0_0_33850349_14273.cpp: In function 'void init()':
0_0_33850349_14273.cpp:11:5: error: 'a' was not declared in this scope
a[1] = 1;
^
0_0_33850349_14273.cpp: In function 'void get_sg()':
0_0_33850349_14273.cpp:26:25: error: 'a' was not declared in this scope
for (int j = 1; a[j] <= i; ++j)
^
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