Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:17:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0 ; i < v[nod].size() ; i++){ ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int bfs(int)': main.cpp:43:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0 ; i < v[nod].size() ; i++){ ~~^~~~~~~~~~~~~~~ main.cpp:28:28: warning: unused variable 'poz' [-Wunused-variable] int i , vecin , maxi , poz; ^~~ main.cpp: In function 'int main()': main.cpp:81:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0 ; j < g[i].size() ; j++){ ~~^~~~~~~~~~~~~ main.cpp:61:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&m); ^ main.cpp:63:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&x,&y); ^ main.cpp: In function 'int bfs(int)': main.cpp:52:12: warning: 'maxi' may be used uninitialized in this function [-Wmaybe-uninitialized] return maxi; ^~~~