Compilare: user.cpp: In function ‘int nrcons(int)’: user.cpp:6:30: warning: unused variable ‘k’ [-Wunused-variable] int h=0,h2=0,ok1=0,ok2=0,k,z; ^ user.cpp: In function ‘int main()’: user.cpp:35:10: warning: unused variable ‘c’ [-Wunused-variable] char c=32; ^ user.cpp:38:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ user.cpp:42:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&x); ^