Compilare: main.cpp: In function 'bool bfs(Graph*, int (*)[1000], int, int, int, int*)': main.cpp:19:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int it = 0; it < graph[nod].size(); it++) ~~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:63:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int it = 0; it < graph[n - 1].size(); it++) ~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:46:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &n, &m); ^ main.cpp:53:50: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d", &nod1, &nod2, &cost); ^