没注释有空格

#include <bits/stdc++.h>
using namespace std;

int main() {
    int t, mod;
    cin >> t >> mod;
    
    while (t--) {
        int x, y;
        cin >> x >> y;
        
        if (x == 0) {
            cout << 1 << endl;
            continue;
        }
        if (y == 0) {
            cout << 2 << endl;
            continue;
        }
        
        set<tuple<int, int, bool>> visited;
        bool draw = false;
        int temp = 1; 
        
        while (x != 0 && y != 0) {
            if (visited.count({x, y, temp})) {
                draw = true;
                break;
            }
            
            visited.insert({x, y, temp});
            
            if (temp) {
                x = (x + y) % mod;
            } else {
                y = (x + y) % mod;
            }
            
            temp ^= 1; 
        }
        
        if (draw) {
            cout << "error" << endl;
        } else {
            cout << (x == 0 ? 1 : 2) << endl;
        }
    }
    
    return 0;
}