dezbateri.cpp:14: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x dezbateri.cpp: In function 'int main()': dezbateri.cpp:24: warning: comparison between signed and unsigned integer expressions dezbateri.cpp:25: error: 'struct std::basic_string<char, std::char_traits<char>, std::allocator<char> >' has no member named 'back' dezbateri.cpp:32: error: 'stoi' was not declared in this scope dezbateri.cpp:57: warning: comparison between signed and unsigned integer expressions dezbateri.cpp:65: warning: comparison between signed and unsigned integer expressions