bile2.cpp: In function 'std::pair<_treap*, _treap*> splt(_treap*&, int)': bile2.cpp:74: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x bile2.cpp:91: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x bile2.cpp:73: warning: unused variable 'l' bile2.cpp:73: warning: unused variable 'r' bile2.cpp: In function 'int main()': bile2.cpp:187: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result bile2.cpp:188: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result bile2.cpp:193: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result bile2.cpp:199: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result