Borderou de evaluare (job #429397)

Compilare: user.cpp: In function ‘BigInt Integer(std::string)’: user.cpp:42:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘BigInt Integer(char*)’: user.cpp:53:5: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘BigInt operator+(BigInt, BigInt)’: user.cpp:148:5: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:149:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:150:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘BigInt operator-(BigInt, BigInt)’: user.cpp:184:5: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:185:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘BigInt operator*(BigInt, BigInt)’: user.cpp:217:5: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:219:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:220:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘BigInt operator/(BigInt, BigInt)’: user.cpp:246:45: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] user.cpp: In function ‘BigInt operator%(BigInt, BigInt)’: user.cpp:293:45: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] user.cpp: In function ‘int main()’: user.cpp:406:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:407:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:408:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]