View Compilation Error

0_0_33160585_8555.cpp: In function 'int main()':
0_0_33160585_8555.cpp:225:9: error: 'class std::vector<Point>' has no member named 'si'
    if(s.si
         ^
0_0_33160585_8555.cpp:225:9: error: expected ')' at end of input
0_0_33160585_8555.cpp:225:9: error: expected statement at end of input
0_0_33160585_8555.cpp:225:9: error: expected '}' at end of input
0_0_33160585_8555.cpp:225:9: error: expected '}' at end of input
0_0_33160585_8555.cpp:225:9: error: expected '}' at end of input