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View Compilation Error

0_0_23245456_7528.cpp: In function 'void Lengauer_Tarjan()':
0_0_23245456_7528.cpp:113:13: error: redeclaration of 'int len'
         int len = a[x].size();
             ^
0_0_23245456_7528.cpp:78:17: note: 'int len' previously declared here
             int len = b[x].size();//b???????
                 ^
0_0_23245456_7528.cpp:136:1: error: a function-definition is not allowed here before '{' token
 {
 ^
0_0_23245456_7528.cpp:168:1: error: expected '}' at end of input
 }
 ^


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