Compilare: main.cpp: In function 'int main()': main.cpp:49:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d%d",&n,&m,&q); ^ main.cpp:50:63: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for (i=1;i<=m;i++) fscanf(f1,"%d%d%d",&a[i].x,&a[i].y,&a[i].c); ^ main.cpp:52:53: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for (i=1;i<=q;i++) fscanf(f1,"%d%d",&v[i].x,&v[i].y); ^