Number Spiral.cpp

#include<bits/stdc++.h>
using namespace std;
#define INF 2147483647
#define INFL 9223372036854775807
#define pii pair<int,int>
#define F first
#define S second
#define mp make_pair
#define pb push_back
#define ll long long
#define ull unsigned long long
#define M 1000000007
#define FASTIO ios_base::sync_with_stdio(false);cin.tie(NULL); cout.tie(NULL);
#define take(x) scanf("%d",&x)
#define DE(x) printf("\ndebug %d\n",x);
#define vout(x) for(int i=0;i<x.size();i++) printf("%d ",x[i]);
#define pie acos(-1)
#define MOD 998244353

int main(){
    int t = 1;
    scanf("%d",&t);
    for(int tc=1;tc<=t;tc++){
        int n,m;
        cin>>m>>n;
        ll serial = max(n,m);
        if( serial%2 == 0 ){
            swap(n,m);
        }
        if( n<=m ){
            cout<<(serial-1)*(serial-1)+n<<endl;
        } else{
            cout<<(serial-1)*(serial-1)+2*serial-m<<endl;
        }
    }
}