0_0_32200578_16558.cpp: In function 'int isprime(int)':
0_0_32200578_16558.cpp:8:25: error: 'sqrt' was not declared in this scope
int n=sqrt(double(k));
^
0_0_32200578_16558.cpp: In function 'int main()':
0_0_32200578_16558.cpp:45:37: error: 'memset' was not declared in this scope
memset(visit,0,sizeof(visit));
^
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