Compilare: main.cpp: In function 'int main()': main.cpp:38:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<vecini[1].size(); ++i){ ~^~~~~~~~~~~~~~~~~ main.cpp:52:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<vecini[aux.dest].size(); ++i){ ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:30:32: 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:32:42: 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); ^