leaves.cpp: In function 'int main()': leaves.cpp:60: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x leaves.cpp:72: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x leaves.cpp:72: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x leaves.cpp:81: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x leaves.cpp:81: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x leaves.cpp:90: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x leaves.cpp:90: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x leaves.cpp:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result leaves.cpp:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result leaves.cpp:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result leaves.cpp:44: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result leaves.cpp:47: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result