Codeforces 10D LCIs Find the longest common sub and yield increase for this sequence DP

Source: Internet
Author: User

Topic Links: Click the open link

Serie A champions:

Specific n long sequences

Given K-long sequence

Ask for LCIs and output this sub-sequence

If there is more than one solution output free solution.

=-= When listening to the sound of the pre-meaning of the song is not thinking clearly, never thought it was over ...


#include <stdio.h> #include <iostream> #include <string.h> #include <set> #include <vector > #include <map> #include <math.h> #include <string> #include <stdlib.h> #include < algorithm>using namespace std; #define N 505int a[n],s[n];int N, k;int dp[n][n];int pre[n][n][2];int is[n][n];vector& Lt;int>g;int Main () {int i,j,co;while (~scanf ("%d", &n) {g.clear (); for (i=1;i<=n;i++) scanf ("%d", &a[i]) ; scanf ("%d", &k), for (i=1;i<=k;i++) scanf ("%d", &s[i]), memset (DP, 0, sizeof DP), memset (pre, 0, sizeof pre); memset (is, 0, sizeof are); for (i=1;i<=n;i++) {int Maxx = 0;int x = 0, y = 0;for (j=1;j<=k;j++) {Dp[i][j] = Dp[i-1][j];if (A[i]>s[j] && Maxx < dp[i-1][j]) {Maxx = Dp[i-1][j];if (Is[i-1][j]) x = i-1, y = j;else {x = Pre[i-1][j][0];y = Pre[i-1][j][1];}} if (A[i]==s[j]) {is[i][j] = 1;dp[i][j] = Maxx + 1;if (Is[x][y]) pre[i][j][0] = x, pre[i][j][1] = y;else {Pre[i][j][0] = Pre[x ][y][0];p re[i][j][1] = pre[x][y][1];} Continue;} if (is[i-1][j]) pre[i][j][0] = i-1, pre[i][j][1] = j;else {pre[i][j][0] = pre[i-1][j][0];p re[i][j][1] = pre[i-1][j][1];}}} int ans = 0;int x = N, y = k;for (i=1;i<=k;i++) if (Ans<dp[n][i]) {ans = Dp[n][i];x = N, y = i;} printf ("%d\n", ans), if (!ans) continue;while (x+y) {if (Is[x][y]) g.push_back (a[x]); int x1 = Pre[x][y][0];int Y1 = pre[x][y ][1]; x = x1, y = y1;} For (I=g.size ()-1; i>=0; i--) {printf ("%d", G[i]), i?printf (""):p UTS ("");}} return 0;} /*21 231 2 3*/


Codeforces 10D LCIs Find the longest common sub and yield increase for this sequence DP

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.