sushi.cpp: In function 'int main()':
sushi.cpp:19:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &N, &Q);
~~~~~^~~~~~~~~~~~~~~~
sushi.cpp:21:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &arr[i]);
~~~~~^~~~~~~~~~~~~~~
sushi.cpp:26:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d%d", &a, &b, &c);
~~~~~^~~~~~~~~~~~~~~~~~~~~~