Compilare: user.cpp: In function ‘int main()’: user.cpp:11:45: warning: unused variable ‘c’ [-Wunused-variable] int n, x, s=0, i, m=0, in1=1, in2, a=0, c; ^ user.cpp:38:32: warning: ‘in2’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<a<<" "<<in1<<" "<<in2; ^