7.b

char * sacaEspacios(char*frase){
    int pos=0;
    for(int i=0;i<strlen(frase);i++){
        if(frase[i]==32){
            pos = i+1;
            while(frase[i]==32){
                if(frase[pos]!=32){
                    frase[i]=frase[pos];
                    frase[pos]=32;
                }
                else{
                    pos++;
                }
            }
        }
    }
    return 0;
}
char * aMayusculas(char*frase,int posinicial){
    static int pos=0;
    if(frase[pos]>96 && frase[pos]<123){
        frase[pos]=frase[pos]-32;
    }
    pos++;
    posinicial=pos;
    if(pos<strlen(frase)){
        aMayusculas(frase,posinicial);
    }
    return frase;
}

int esPalindroma(const char*frase,int posinicial, int posFinal){
    static int flag=0;
    static int i=0;
    if(frase[i]==frase[posFinal-i]){
        flag = 1;
        i++;
        if(i<posFinal){
            esPalindroma(frase, posinicial,posFinal);
        }
        else{
            return flag;
        }
    }
    else{
        flag =0;
    }
    if (flag==0){
        return 0;
    }
    return flag;
}