foo.cc: In function 'int main()':
foo.cc:13:33: warning: format '%c' expects argument of type 'char*', but argument 2 has type 'int' [-Wformat=]
   13 |                         scanf("%c",str[i][j]);
      |                                ~^  ~~~~~~~~~
      |                                 |          |
      |                                 char*      int

Found 2 testcases.
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