View Compilation Error

0_0_30939837_1167.cpp: In function 'int main()':
0_0_30939837_1167.cpp:21:28: error: expected primary-expression at end of input
             if(fa[i.first] =
                            ^
0_0_30939837_1167.cpp:21:28: error: expected ')' at end of input
0_0_30939837_1167.cpp:21:28: error: expected statement at end of input
0_0_30939837_1167.cpp:21:28: error: expected '}' at end of input
0_0_30939837_1167.cpp:21:28: error: expected '}' at end of input
0_0_30939837_1167.cpp:21:28: error: expected '}' at end of input