Помощ с оптимизацией кода

 #include   
using namespace std;  
#define int int64_t  
signed main() {  
    ios::sync_with_stdio(0);   
    cin.tie(0);  
    int t;  
    cin >> t;  
    while (t--) {  
        int n;  
        cin >> n;  
        vector vec(n);  
        for (int i = 0; i < n; ++i) cin >> vec[i];  
        int ans = 0;  
        int m = -1;  
        for (int h = 0; h < n; ++h) {  
            if (vec[h] > m) m = vec[h];   
        } 
 
        for (int i = 0; i < n; ++i) {  
            for (int s = 2; s <= m; ++s) {  
                int l = vec[i] % s;  
                int anss = 1;  
                for (int h = i + 1; h < n; ++h) {  
                    if (vec[h] % s == l) anss++;  
                    else break;  
                }   
                if (anss > ans) ans = anss;  
            }  
        }  
        cout << ans << "\n";  
    }  
    return 0;  
}