View Compilation Error

0_0_22894084_318.cpp: In function 'void dfs2(int, int)':
0_0_22894084_318.cpp:20:3: error: 'suml' was not declared in this scope
   suml+=l[e[i][1]];sumr+=r[e[i][1]];
   ^
0_0_22894084_318.cpp:20:20: error: 'sumr' was not declared in this scope
   suml+=l[e[i][1]];sumr+=r[e[i][1]];
                    ^