Compilare: main.cpp: In function 'int main()': main.cpp:54:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<graph[no].size();++i) ~^~~~~~~~~~~~~~~~~ main.cpp:33:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&cap,&p,&n); ^ main.cpp:35:50: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&story[i].d,&story[i].c); ^ main.cpp:38:49: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&x,&y),interzis[x][y]=1; ^