View Compilation Error

0_0_22325231_27309.cpp: In function 'void dfs_2(int, int)':
0_0_22325231_27309.cpp:63:9: error: 'temp' was not declared in this scope
         temp = max(0,dp[fa].s_val2-max(0,dp[now].s_back-2*v_e[now]));
         ^
0_0_22325231_27309.cpp:65:9: error: 'temp' was not declared in this scope
         temp = max(0,dp[fa].s_val1-max(0,dp[now].s_back-2*v_e[now]));
         ^