View Compilation Error

0_0_21317115_1839.cpp: In function 'void dfs(int, int)':
0_0_21317115_1839.cpp:37:24: error: invalid operands of types 'Edge* [200050]' and 'int' to binary 'operator%'
   for (Edge * p = head%5
                        ^
0_0_21317115_1839.cpp:37:24: error: expected ';' at end of input
0_0_21317115_1839.cpp:37:24: error: expected primary-expression at end of input
0_0_21317115_1839.cpp:37:24: error: expected ';' at end of input
0_0_21317115_1839.cpp:37:24: error: expected primary-expression at end of input
0_0_21317115_1839.cpp:37:24: error: expected ')' at end of input
0_0_21317115_1839.cpp:37:24: error: expected statement at end of input
0_0_21317115_1839.cpp:37:24: error: expected '}' at end of input