0_0_36424337_20967.cpp: In function 'int main()':
0_0_36424337_20967.cpp:29:17: error: 'f' was not declared in this scope
f = 1;
^
0_0_36424337_20967.cpp:38:17: error: 'f' was not declared in this scope
f = 2;
^
0_0_36424337_20967.cpp:44:17: error: 'f' was not declared in this scope
if (f == 0)
^
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