Compilare: main.cpp: In function 'void dfs(trie*)': main.cpp:44:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<nod->v.size(); ++i) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:53:25: warning: format '%s' expects argument of type 'char*', but argument 3 has type 'char (*)[1000005]' [-Wformat=] fscanf(fin, "%s", &A); fscanf(fin, "%d", &n); ^ main.cpp:56:29: warning: format '%s' expects argument of type 'char*', but argument 3 has type 'char (*)[10005]' [-Wformat=] fscanf(fin, "%s", &s); ^ main.cpp:53:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%s", &A); fscanf(fin, "%d", &n); ^ main.cpp:53:49: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%s", &A); fscanf(fin, "%d", &n); ^ main.cpp:56:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%s", &s); ^