View Compilation Error

0_0_25646056_12707.cpp: In function 'int main()':
0_0_25646056_12707.cpp:68:22: error: 'struct edge' has no member named 'used'
                 e[i].used = 1;
                      ^
0_0_25646056_12707.cpp:77:21: error: 'struct edge' has no member named 'used'
             if(e[i].used)
                     ^