0_0_26230257_13752.cpp: In function 'int query(int, int, int)':
0_0_26230257_13752.cpp:111:9: error: 'x' was not declared in this scope
if (x <= mid) return query(x , lson) ;
^
0_0_26230257_13752.cpp:111:14: error: 'mid' was not declared in this scope
if (x <= mid) return query(x , lson) ;
^
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