0_0_32280057_7058.cpp: In function 'int main()': 0_0_32280057_7058.cpp:62:26: error: 'c' was not declared in this scope sum += node[m].c*node[c].t; //表示经过父节点p后,需要经历node[p].t时间才到达m,所以讲m同p合并后,总代价要加上这段路径的代价; ^