View Compilation Error

0_0_21585371_25254.cpp: In function 'bool cmp(std::pair<int, int>, std::pair<int, int>)':
0_0_21585371_25254.cpp:22:22: error: 'struct std::pair<int, int>' has no member named 'fi'
     return A.first>B.fi
                      ^
0_0_21585371_25254.cpp:22:22: error: expected ';' at end of input
0_0_21585371_25254.cpp:22:22: error: expected '}' at end of input