D. Mister B and PR Shifts

    const int N = 2e6 + 5;//开两倍空间 int n; arr p,cnt; int l,r,m; ll sum = 0,ans; int main() { // file("test"); sdf(n); For(i, 1, n) sdf(p[i]); For(i, 1, n) { sum += abs(p[i

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