foo.cc: In function 'int main()':
foo.cc:6:12: warning: unused variable 'max' [-Wunused-variable]
    6 |  int i,j,n,max,min,t,flag=0;
      |            ^~~
foo.cc:6:16: warning: unused variable 'min' [-Wunused-variable]
    6 |  int i,j,n,max,min,t,flag=0;
      |                ^~~
foo.cc:6:20: warning: unused variable 't' [-Wunused-variable]
    6 |  int i,j,n,max,min,t,flag=0;
      |                    ^
foo.cc:6:22: warning: unused variable 'flag' [-Wunused-variable]
    6 |  int i,j,n,max,min,t,flag=0;
      |                      ^~~~

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