View Compilation Error

0_0_32788206_15599.cpp: In function 'void tarjan(int)':
0_0_32788206_15599.cpp:50:23: error: expected '}' at end of input
   while (!st.empty()) {//此时 从栈顶到栈中的u 的所有%
                       ^
0_0_32788206_15599.cpp:50:23: error: expected '}' at end of input
0_0_32788206_15599.cpp:50:23: error: expected '}' at end of input