View Compilation Error

0_0_18238279_10171.cpp: In function 'int main()':
0_0_18238279_10171.cpp:71:19: error: 'cc' was not declared in this scope
             if(!e[cc].count(v))
                   ^
0_0_18238279_10171.cpp:71:29: error: 'v' was not declared in this scope
             if(!e[cc].count(v))
                             ^
0_0_18238279_10171.cpp:75:19: error: 'v' was not declared in this scope
             if(!e[v].count(cc))
                   ^
0_0_18238279_10171.cpp:75:28: error: 'cc' was not declared in this scope
             if(!e[v].count(cc))
                            ^