3 8 2 3 9 4 4 4 7 7 7 4 
        // array = [3, 4, 23, 48, 83, 2, 3, 54, 34, 19, 4, 7, 7, 7, 4]  
    }

    int max_element = INT_MIN, repeating = 0;

    for (int i = 0; i < size; i++) {
        if (array[i] > max_element) {
            max_element = array[i];
            repeating = i;
        }
    }

    for (int i = 0; i < size; i++) {
        array[i] = array[i] % size;
        // array = 3, 4, 8, 3, 8, 2, 3, 9, 4, 4, 4, 7, 7, 7, 4 // return original values

    }

    return repeating;
}


int main(void) {
    int array[] = { 3, 4, 8, 3, 8, 2, 3, 9, 4, 4, 4, 7, 7, 7, 4 };

    int size = sizeof(array) / sizeof(array[0]);

    printf("%d ", MaxRepertingElement(array, size));

    return 0;
}




/*
run:

4

*/

 



answered Aug 28, 2022 by avibootz
edited Aug 28, 2022 by avibootz

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