0_0_16484200_18629.cpp: In function 'bool check(int, int)':
0_0_16484200_18629.cpp:16:14: error: 'n' was not declared in this scope
int x=q[n].x/3*3;
^
0_0_16484200_18629.cpp: In function 'int main()':
0_0_16484200_18629.cpp:60:12: error: 'cin' was not declared in this scope
while( cin>>s )
^
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