Compilare: user.cpp: In function ‘long long int DFS(long long int, long long int)’: user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:52: warning: format ‘%lld’ expects type ‘long long int*’, but argument 3 has type ‘int*’ user.cpp:52: warning: format ‘%lld’ expects type ‘long long int*’, but argument 4 has type ‘int*’ user.cpp:52: warning: format ‘%lld’ expects type ‘long long int*’, but argument 5 has type ‘int*’ user.cpp:65: warning: format ‘%lld’ expects type ‘long long int*’, but argument 3 has type ‘int*’ user.cpp:46: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:52: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:59: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:65: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result