View Compilation Error

0_0_2974411_13143.cpp: In function `int main()':
0_0_2974411_13143.cpp:46: error: no match for 'operator=' in 'dp[i][j] = 1'
0_0_2974411_13143.cpp:6: note: candidates are: node& node::operator=(const node&)
0_0_2974411_13143.cpp:47: error: `d' undeclared (first use this function)
0_0_2974411_13143.cpp:47: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2974411_13143.cpp:47: error: expected primary-expression before '[' token
0_0_2974411_13143.cpp:47: error: expected `]' before ';' token