Question

cum se rezolva problema suma_B_numere pbinfo

Answer 1

#include <iostream>

using namespace std;

int main()

{

   int a,b;

   cin>>a>>b;

   if(a==0&&b==0)

       cout<<"DA";

   else if((a%b==0&&b%2==1)||(a==(b*(b+1))/2)||(a==(b*(b-1))/2)||(a==9&&b==2)||(b==2&&a%2==1))

       cout<<"DA";

   else

       cout<<"NU";

   return 0;

}

Answer 2

#include <iostream>

using namespace std;

int main()

{

long long a,b,d,x;

cin>>a>>b;

x=a-((b-1)*b)/2;

x=x/b;

if(a==x*b+((b-1)*b)/2)

cout<<“DA”;

else

cout<<“NU”;

return 0;

}

Asta e rezolvarea.