[POJ1185] Artillery positions (pressure DP)

Title Link: http://poj.org/problem?id=1185

This is different from the previous one, in that the range of effects of a point is two lattices. Then DP (cur,pre,i) indicates how many methods can be used when the line I state is the Cur,i-1 row state is the pre. When the transfer is enumerated ppre, it is i-2 line. Divert

1 /*2 ━━━━━┒ギリギリ♂eye! 3 ┓┏┓┏┓┃キリキリ♂mind! 4 ┛┗┛┗┛┃\0/5 ┓┏┓┏┓┃/6 ┛┗┛┗┛┃ノ)7 ┓┏┓┏┓┃8 ┛┗┛┗┛┃9 ┓┏┓┏┓┃Ten ┛┗┛┗┛┃ One ┓┏┓┏┓┃ A ┛┗┛┗┛┃ - ┓┏┓┏┓┃ - ┃┃┃┃┃┃ the ┻┻┻┻┻┻ - */ -#include <algorithm> -#include <iostream> +#include <iomanip> -#include <cstring> +#include <climits> A#include <complex> at#include <fstream> -#include <cassert> -#include <cstdio> -#include <bitset> -#include <vector> -#include <deque> in#include <queue> -#include <stack> to#include <ctime> +#include <Set> -#include <map> the#include <cmath> * using namespacestd; $ #defineFr FirstPanax Notoginseng #defineSC Second - #defineCL Clear the #defineBUG puts ("Here!!!") + #defineW (a) while (a--) A #definePB (a) push_back (a) the #defineRint (a) scanf ("%d", &a) + #defineRll (a) scanf ("%i64d", &a) - #defineRs (a) scanf ("%s", a) $ #defineCIN (a) CIN >> a $ #defineFRead () freopen ("in", "R", stdin) - #defineFWrite () freopen ("Out", "w", stdout) - #defineRep (i, Len) for (int i = 0; i < (len); i++) the #defineFor (I, A, Len) for (int i = (a); I < (len); i++) - #defineCls (a) memset ((a), 0, sizeof (a))Wuyi #defineCLR (A, X) memset ((a), (x), sizeof (a)) the #defineFull (a) memset ((a), 0x7f7f7f, sizeof (a)) - #defineLRT RT << 1 Wu #defineRRT RT << 1 | 1 - #definePi 3.14159265359 About #defineRT return $ #defineLowbit (x) x & (-X) - #defineONECNT (x) __builtin_popcount (x) -typedefLong LongLL; -typedefLong DoubleLD; Atypedef unsignedLong LongULL; +typedef pair<int,int>PII; thetypedef pair<string,int>psi; -typedef PAIR&LT;LL, Ll>PLL; $typedef map<string,int>MSI; thetypedef vector<int>VI; thetypedef vector<ll>VL; thetypedef vector<vl>VVL; thetypedef vector<BOOL>vb; -  in Const intMAXN =101; the Const intMAXM = One; the CharTMP[MAXM]; About intdp[1<<maxm][1<<MAXM] [MAXN]; the intG[MAXN]; the intN, M; the  + BOOLOkintXinti) { -     if((x & G[i])! = x)return 0; the     if((x <<1) & x! =0)return 0;Bayi     if((x <<2) & x! =0)return 0; the     return 1; the } -  - signed Main () { the     //FRead (); the      while(~SCANF ("%d%d",&n,&m)) { the Cls (G); the         intMM =1<<m; -for (I,1, n+1) { the Rs (TMP); the              for(intj = m-1; J >=0; j--) { theG[i] <<=1;94G[i] |= (tmp[j] = ='P'?1:0); the             } the         } theRep (i, mm) {if(!ok (I,1))Continue;98dp[i][0][1] =__builtin_popcount (i); About         } -Rep (i, mm) {if(!ok (I,1))Continue;101Rep (J, mm) {if(!ok (J,2))Continue;102                 if(I & J)Continue;103dp[i][j][2] = max (dp[i][j][2], dp[i][0][1] +__builtin_popcount (i));104             } the         }106for (I,3, n+1) {107REP (cur, mm) {if(!ok (cur, i))Continue;108REP (pre, MM) {if(!ok (Pre, I-1))Continue;109                     if(Cur & Pre)Continue; the Rep (Ppre, mm) {111                         if(cur & pre) | | (cur & ppre) | | (Pre & Ppre))Continue; theDp[cur][pre][i] = max (Dp[cur][pre][i], dp[pre][ppre][i-1] +__builtin_popcount (cur));113                     } the                 } the             } the         }117         intRET =0;118 Rep (i, mm) {119 Rep (J, mm) { -RET =Max (ret, dp[i][j][n]);121             }122         }123printf"%d\n", ret);124     } theRt0;126}

[POJ1185] Artillery positions (pressure DP)