foo.cc: In function 'int main()':
foo.cc:49:22: warning: 'y0' may be used uninitialized [-Wmaybe-uninitialized]
   49 |         if(W[x0-1][y0]<DT)DX=-1,DY=0,DT=W[x0-1][y0];
      |            ~~~~~~~~~~^
foo.cc:9:16: note: 'y0' was declared here
    9 |     int x,y,x0,y0;cin>>x>>y;
      |                ^~
foo.cc:49:16: warning: 'x0' may be used uninitialized [-Wmaybe-uninitialized]
   49 |         if(W[x0-1][y0]<DT)DX=-1,DY=0,DT=W[x0-1][y0];
      |              ~~^~
foo.cc:9:13: note: 'x0' was declared here
    9 |     int x,y,x0,y0;cin>>x>>y;
      |             ^~

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