div2E/div1C
非递减的情况是http://codeforces.com/contest/13/problem/C这道题,对于递增的情况,令a[i]-=i即可(通俗地说就是抄一抄http://codeforces.com/contest/13/submission/18181413的代码然后加一行即可http://codeforces.com/contest/713/submission/20599297
非递减的情况是http://codeforces.com/contest/13/problem/C这道题,对于递增的情况,令a[i]-=i即可(通俗地说就是抄一抄http://codeforces.com/contest/13/submission/18181413的代码然后加一行即可http://codeforces.com/contest/713/submission/20599297