【USACO】Arithmetic Progressions

/*
ID:
PROG: ariprog
LANG: C++11
 */

#include 
#include 

using namespace std;

int main() {
    freopen("ariprog.in", "r", stdin);
    freopen("ariprog.out", "w", stdout);
    int n;
    int m;
    bool pq[127000] = {};
    cin >> n >> m;
    int squareNum = 0;
    for (int i = 0; i <= m; i ++){
        for (int j = i; j <= m; j ++){
            pq[i*i + j*j] = true;
        }
    }
    int step;
    int start;
    int maxInPq = m*m + m*m;
 //   cout << maxInPq << endl;
    bool b = false;
    for (step = 1; step <= maxInPq; step ++){
        for (start = 0; start <= maxInPq; start ++){
            if (start + (n-1) * step > maxInPq)
                break;
            if (!pq[start])
                continue;
            int i, pos = start;
            for (i = 1; i < n && pq[pos]; i ++){
                pos += step;
            }
            if (i == n && pq[pos]){
                printf("%d %d\n", start, step);
                //cout << start << endl;
                b = true;
            }
        }
    }
    if (!b)
        cout << "NONE" << endl;
    return 0;
}