B. Fedya and Maths time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Fedya studies in a gymnasium. Fedya's maths hometa
B. Fedya and Maths time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Fedya studies in a gymnasium. Fedya's maths hometas
Question 260: Given an array of numbers nums, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the two elements that appear only once. 中文:一个整形数组,里
最开始写了一发贪心wa了,然后这种选和不选的组合优化问题,一般是考虑动态规划 d p [ i ] [ 0 ] : dp[i][0]: dp[i][0]:表示第i个数不选的最大值 d p [ i ] [ 1 ] : dp[i][1]: dp[i][1]:表示第i个数选的最大值 考虑转移: d p [ i ] [ 0 ] = m a x ( d p [ i − 1 ] [ 1 ] ,