ant.cpp: In function 'int main()':
ant.cpp:39:28: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
printf("%d\n", x[k].second);
^
ant.cpp:11:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%lld%lld", &n, &l, &t);
^
ant.cpp:14:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld%s", &cx, buf);
^
ant.cpp:30:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &k);
^