message: logic added to covid run solution
diff: +/*
  + The logic is to run the program a minimum number of times, i.e. n times in order
  + to check if the city of spread reaches the desired city
  +
  + Thus we run the loop and increment x by k over n iterations to check if it ever equals k
  +
  + If it does, we set an infect tag and print "YES"
  +*/
  +
  #include<iostream>
  using namespace std;
  int main() {
  