foo.cc: In function 'int main()':
foo.cc:24:17: warning: iteration 14 invokes undefined behavior [-Waggressive-loop-optimizations]
   24 |       minn[i][y]=mini;
      |       ~~~~~~~~~~^~~~~
foo.cc:15:22: note: within this loop
   15 |         for(int i=1;i<=15;i++)
      |                     ~^~~~
foo.cc:35:17: warning: iteration 14 invokes undefined behavior [-Waggressive-loop-optimizations]
   35 |       maxn[x][i]=maxi;
      |       ~~~~~~~~~~^~~~~
foo.cc:26:22: note: within this loop
   26 |         for(int i=1;i<=15;i++)
      |                     ~^~~~
foo.cc:30:17: warning: iteration 14 invokes undefined behavior [-Waggressive-loop-optimizations]
   30 |        if(a[j][i]>maxi)
      |           ~~~~~~^
foo.cc:29:20: note: within this loop
   29 |       for(int j=1;j<=15;j++)
      |                   ~^~~~
foo.cc:40:20: warning: iteration 14 invokes undefined behavior [-Waggressive-loop-optimizations]
   40 |        if(maxn[i][j]!=0&&minn[i][j]!=0)
      |           ~~~~~~~~~^
foo.cc:39:20: note: within this loop
   39 |       for(int j=1;j<=15;j++)
      |                   ~^~~~
foo.cc:35:17: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
   35 |       maxn[x][i]=maxi;
      |       ~~~~~~~~~~^~~~~
foo.cc:24:17: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
   24 |       minn[i][y]=mini;
      |       ~~~~~~~~~~^~~~~

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