int DFS(a, b,c,d)
{
first=a+b;
second=c+d;
return(first,second);
}
solution, cost_limit = DFS(a, b,c,d);
我能做这样的事情吗? 如何?
int DFS(a, b,c,d)
{
first=a+b;
second=c+d;
return(first,second);
}
solution, cost_limit = DFS(a, b,c,d);
我能做这样的事情吗? 如何?
在C++11中,可以为此使用图形类型和<代码>tie。
#include <tuple>
std::tuple<int, int> DFS (int a, int b, int c, int d)
{
return std::make_tuple(a + b, c + d);
}
...
int solution, cost_limit;
std::tie(solution, cost_limit) = DFS(a, b, c, d);
有了C++17,你可以不包奶粉或面粉
auto[i, j] = pair<int, int>{1, 2};
cout << i << j << endl; //prints 12
auto[l, m, n] = tuple<int, int, int>{1, 2, 3};
cout << l << m << n << endl; //prints 123
您可以采取以下两种方式:
1. 创建具有两个价值观的构体,并将其归为:
struct result
{
int first;
int second;
};
struct result DFS(a, b, c, d)
{
// code
}
具备参数:
void DFS(a, b, c, d, int& first, int& second)
{
// assigning first and second will be visible outside
}
呼吁:
DFS(a, b, c, d, first, second);
你们应当知道的是,如果一、b、c、d不是基类,而是你定义的一类,请说Foo,而且你超负荷了该类的操作者,那么,你必须确保经营者返回提及所分配的物体,否则你将无法进行链条转让(解决办法=费用限额=每日生活津贴)。 = 运营商应当这样做:
Foo& Foo::operator =(const Foo& other)
{
//do stuff
return other;
}
如果不可能使用C++11,则有可能使用参考文献。
通过提及参数中的变量。
int DFS(int a, int b, int c, int d, int &cost_limit)
{
cost_limit = c + d;
return a + b;
}
int solution, cost_limit;
solution = DFS(a, b, c, d, cost_limit);
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