分析:
模棱两可的函数调用,(在oj上提交会编译出错)
- Compile Error
Main.cpp F:\temp\19889863.2398\Main.cpp(21) : error C2668: 'sqrt' : ambiguous call to overloaded function math.h(581): could be 'long double sqrt(long double)' math.h(533): or 'float sqrt(float)' math.h(128): or 'double sqrt(double)' while trying to match the argument list '(int)'
系统分不清该是哪种类型的数据
解决办法:
在sqrt括号里面加强制转换类型,
如:
double Distance(node a,node b)
{
return sqrt((double)(a.x-b.x)*(a.x-b.x)+(a.y-b.y)*(a.y-b.y));
}