Compilare: user.cpp: In function ‘int main()’: user.cpp:9:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&T); ^ user.cpp:13:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d",&N,&dx,&dy); ^ user.cpp:16:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&M);for(int j=1;j<=M;j++)fscanf(f,"%d %d",&dx,&dy); ^ user.cpp:16:77: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&M);for(int j=1;j<=M;j++)fscanf(f,"%d %d",&dx,&dy); ^