Compilare: main.cpp: In function 'int main()': main.cpp:113:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<ciclu.size();i++) ~^~~~~~~~~~~~~ main.cpp:55:84: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d\n%d %d\n%d %d\n%d\n",&p,&n,&m,&cartita.first,&cartita.second,&k); ^ main.cpp:57:67: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d %d\n",&coord.first,&coord.second,&range); ^ main.cpp:64:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&g); ^ main.cpp:67:78: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d %d %d\n",&h1.first,&h1.second,&h2.first,&h2.second); ^