Compilare: user.cpp: In function ‘void Add(unsigned int)’: user.cpp:19:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < h[x % MOD].size(); ++i){ ^ user.cpp:20:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(h[x % MOD][i] == x){ ^ user.cpp: In function ‘int Find(unsigned int)’: user.cpp:28:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < h[x % MOD].size(); ++i){ ^ user.cpp:29:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(h[x % MOD][i] == x) return 1; ^ user.cpp: In function ‘int main()’: user.cpp:36:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= n; ++i) f >> v[i]; ^ user.cpp:39:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 1; k <= n; ++k){ ^ user.cpp:40:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= n; ++i){ ^ user.cpp:41:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 1; j <= n; ++j){ ^ user.cpp:52:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int q = 1; q <= n; ++q){ ^ user.cpp:54:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int r = 1; r <= n; ++r){ ^ user.cpp:56:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int t = 1; t <= n; ++t){ ^