Compilare: main.cpp: In function 'int main()': main.cpp:23:25: warning: unused variable 'dist' [-Wunused-variable] int n,m,dx,dy,modul,dist,ok; ^~~~ main.cpp: In function 'bool how(bla, bla)': main.cpp:18:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:24:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ main.cpp:27:53: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&v[i].x,&v[i].y,&v[i].r); ^ main.cpp:31:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&m); ^ main.cpp:35:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&dx,&dy); ^