T258480 [Aya Round 1 C] 文文的构造游戏

https://www.luogu.com.cn/record/82793996

Luogu/T258480/T258480.cpp

@@ -0,0 +1,29 @@
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+int t;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> t;
+
+    while (t--) {
+        long long s;
+        int m;
+
+        cin >> s >> m;
+
+        if (s % 2 || m == 1) {
+            cout << -1 << endl;
+        } else {
+            cout << 2 << ' ' << (s >> 1) << ' ' << (s >> 1) << endl;
+        }
+    }
+
+    return 0;
+}