Compilare: user.cpp: In function ‘int solve()’: user.cpp:37:9: warning: unused variable ‘i’ [-Wunused-variable] int i,p,k,ans; ^ user.cpp:37:11: warning: unused variable ‘p’ [-Wunused-variable] int i,p,k,ans; ^ user.cpp:37:15: warning: unused variable ‘ans’ [-Wunused-variable] int i,p,k,ans; ^ user.cpp: In function ‘int main()’: user.cpp:53:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp: In function ‘int binarys(int, int, int)’: user.cpp:23:12: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^ user.cpp: In function ‘long long int sum(int)’: user.cpp:29:32: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] j=binarys(1,n,mid-v[i]); ^ user.cpp: In function ‘int solve()’: user.cpp:44:14: warning: ‘k’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (a<=k&&a!=b) ^ user.cpp:49:12: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^