如题。 #include <bits/stdc++.h> using namespace std; #define fast_io ios::sync_with_stdio(0), cin.tie(nullptr) #define endl '\n' #define int long long #define ar array<int, 2> #define arr array<int, 3> int T, n, m, k, inf = 1e18, mod = 1e9 + 7; const int N = 3e5 + 50; vector<ar>...
BValue：22行改成
```cpp
l += max(x, y);
```