divide.cpp:10:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main(){
^
divide.cpp: In function 'int main()':
divide.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld",&n);
~~~~~^~~~~~~~~~~
divide.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld%lld%lld",&a[i].x,&a[i].g,&a[i].d);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~