foo.cc: In function 'int main()':
foo.cc:36:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if(w-h>=0)
   ^~
foo.cc:38:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
    w=w-h-(w-h-((w-h)%100))+300;
    ^
foo.cc:55:12: error: 'out' was not declared in this scope
            out<<n-300;
            ^~~
foo.cc:55:12: note: suggested alternative: 'putw'
            out<<n-300;
            ^~~
            putw

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