#include <iostream> #include <vector> using namespace std; int main() { int n, m; cin >> n >> m; vector<long long> a(n + 2, 0), d(n + 2, 0); // 读入原数组 for (int i = 1; i <= n; i++) { cin >> a[i]; } // 构建差分数组 for (int i = 1; i <= n; i++) { d[i] = a[i] - a[i - 1...