Compilare: user.cpp: In function ‘int main()’: user.cpp:44:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &n, &m); ^ user.cpp:47:54: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &trucks[i].c, &trucks[i].t); ^ user.cpp:60:16: warning: ‘tm’ may be used uninitialized in this function [-Wmaybe-uninitialized] int tmin = tm; ^