Compilare: user.cpp: In function ‘long int maxl(unsigned int, long int, unsigned int)’: user.cpp:23:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dmax[x]>max) ^ user.cpp:26:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[x].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:45:36: warning: format ‘%u’ expects argument of type ‘unsigned int*’, but argument 5 has type ‘long int*’ [-Wformat=] fscanf(f1,"%u%u%u",&x,&y,&l); ^ user.cpp:71:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dist[g[x][i].y]>l+g[x][i].l) ^ user.cpp:40:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%u%u%u",&p,&n,&m); ^ user.cpp:42:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%u",&dmax[i]); ^ user.cpp:45:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%u%u%u",&x,&y,&l); ^