Compilare: user.cpp: In function ‘int next_let(char)’: user.cpp:32:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cursor>s.size()) ^ user.cpp: In function ‘int main()’: user.cpp:58:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<s.size(); ++i){ ^ user.cpp:76:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cursor+sizee <= s.size()){ ^ user.cpp:80:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int qu_i = 0; qu_i<qu.size(); qu_i ++){ ^ user.cpp:85:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cursor <1 || cursor > s.size() ){ ^ user.cpp:94:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( cursor <= s.size() && cursor > 0) ^ user.cpp:78:26: warning: unused variable ‘oprit’ [-Wunused-variable] bool oprit = false; ^ user.cpp: In function ‘void citire()’: user.cpp:133:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i<=s.size()+10; i++) ^