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#pragma GCC optimize("O2,no-stack-protector,unroll-loops") #define ll long long #define pb push_back #define ipar(arr, n) vector<ll> arr(n); for(int i=0;i<n;i++) cin>>arr[i]; #include <cmath> #include <bits/stdc++.h> #define pii pair<int, int>; #define pll pair<ll, ll>; using namespace std; void solve(){ ll n,k; cin>>n>>k; if(k>n/2) {cout<<"no"<<"\n"; return;} ll sum=n*(n-1)/2; if(sum%2==0 && k%2==) } signed main() { ios_base::sync_with_stdio(0); cin.tie(0);cout.tie(0); int t; cin>>t; while(t--) solve(); }
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