Compilare: main.cpp: In function 'int main()': main.cpp:40:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<vecini[1].size(); ++i) ~^~~~~~~~~~~~~~~~~ main.cpp:49:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<vecini[aux.dest].size(); ++i){ ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:31:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &x, &y, &z); ^