0_0_18369463_21467.cpp: In function 'int main()':
0_0_18369463_21467.cpp:14:16: error: 'num' was not declared in this scope
memset(num,0,sizeof(num));
^
0_0_18369463_21467.cpp:14:33: error: 'memset' was not declared in this scope
memset(num,0,sizeof(num));
^
0_0_18369463_21467.cpp:19:34: error: 'gcd' was not declared in this scope
num[gcd(a[i],a[j])]=1;
^
0_0_18369463_21467.cpp:30:41: error: 'gcd' was not declared in this scope
int t=gcd(i,a[j]);
^
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