santa.cpp:75:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
75 | main(void){
| ^
santa.cpp: In function 'int main()':
santa.cpp:76:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
76 | scanf("%lld",&t);
| ~~~~~^~~~~~~~~~~
santa.cpp:78:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
78 | scanf("%lld",&n);
| ~~~~~^~~~~~~~~~~
santa.cpp:79:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
79 | FOR scanf("%lld",&a[i]);
| ~~~~~^~~~~~~~~~~~~~
santa.cpp:80:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
80 | FOR scanf("%lld",&b[i]);
| ~~~~~^~~~~~~~~~~~~~
santa.cpp:81:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
81 | FOR scanf("%lld",&c[i]);
| ~~~~~^~~~~~~~~~~~~~