int min (int a, int b) {
    return a > b ? b : a;
}


int rounds(int ele, int target, int** memo) {
    if (ele < target) return INT_MAX; 
    
    if (ele == target) return 0; 

    if (memo[ele][target] != -1) return memo[ele][target];
    
    int result = 1 + min(min(rounds(ele - 5, target, memo), 
                            rounds(ele - 2, target, memo)), 
                        rounds(ele - 1, target, memo));

    return memo[ele][target] = result;
}


int equal(int n, int* arr) {
    int MIN = INT_MAX;
    int max = INT_MIN;

    /**
     * We will find the max element
     * as we need to create our memoization
     * table
     */

    /**
     * First of all find the minimum
     * value in the array so we can start 
     * reducing the values to matche it
     */
    for (int x = 0; x < n; x++) {
        if (arr[x] < MIN) MIN = arr[x];
        if (arr[x] > max) max = arr[x];
    }
    /**
     * Create the memoization
     * table to save our computed results 
     * memo[element][target]
     */
    int** memo = calloc(max + 1, sizeof(int*));
    for (int x = 0; x <= max; x++) {
        memo[x] = calloc(max + 1, sizeof(int));
    }
    for (int x = 0; x <= max; x++) {
        for (int l = 0; l <= MIN; l++) {
            memo[x][l] = -1;
        }
    }
    /**
     * Now starting cutting the array
     * to matche the minimu value
     */
    int min_rounds = 0;
    int min_rounds_zero = 0;
    for (int x = 0; x < n; x++) {
        min_rounds += rounds(arr[x], MIN, memo);
        min_rounds_zero += rounds(arr[x], 0, memo);
    }

    for (int x = 0; x <= max; x++) {
        free(memo[x]);
    }
    free(memo);
    return min(min_rounds, min_rounds_zero);
}