0_0_34397019_16244.cpp: In function 'void cdq(int, int)':
0_0_34397019_16244.cpp:164:6: error: redefinition of 'void cdq(int, int)'
void cdq(int l,int r){
^
0_0_34397019_16244.cpp:144:6: note: 'void cdq(int, int)' previously defined here
void cdq(int l,int r){
^
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