View Compilation Error

0_0_30398520_17870.cpp: In function 'void dfs(int, int)':
0_0_30398520_17870.cpp:24:3: error: expected ',' or ';' before 'long'
   long long w = es[i].cost;
   ^
0_0_30398520_17870.cpp:28:62: error: 'w' was not declared in this scope
   (dp[u] += (dp[v] + (N - siz[v]) * siz[v] % Mod * T % Mod * w % Mod)) %= Mod;
                                                              ^