santa.cpp:84:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
84 | main(void){
| ^
santa.cpp: In function 'int main()':
santa.cpp:85:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
85 | scanf("%lld",&t);
| ~~~~~^~~~~~~~~~~
santa.cpp:87:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
87 | scanf("%lld",&n);
| ~~~~~^~~~~~~~~~~
santa.cpp:88:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
88 | FOR scanf("%lld",&a[i]);
| ~~~~~^~~~~~~~~~~~~~
santa.cpp:89:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
89 | FOR scanf("%lld",&b[i]);
| ~~~~~^~~~~~~~~~~~~~
santa.cpp:90:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
90 | FOR scanf("%lld",&c[i]);
| ~~~~~^~~~~~~~~~~~~~