Compilare: main.cpp: In instantiation of 'void heap<capacity, T, __cmp>::pop() [with long unsigned int capacity = 36005; T = triple; __cmp = cmp]': main.cpp:88:15: required from here main.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 34 | while((u<<1|1)<n){ | ~~~~~~~~^~ main.cpp:35:54: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 35 | if(f(data[u],data[(u<<1|1)]) && ((u<<1)+2==n || f(data[u],data[(u<<1)+2]))) return; | ~~~~~~~~^~~ main.cpp:36:24: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 36 | if((u<<1)+2==n || f(data[(u<<1|1)],data[(u<<1)+2])) | ~~~~~~~~^~~