View Compilation Error

0_0_39763303_22367.cpp: In function 'void solve1()':
0_0_39763303_22367.cpp:11:30: error: expected ';' before ')' token
   11 |         for(int i = 4;i <= 40) dp[i] = d[i-1] + dp[i-2];
      |                              ^
      |                              ;
0_0_39763303_22367.cpp:11:40: error: 'd' was not declared in this scope
   11 |         for(int i = 4;i <= 40) dp[i] = d[i-1] + dp[i-2];
      |                                        ^