foo.cc: In function 'int main()':
foo.cc:7:6: warning: statement has no effect [-Wunused-value]
     a==m/100;
     ~^~~~~~~
foo.cc:8:6: warning: statement has no effect [-Wunused-value]
     b==(m-a*100)/10;
     ~^~~~~~~~~~~~~~
foo.cc:9:6: warning: statement has no effect [-Wunused-value]
     c==m%10;
     ~^~~~~~
foo.cc:10:9: warning: 'a' is used uninitialized in this function [-Wuninitialized]
     if(a*a*a+b*b*b+c*c*c==m)cout<<"Yes";
        ~^~
foo.cc:10:15: warning: 'b' is used uninitialized in this function [-Wuninitialized]
     if(a*a*a+b*b*b+c*c*c==m)cout<<"Yes";
              ~^~
foo.cc:10:21: warning: 'c' is used uninitialized in this function [-Wuninitialized]
     if(a*a*a+b*b*b+c*c*c==m)cout<<"Yes";
                    ~^~

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