0_0_18803272_21595.cpp: In function 'bool check_prime(long long int)':
0_0_18803272_21595.cpp:68:16: error: two or more data types in declaration of 'i'
for(LL int i=2; i*i<=x; i++)
^
0_0_18803272_21595.cpp:68:21: error: 'i' was not declared in this scope
for(LL int i=2; i*i<=x; i++)
^
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