A simple brute force solution for the problem should be as follows. Let the final value of all elements in the array be equal tocc, and the minimum value ofaiaifor1≤i≤n1≤i≤nbe equal tomm. Since the only operation allowed is to decreaseaiaibybibi, the maximum value ofcccan never be...
(L+1)/2 subsegments with all numbers smaller than or equal to X will correspond. So what you need is a structure so that when you unblock an element you can compute the lengths of the continuous (maybe empty) unblocked subsegments that contained its neighbors. Let them be L1 and L2. ...
Solution: Fix the highest bit 1 of a substring, then append 1 more bit to get a new value v, if the current length is the same with v, add 1 to ans. Otherwise check if there are v - len preceeding 0s. To speed this up, precompute a zero prefix sum array. For each fixed hig...
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2019-12-05 14:07 − We define the Perfect Number is a positive integer that is equal to the sum of all its positive divisors except itself. Now, given... Schwifty 0 166 CF1271E Common Number 2019-12-15 21:10 − 数学+二分连续打了3场$codeforces$,深深的被各种模拟贪心分类讨论...
2019-12-05 14:07 −We define the Perfect Number is a positive integer that is equal to the sum of all its positive divisors except itself. Now, given... Schwifty 0 166 CF1271E Common Number 2019-12-15 21:10 −数学+二分 连续打了3场$codeforces$,深深的被各种模拟贪心分类讨论的$C$...
PracticeTwoPointersMethod1B-NumberOfSmaller.cpp PracticeTwoPointersMethod1C-NumberOfEqual.cpp PracticeTwoPointersMethod2A-SegmentWithSmallSum.cpp PracticeTwoPointersMethod2B-SegmentWithBigSum.cpp PracticeTwoPointersMethod2C-NumberOfSegmentsWithSmallSum.cpp PracticeTwoPointersMethod2D-NumberOfSegmentsWithBigSum.cp...
Number of subsegments with maximum element equal to KRevision en3, by CopeCope, 2018-01-30 22:02:42 Given array A of N (N <= 106 ) elements (Ai <= 109 ). Given Q queries (Q <= 106 ). Every query consist of number K (K <= 109 ). For every query find number of ...
Permuation Question : Number of Strings with no K consequetive equal letters given the string is made of lower case alphabets Read here : Explanation It has beautiful solution using recurrence formulaes. Basically the Recurrence is : if k == n: ways[n] = (power(26,k) - 26) if n <...
2019-12-05 14:07 − We define the Perfect Number is a positive integer that is equal to the sum of all its positive divisors except itself. Now, given... Schwifty 0 166 CF1271E Common Number 2019-12-15 21:10 − 数学+二分连续打了3场$codeforces$,深深的被各种模拟贪心分类讨论...