Compilare: user.cpp: In function ‘void Find(Hash, int)’: user.cpp:30:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<table[sample.hash1].size()&&(table[sample.hash1][i].first!=sample.hash2||!AreEqual(table[sample.hash1][i].second,index));i++); ^ user.cpp:31:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<table[sample.hash1].size()){ ^ user.cpp: In function ‘int main()’: user.cpp:72:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("siruri.in","r",stdin); ^ user.cpp:73:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("siruri.out","w",stdout); ^ user.cpp:75:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&previous); ^ user.cpp:78:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&current); ^ user.cpp:82:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&m,&previous); ^ user.cpp:85:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&current); ^