compare

#include <stdio.h>

void swap(double * a, double * b){
    double temp = *a;
    *a = *b;
    *b = temp;
}

void bubble_sort(double * a, int N){
    int i, j;
    for (i = 0; i < N-1; i++)
        for (j = i+1; j < N; j++)
            if (a[i] > a[j])
                swap(&a[i], &a[j]);
}

int compare(double * a, double * b, int N, int M){
    bubble_sort(a, N);
    bubble_sort(b, M);
    if (a[N-1] < b[0])
        return -1;
    else if (a[0] > b[M-1])
        return 1;
    else
        return 0;
}

void fill_mas(double * mas, int N, int a, int b){
    int i;
    for(i = 0; i < N; i++)
        mas[i] = rand()%(b-a+1)+a;
}

void print_mas(double * a, int N){
    int i;
    for(i = 0; i < N; i++)
        printf("%f ", a[i]);
    printf("\n");
}

int main(){
    unsigned const int N = 5;
    unsigned const int M = 3;
    double a[N], b[M];

    fill_mas(a, N, -10, 0);
    fill_mas(b, M, 1, 10);

    print_mas(a, N);
    print_mas(b, M);

    int res = compare(a, b, N, M);
    printf("res = %d", res);

    return 0;
}