Compilare: user.cpp: In function ‘int main()’: user.cpp:61:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<E[i].size();j++) ^ user.cpp:69:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<tostop.size();j++) ^ user.cpp:38:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&cer); ^ user.cpp:39:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&X,&Y); ^ user.cpp:40:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&t); ^ user.cpp:41:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&N); ^ user.cpp:44:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&V[i].x,&V[i].y);Stopped[i]=-1; ^