Compilare: main.cpp: In function 'BigInteger Mlt(BigInteger, BigInteger)': main.cpp:71:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'void read()': main.cpp:124:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&VLength,&pairsNr); ^ main.cpp:126:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ main.cpp: In function 'int main()': main.cpp:178:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("coprime.in","r",stdin); ^ main.cpp:179:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("coprime.out","w",stdout); ^