#include<bits/stdc++.h>
using namespace std;

class Solution{
public:
    int countPairs(vector<int>& nums, int target){
        const int array_length = 60;
        const int nums_length = nums.size();
        int sums[array_length][array_length];
        int rlt = 0;
        for(int i = 0 ; i < nums_length;i++){
            for(int j = i + 1; j < nums_length; j++){
                if(nums[i]+nums[j] < target){
                    rlt++;
                }
            }
        }
        return rlt;
    }
};

int main(){
    Solution example;
    int target = 0;
    vector<int> ex1 = {-1,1,2,3,1};
    target = 2;
    cout<<example.countPairs(ex1,target)<<endl;
    vector<int> ex2 = {-6,2,5,-2,-7,-1,3};
    target = -2;
    cout<<example.countPairs(ex2,target)<<endl;


    return 0;
}