Borderou de evaluare (job #419986)

Compilare: user.cpp: In function ‘std::string fin(std::string)’: user.cpp:11:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:13:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:13:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:16:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘void magic(std::string)’: user.cpp:36:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:37:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:40:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:44:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘int main()’: user.cpp:67:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]