Compilare: user.cpp: In function ‘int main()’: user.cpp:61:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,x; ^ user.cpp: In function ‘long long int Solve(int)’: user.cpp:53:18: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] suma +=1LL*(N-sol)*(x-1); ^ user.cpp:34:24: warning: ‘suma’ may be used uninitialized in this function [-Wmaybe-uninitialized] suma+=(x-1); ^