Compilare: user.cpp: In function ‘int main()’: user.cpp:13:13: warning: unused variable ‘x’ [-Wunused-variable] int i,n,x,frecv1[11]= {0},frecv2[11]= {0},cop,pluton=0,cif,cmp,j,l,cnt=0,pmax,max; ^ user.cpp:15:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%i",&n); ^ user.cpp:19:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%i",&m[i][0]); ^