Compilare: main.cpp: In function 'int main()': main.cpp:92:28: warning: left shift count >= width of type [-Wshift-count-overflow] ll st = 1, dr = 1 << 62 - 1; ^ main.cpp:92:26: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] ll st = 1, dr = 1 << 62 - 1; ~~~^~~ main.cpp:71:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pic.in", "r", stdin); ^ main.cpp:72:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pic.out", "w", stdout); ^