Solution of 'Divisible Sum Pairs' (HackerRank)
Hi all!
Here's my solution to the problem 'Divisible Sum Pairs' from HackerRank.
#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define fi first
#define se second
#define pii pair<int,int>
using namespace std;
int divisibleSumPairs(int n, int k, vector<int> ar) {
int cnt=0;
for(int i=0;i<n;i++){
for(int j=i+1;j<n;j++){
if((ar[i]+ar[j])%k==0) cnt++;
}
}
return cnt;
}
int32_t main()
{
int n,k;
cin>>n>>k;
vector<int> num;
for(int i=0;i<n;i++){
int x;
cin>>x;
num.pb(x);
}
int res= divisibleSumPairs(n,k,num);
cout<<res;
}
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