Judge Internal Error (map的value值排序)

版权声明:菜鸟一枚~~ 有想法可在下面评论, 转载标明出处即可。 https://blog.csdn.net/KLFTESPACE/article/details/87571703

中途用到了vector。 


#include<iostream>
#include<map>
#include <algorithm>
#include <vector>

int cmp(const std::pair<int, int>& x, const std::pair<int, int>& y)
{
    return x.second > y.second;
}

void sortMapByValue(std::map<int, int>& tMap, std::vector<std::pair<int, int> >& tVector)
{
    for (std::map<int, int>::iterator curr = tMap.begin(); curr != tMap.end(); curr++)
    {
        tVector.push_back(std::make_pair(curr->first, curr->second));
    }

    std::sort(tVector.begin(), tVector.end(), cmp);
}
int main()
{

    int T, n;

     std::cin >> T;

    while(T--){
        std::cin >> n;
        std::map<int, int> a;

        int tmp;
        for(int i=0; i<n; i++){
            std::cin >> tmp;

            a[tmp]++;

  //          std::cout << tmp << ":" << a[tmp] << std::endl;
        }

/*

        if(n == 1){
            std::cout << tmp << std::endl;
            continue;
        }
*/
        std::vector<std::pair<int,int> > t;
        sortMapByValue(a, t);


 //       std::cout << t.size() << std::endl;
        for(int i=0; i < t.size(); i++){
//            std::cout << t[i].first << ":" << t[i].second << std::endl;
            if(t[i].second == t[0].second && i != t.size()-1){
                tmp = t[i].first;
                continue;
            }
            else {
                if(i == t.size()-1)
                    tmp = t[i].first;
                std::cout << tmp <<  std::endl;
                break;
            }
        }
    }


    return 0;
}


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转载自blog.csdn.net/KLFTESPACE/article/details/87571703