events.cpp: In function 'int main()':
events.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
14 | scanf("%d%d", &n, &q);
| ~~~~~^~~~~~~~~~~~~~~~
events.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
16 | scanf("%d%d", L + i, R + i);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~
events.cpp:25:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
25 | scanf("%d%d", &x, &y);
| ~~~~~^~~~~~~~~~~~~~~~