这段代码报运行超时(1001ms,通过率0%) #include<iostream> #include<algorithm> using namespace std; const int N = 2e6 + 10, INF = 0x3f3f3f3f; typedef pair<int, int> PII; int n, m, num, ct; PII a[N]; int st[N]; void init() { cin >> n >> m; ct = 0; for (int i = 1; i <= n; i+...