Compilare: main.cpp: In function 'int dij(int)': main.cpp:33:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<d[nod][0].size();i++){ ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:64:31: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'char*' [-Wformat=] fscanf(fi,"%d",&rec[i]); ^ main.cpp:62:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d",&n,&k); ^ main.cpp:64:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&rec[i]); ^ main.cpp:66:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&m); ^ main.cpp:68:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d%d%d",&a,&b,&c,&w); ^