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View Compilation Error

0_0_10968505_24619.c: In function `f':
0_0_10968505_24619.c:7: error: `a' undeclared (first use in this function)
0_0_10968505_24619.c:7: error: (Each undeclared identifier is reported only once
0_0_10968505_24619.c:7: error: for each function it appears in.)
0_0_10968505_24619.c:7: error: `b' undeclared (first use in this function)


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