foo.cc: In function 'int main()':
foo.cc:42:15: error: 'INT_MAX' was not declared in this scope
   42 |     int ans = INT_MAX;
      |               ^~~~~~~
foo.cc:23:1: note: 'INT_MAX' is defined in header '<climits>'; did you forget to '#include <climits>'?
   22 | #include <chrono>
  +++ |+#include <climits>
   23 | using namespace std;
foo.cc:47:17: warning: unused variable 'now' [-Wunused-variable]
   47 |             int now = dp[i][j], pre = dp[i-1][j];
      |                 ^~~

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