用map对数组进行标记

#include<map>

using namespace std;

const int N=10;

struct node{
    int f[N];
    bool operator < (const node& p) const {
        for(int i=0;i<N;i++){
            if(f[i]==p.f[i]) continue;
            return f[i]<p.f[i];
        }
        return false;
    }
};

int main()
{
    map<node,bool> m;
    node n;
    m[n]=1;
    return 0;
}

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转载自blog.csdn.net/qq_40679299/article/details/81082258