foo.cc: In function 'int main()':
foo.cc:7:20: warning: unused variable 't' [-Wunused-variable]
    7 |  int i,j,n,max,min,t,flag=0;
      |                    ^
foo.cc:7:22: warning: unused variable 'flag' [-Wunused-variable]
    7 |  int i,j,n,max,min,t,flag=0;
      |                      ^~~~
foo.cc:8:11: warning: 'n' is used uninitialized in this function [-Wuninitialized]
    8 |  for(i=0;i<n;i++)
      |          ~^~

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