View Compilation Error

0_0_26479773_26021.cpp: In function 'll query(int, int, int, int, int)':
0_0_26479773_26021.cpp:76:22: error: 'qu' was not declared in this scope
     if(y > m) ans += qu
                      ^
0_0_26479773_26021.cpp:76:22: error: expected '}' at end of input