foo.cc: In function 'bool judge(std::vector<std::vector<long long int> >&, long long int, long long int)':
foo.cc:9:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |    ((m-1>=0)  &&(n+1<a[0].size()) ?(a[m-1][n+1] <a[m][n]) :1)&&
      |                  ~~~^~~~~~~~~~~~
foo.cc:11:9: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |    ((n+1<a[0].size())     ?(a[m][n+1]  <a[m][n]) :1)&&
      |      ~~~^~~~~~~~~~~~
foo.cc:12:9: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |    ((m+1<a.size()) &&(n-1>=0)   ?(a[m+1][n-1] <a[m][n]) :1)&&
      |      ~~~^~~~~~~~~
foo.cc:13:9: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |    ((m+1<a.size())      ?(a[m+1][n]  <a[m][n]) :1)&&
      |      ~~~^~~~~~~~~
foo.cc:14:9: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |    ((m+1<a.size()) &&(n+1<a[0].size()) ?(a[m+1][n+1] <a[m][n]) :1)
      |      ~~~^~~~~~~~~
foo.cc:14:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |    ((m+1<a.size()) &&(n+1<a[0].size()) ?(a[m+1][n+1] <a[m][n]) :1)
      |                       ~~~^~~~~~~~~~~~

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