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1_277_878_1741.cpp: In function `int main()':
1_277_878_1741.cpp:27: error: `sqrt' undeclared (first use this function)
1_277_878_1741.cpp:27: error: (Each undeclared identifier is reported only once for each function it appears in.)
1_277_878_1741.cpp:54: error: `fabs' undeclared (first use this function)


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