Borderou de evaluare (job #438779)

Compilare: user.cpp: In function ‘BigInt Integer(std::string)’: user.cpp:38:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘BigInt Integer(char*)’: user.cpp:49:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘BigInt operator+(BigInt, BigInt)’: user.cpp:144:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:145:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:146:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘BigInt operator-(BigInt, BigInt)’: user.cpp:177:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:178:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘BigInt operator*(BigInt, BigInt)’: user.cpp:207:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:209:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:210:72: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]