0_0_21850049_30748.cpp: In function 'void init(int)': 0_0_21850049_30748.cpp:24:9: error: invalid operands of types 'void(int, int, int)' and 'int' to binary 'operator%' dfs%2 ^ 0_0_21850049_30748.cpp:24:9: error: expected '}' at end of input