Cuestionario 1 preg 3

//gcc 5.4.0

#include  <stdio.h>
#include  <string.h>
int main()
{
    int num;
    int cont=0;
    int L, R;
    int i=0, h=0, k=0, j=0;
    int vector[24];

    do{
    scanf("%d",&num);
    }while((num < 1) || (num > 24));

    do{
    scanf("%d",&L);
    }while((L < 1) || (L > 100));

    do{
    scanf("%d",&R);
    }while((R < L)||(R < 1) || (R > 100));

    for(i=0; i < num; i++){
        scanf("%d",&vector[i]);
    }

    for(i = 0; i < num; i++){
        for(j = 0; j < num-1; j++){
            if(vector[j] > vector[j+1]){
                h = vector[j];
                vector[j] = vector[j+1];
                vector[j+1] = h;

            }
        }
    }

        for(i=0; i < num; i++){

            if(num > 1){
                for(j = (i+1); j < num; j++){
                    if((vector[i] + vector[i+1] >= L) && (vector[i]+vector[i+1] <= R)) {
                        cont++;
                    }
                }
            }

            if(i >= 2){
                h = vector[i-2]+vector[i-1];
                for(k = i; k < num; k++){
                    h = vector[k]+h;
                    if((h >= L)&&(h <= R)){
                        cont++;
                    }
                }
            }

            for( = ;  < num; ++){

                h = vector[i-2]+vector[i-1];
                for(k = i; k < num; k++){
                    h = vector[k]+h;
                    if((h >= L)&&(h <= R)){
                        cont++;
                    }
                }

            }



        }



    printf("%d",cont);

    return 0;
}