foo.cc: In function 'int main()':
foo.cc:6:11: warning: 'a' is used uninitialized [-Wuninitialized]
    6 |     C=(100*a)+(10*b)+c;
      |       ~~~~^~~
foo.cc:5:11: note: 'a' was declared here
    5 |     float a,b,c,C;
      |           ^
foo.cc:6:18: warning: 'b' is used uninitialized [-Wuninitialized]
    6 |     C=(100*a)+(10*b)+c;
      |               ~~~^~~
foo.cc:5:13: note: 'b' was declared here
    5 |     float a,b,c,C;
      |             ^
foo.cc:6:21: warning: 'c' is used uninitialized [-Wuninitialized]
    6 |     C=(100*a)+(10*b)+c;
      |       ~~~~~~~~~~~~~~^~
foo.cc:5:15: note: 'c' was declared here
    5 |     float a,b,c,C;
      |               ^

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