View Compilation Error

0_0_4480589_10781.cpp: In function `void dfs(int, int)':
0_0_4480589_10781.cpp:24: error: expected `]' before "cut"
0_0_4480589_10781.cpp:24: error: expected `]' before "cut"
0_0_4480589_10781.cpp:24: error: no match for 'operator[]' in 'data[way[i]]'
0_0_4480589_10781.cpp:24: error: expected `)' before "cut"