Compilare: user.cpp: In function ‘void problema()’: user.cpp:11:47: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d %d %d %d %d",&a,&b,&k,&c,&d); ^ user.cpp: In function ‘int main()’: user.cpp:60:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&t); ^