View Compilation Error

0_0_25626429_4375.cpp: In function 'int main()':
0_0_25626429_4375.cpp:31:75: error: expected ']' before ')' token
                 if(s[i-1=='0'&&(i==1||s[i-2]=='+'||s[i-2]=='*')&&s[i]=='?'){
                                                                           ^