Compilare: user.cpp: In function ‘int main()’: user.cpp:7:28: warning: unused variable ‘jum1’ [-Wunused-variable] int n=0,jum,aux,i,n0=0,jum1,k1=0,k2=0,kk1,kk2; ^ user.cpp:12:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%c",&c); ^ user.cpp:22:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%c",&c); ^