Compilare: user.cpp: In function ‘void Solve()’: user.cpp:12:13: warning: unused variable ‘ls’ [-Wunused-variable] int k=0,ls=0,i; ^ user.cpp: In function ‘int main()’: user.cpp:33:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&ma); ^ user.cpp:36:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%d",&a[i]); ^