bulldozer.cpp: In function 'void answer()':
bulldozer.cpp:79:15: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   79 |   int n; scanf("%lld", &n);
      |          ~~~~~^~~~~~~~~~~~
bulldozer.cpp:81:36: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |   for(int i = 1; i <= n; ++i) scanf("%lld%lld%lld", &p[i].x, &p[i].y, &p[i].val);
      |                               ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~