Compilare: main.cpp: In function 'void add(int, int, int, linie&)': main.cpp:30:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] 30 | int m=(st+dr>>1); | ~~^~~ main.cpp: In function 'i64 query(int, int, int, int)': main.cpp:47:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] 47 | int m=(st+dr>>1); | ~~^~~ main.cpp: At global scope: main.cpp:66:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 66 | main() | ^~~~