View Compilation Error

0_0_24909419_304.cpp: In function 'bool check(int, int)':
0_0_24909419_304.cpp:86:25: error: expected ']' before ';' token
         str1[len1 = a[u];
                         ^
0_0_24909419_304.cpp:93:25: error: expected ']' before ';' token
         str2[len2 = a[v];
                         ^