Compilare: user.cpp: In function ‘int main()’: user.cpp:61:30: warning: variable ‘s’ set but not used [-Wunused-but-set-variable] int rx, ry, cMin, source,s; ^ user.cpp:62:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d", &T); ^ user.cpp:67:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&n,&m); ^ user.cpp:69:59: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d", &v[i].a, &v[i].b, &v[i].w); ^