View Compilation Error

0_0_33739254_18703.cpp: In function 'void dp(long long int)':
0_0_33739254_18703.cpp:6:10: error: return-statement with a value, in function returning 'void' [-fpermissive]
   return 1;
          ^
0_0_33739254_18703.cpp:7:21: error: invalid operands of types 'void' and 'void' to binary 'operator+'
  return dp(n)+dp(n-1);
                     ^
0_0_33739254_18703.cpp:7:21: error: return-statement with a value, in function returning 'void' [-fpermissive]