View Compilation Error

0_0_33545923_12723.cpp: In function 'int main()':
0_0_33545923_12723.cpp:85:31: error: expected '}' at end of input
             ans += b[v] - b[u];
                               ^
0_0_33545923_12723.cpp:85:31: error: expected '}' at end of input
0_0_33545923_12723.cpp:85:31: error: expected '}' at end of input
0_0_33545923_12723.cpp:85:31: error: expected '}' at end of input
0_0_33545923_12723.cpp:85:31: error: expected '}' at end of input