Main.cc: In function ‘int main()’:
Main.cc:6:5: error: ‘a’ was not declared in this scope
if(a>b&&a>c)
^
Main.cc:6:7: error: ‘b’ was not declared in this scope
if(a>b&&a>c)
^
Main.cc:6:12: error: ‘c’ was not declared in this scope
if(a>b&&a>c)
^
Main.cc:7:2: error: expected primary-expression before ‘else’
else
^~~~