Compilare: user.cpp: In function ‘void bellmanFord(int)’: user.cpp:33:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < adjList[node].size(); ++i) { ^ user.cpp: In function ‘int main()’: user.cpp:59:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &n, &m); ^ user.cpp:61:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d", &a, &b, &l); ^ In file included from /usr/include/string.h:642:0, from user.cpp:5: In function ‘void* memset(void*, int, size_t)’, inlined from ‘void bellmanFord(int)’ at user.cpp:23:26: /usr/include/i386-linux-gnu/bits/string3.h:85:70: warning: call to void* __builtin___memset_chk(void*, int, unsigned int, unsigned int) will always overflow destination buffer [enabled by default] return __builtin___memset_chk (__dest, __ch, __len, __bos0 (__dest)); ^