View Compilation Error

0_0_17420218_19295.cpp: In function 'long long int dfs(int, long long int)':
0_0_17420218_19295.cpp:93:76: error: lvalue required as left operand of assignment
     for(int p=base[x];p && sum;p=pre[p])if(!visited[vec[p]] && w[p] && temp=dfs(vec[p],min(sum,w[p]))){
                                                                            ^