joi2019_ho_t2.cpp: In function 'int main()':
joi2019_ho_t2.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d",&n,&m);
~~~~~^~~~~~~~~~~~~~~
joi2019_ho_t2.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d",&p[i].nd,&p[i].st);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t2.cpp:37:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",c+i);
~~~~~^~~~~~~~~~