View Compilation Error

0_0_18287749_5725.cpp: In function 'int main()':
0_0_18287749_5725.cpp:158:15: error: 'class std::vector<edge>' has no member named 'reverse'
          G[i].reverse(1000); G[i].reverse(1000);
               ^
0_0_18287749_5725.cpp:158:35: error: 'class std::vector<edge>' has no member named 'reverse'
          G[i].reverse(1000); G[i].reverse(1000);
                                   ^