View Compilation Error

0_0_12972662_22107.cpp: In function `void dfs(int, int, int, int)':
0_0_12972662_22107.cpp:32: error: expected primary-expression before '%' token
0_0_12972662_22107.cpp:32: error: expected `;' at end of input
0_0_12972662_22107.cpp:32: error: expected `}' at end of input
0_0_12972662_22107.cpp:32: error: expected `}' at end of input