/in/foo.cc: In function 'int main()':
/in/foo.cc:6:9: warning: 'c' is used uninitialized [-Wuninitialized]
    6 |         if(c== '+'){
      |         ^~
/in/foo.cc:5:6: note: 'c' was declared here
    5 | char c;
      |      ^
/in/foo.cc:7:17: warning: 'a' may be used uninitialized [-Wmaybe-uninitialized]
    7 |         cout<<a+b;
      |                 ^
/in/foo.cc:4:5: note: 'a' was declared here
    4 | int a,b;
      |     ^
/in/foo.cc:7:17: warning: 'b' may be used uninitialized [-Wmaybe-uninitialized]
    7 |         cout<<a+b;
      |                 ^
/in/foo.cc:4:7: note: 'b' was declared here
    4 | int a,b;
      |       ^