Compilare: user.cpp: In function ‘void crParcurgere(int, int)’: user.cpp:100:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘void solveQueries(int, int, int)’: user.cpp:132:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < Q[node].size(); i++){ ^ user.cpp:144:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < Q[node].size(); i++){ ^ user.cpp:151:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:187:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘char nextch()’: user.cpp:11:36: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buf, BUF_SIZE, 1, fi); ^