foo.cc: In function 'int main()':
foo.cc:13:33: warning: statement has no effect [-Wunused-value]
   13 |                 if(c[i]>90) h[i]==h[i]+2000;
      |                             ~~~~^~~~~~~~~~~
foo.cc:5:19: warning: 'a' is used uninitialized [-Wuninitialized]
    5 |         string b[a],e[a],f[a];
      |                   ^
foo.cc:4:13: note: 'a' declared here
    4 |         int a,i=0,sum=0,max=0,x;
      |             ^
foo.cc:4:31: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
    4 |         int a,i=0,sum=0,max=0,x;
      |                               ^

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