0_0_8947791_25668.cpp: In function `int main()':
0_0_8947791_25668.cpp:22: error: `sg' undeclared (first use this function)
0_0_8947791_25668.cpp:22: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8947791_25668.cpp:25: error: expected `]' before ')' token
0_0_8947791_25668.cpp:31: error: expected primary-expression before '[' token
0_0_8947791_25668.cpp:33: error: expected `]' before ';' token
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