View Compilation Error

0_0_25671876_12572.cpp: In function 'int main()':
0_0_25671876_12572.cpp:48:17: error: invalid initialization of non-const reference of type 'int&' from an rvalue of type 'int'
     add(sum[j-1]+dp[i][j]);
                 ^
0_0_25671876_12572.cpp:17:13: note: in passing argument 1 of 'void add(int&, int)'
 inline void add(int &a,int b)
             ^