Compilare: main.cpp: In function 'int main()': main.cpp:45:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=drum[nod].size();i++) ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:18:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d",&nr,&n,&m); ^ main.cpp:20:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&dragon[i]); ^ main.cpp:23:39: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d",&x,&y,&dist);; ^