View Compilation Error

0_0_29098282_15532.cpp: In function 'int main()':
0_0_29098282_15532.cpp:91:33: error: lvalue required as left operand of assignment
       ans[(type[a]^1)+type[V[i]]-=W[i];
                                 ^
0_0_29098282_15532.cpp:91:39: error: expected ']' before ';' token
       ans[(type[a]^1)+type[V[i]]-=W[i];
                                       ^
0_0_29098282_15532.cpp:92:29: error: lvalue required as left operand of assignment
       ans[type[a]+type[V[i]]+=W[i];
                             ^
0_0_29098282_15532.cpp:92:35: error: expected ']' before ';' token
       ans[type[a]+type[V[i]]+=W[i];
                                   ^