Compilare: user.cpp: In function ‘void citireAIB()’: user.cpp:16:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%ld",&x); // ^ user.cpp: In function ‘void op0()’: user.cpp:51:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%ld%ld", &a, &b); // ^ user.cpp: In function ‘void op1()’: user.cpp:56:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%ld%ld", &a, &b); // ^ user.cpp: In function ‘void op2()’: user.cpp:62:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%ld",&a); ^ user.cpp: In function ‘int main()’: user.cpp:73:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%ld%ld",&n,&m); // ^ user.cpp:82:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&op); ^