View Compilation Error

0_0_6693001_9858.cpp:21: error: conflicting declaration 'long long int v'
0_0_6693001_9858.cpp:2: error: 'v' has a previous declaration as `int v[1000001]'
0_0_6693001_9858.cpp:21: error: type mismatch with previous external decl of `long long int v'
0_0_6693001_9858.cpp:2: error: previous external decl of `int v[1000001]'
0_0_6693001_9858.cpp:21: error: declaration of `long long int v'
0_0_6693001_9858.cpp:2: error: conflicts with previous declaration `int v[1000001]'
0_0_6693001_9858.cpp: In function `void dfs1(int, int)':
0_0_6693001_9858.cpp:30: error: incompatible types in assignment of `int' to `int[1000001]'
0_0_6693001_9858.cpp:32: error: invalid operands of types `long long int' and `int[1000001]' to binary `operator*'